jaw crusher for primary crushing | fote machinery

jaw crusher for primary crushing | fote machinery

Applied materials: pebble, calcite, granite, quartz, concrete, dolomite, bluestone, iron ore, limestone, coal gangue, construction waste, ferrosilicon, basalt, sandstone, rocks, ore, glass, cement clinker and some metal.

Jaw crusher, invented by Whitney Blake in 1858, is a primary stone crushing machine for reducing minerals or stones into smaller sizes. It is a must-have machine in wide range of fields like mining, quarrying, and construction industries.

The movable jaw moving from side to side is hung on the mandrel. When the eccentric shaft is turning, its connecting rod moves up and down, which also drives the two toggle plates to do the same movement. Then the moveable jaw moves from side to side to realize crushing and unloading.

Although the movable jaw bears great broken counter-force and the eccentric shaft and the connecting rod bears little stress, industrial enterprises usually make large and middle size machine to crush hard materials. Additionally, the moving track of the movable jaw is an arc with the mandrel as its center.

The circular arc radius equals the distance from the point to the axis with the upper arc being smaller and the lower arc bigger. The crushing efficiency of the jaw crusher is quite high and the crushing ratio is 3-6.

We all know that jaw plate is the most easily worn parts among various of parts installed in jaw crusher. Therefore, in order to use the machine efficiently, the jaw plate should be checked and replaced regularly.

In June 2020, a customer from the Indonesia bought a jaw crusher(spesifikasi jaw crusher) produced by Fote Company to process limestone. According his production and final product demand, we recommand him this jaw stone crusher with capacity of 800t/h.

Powerful Manufacturer: Fote Heavy Machinery Co., Ltd. is a high-tech enterprise integrating R&D, production, sales and service. The hot jaw crushers manufactured by Fote Company can be further dividedinto four types:Blake jaw crusher, Dodge jaw crusher, PE universal jaw crusher and mobile jaw crusher.

Glorious History: In the past 37 years, the company has been committed to crushing equipment, beneficiation equipment, building materials equipment and industrial grinding equipment, providing high-grade sand and gravel solutions and high-end complete sets of equipment for large-scale projects such as highways, railways and hydropower.

Customers' satisfaction: The development of Fote always catches up with the development trend of the market, as a result, the quality of the crusher produced by Fote is guaranteed, and we always gain good feedback from the market.

High-quality Machine: This is mainly due to the crusher's characteristics of high reduction ratio, high productivity, simple structure and reliable performance. And maintenance is convenient and practical.

As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.

Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

double toggle jaw crusher - hxjq

double toggle jaw crusher - hxjq

Double toggle jaw crusher is widely used for the coarse and medium crushing operations of various ores with not more than 320Mpa compression strength in mining, metallurgy, building, highway, railway, water conservancy and chemical industry and many other industries, which has large processing particle size.

The crushing cavity of double toggle jaw crusher is composed of a fixed crushing plate on the frame and the crushing plates on movable jaw as well as the giant column plate lining section surrounded by the upper and lower side panels. When the materials are fed into the crushing chamber, through the movement of moving jaw, the periodic volume of the crushing cavity will be changed to complete the crushing and discharging of materials.

Double toggle jaw crusher has simple and compact structure, the transmission part of eccentric shaft has smaller force; the vertical displacement of movable jaw is small, the processing of materials have less over crushing phenomenon, small dynamic wear of movable jaw plate.

Model Feed opening (mm Max.feeding size (mm) Adjusting range of discharge opening (mm) Processing capacity (t/h) Rotation speed of eccentric shaft (r/min) Motor power (kw) Total weight (t) Dimensions LWH (mm) PE-150250 150250 125 10-40 1-3 250 4P 5.5 0.8 720660850 PE-200300 200300 180 15-50 2-6 260 4P 7.5 1.2 910750990 PE-200350 200350 180 18-70 3-10 260 4P 11 1.5 1000870990 PE-250400 250400 210 20-60 5-21 300 6P 15 2.8 130010901270 PE-400600 400600 340 40-100 16-64 275 6P 30 7 173017301630 PE-500750 500750 425 50-100 40-110 275 6P 55 12 198020801870 PE-600750 600750 500 150-200 80-240 275 6P 55 15.8 207020001920 PE-600900 600900 500 65-160 50-160 250 6P 55 17 219022062300 PE-7501060 7501060 630 80-140 110-320 250 8P 110 29 266024302800 PE-8001060 8001060 640 130-190 130-330 250 8P 110 29.8 271024302800 PE-8301060 8301060 650 160-220 150-336 250 8P 110 30.7 274024302800 PE-8701060 8701060 660 200-260 190-336 250 8P 110 31.5 281024302800 PE-9001060 9001060 685 230-290 230-390 250 8P 110 33 287024202940 PE-9001200 9001200 750 95-165 220-380 200 8P 110 52 338028703330 PE-10001200 10001200 850 195-265 315-500 200 8P 110 55 348028763330 PE-12001500 12001500 1020 150-350 400-800 180 6P 160-220 100.9 420033003500 PE-15001800 15001800 1200 220-350 500-1000 180 8P 280-355 139 516036604248 PEX-150750 150750 120 18-48 8-25 320 4P 15 3.8 120015301060 PEX-250750 250750 210 25-60 13-35 330 6P 22 5.5 138017501540 PEX-2501000 2501000 210 25-60 16-52 330 6P 30 7 156019501390 PEX-2501200 2501200 210 25-60 20-61 330 6P 37 9.7 214016601500 PEX-3001300 3001300 250 20-90 16-105 300 6P 55 15.6 272019501600 Model Max.feeding size (mm) Processing capacity (t/h) PE-150250 125 1-3 PE-200300 180 2-6 PE-200350 180 3-10 PE-250400 210 5-21 PE-400600 340 16-64 PE-500750 425 40-110 PE-600750 500 80-240 PE-600900 500 50-160 PE-7501060 630 110-320 PE-8001060 640 130-330 PE-8301060 650 150-336 PE-8701060 660 190-336 PE-9001060 685 230-390 PE-9001200 750 220-380 PE-10001200 850 315-500 PE-12001500 1020 400-800 PE-15001800 1200 500-1000 PEX-150750 120 8-25 PEX-250750 210 13-35 PEX-2501000 210 16-52 PEX-2501200 210 20-61 PEX-3001300 250 16-105

jaw crusher working principle

jaw crusher working principle

A sectional view of the single-toggle type of jaw crusher is shown below.In one respect, the working principle and application of this machine are similar to all types of rock crushers, the movable jaw has its maximum movement at the top of the crushing chamber, and minimum movement at the discharge point. The motion is, however, a more complex one than the Dodge motion, being the resultant of the circular motion of the eccentric shaft at the top of the swing jaw. combined with the rocking action of the inclined toggle plate at the bottom of this jaw. The motion at the receiving opening is elliptical; at the discharge opening, it is a thin crescent, whose chord is inclined upwardly toward the stationary jaw. Thus, at all points in the crushing chamber, the motion has both, vertical and horizontal, components.

It will be noted that the motion is a rocking one. When the swing jaw is rising, it is opening, at the top, during the first half of the stroke, and closing during the second half, whereas the bottom of the jaw is closing during the entire up-stroke. A reversal of this motion occurs during the downstroke of the eccentric.

The horizontal component of motion (throw) at the discharge point of the single-toggle jaw crusher is greater than the throw of the Dodge crusher at that point; in fact, it is about three-fourths that of Blake machines of similar short-side receiving-opening dimensions. The combination of favorable crushing angle, and nonchoking jaw plates, used in this machine, promotes a much freer action through the choke zone than that in the Dodge crusher. Capacities compare very favorably with comparable sizes of the Blake machine with non-choking plates, and permissible discharge settings are finer. A table of ratings is given.

The single-toggle type jaw crusher has been developed extensively. Because of its simplicity, lightweight, moderate cost, and good capacity, it has found quite a wide field of application in portable crushing rigs. It also fits into the small, single-stage mining operation much better than the slower Dodge type. Some years since this type was developed with very wide openings for reduction crushing applications, but it was not able to seriously challenge the gyratory in this field, especially when the high-speed modern versions of the latter type were introduced.

Due to the pronounced vertical components of motion in the single-toggle machine, it is obvious that a wiping action takes place during the closing strokes; either, the swing jaw must slip on the material, or the material must slip along the stationary jaw. It is inevitable that such action should result in accelerated wear of the jaw plates; consequently, the single-toggle crusher is not an economical machine for reducing highly abrasive, or very hard, tough rock. Moreover, the large motion at the receiving opening greatly accentuates shocks incidental to handling the latter class of material, and the full impact of these shocks must be absorbed by the bearings in the top of the swing jaw.

The single-toggle machine, like the Dodge type, is capable of making a high ratio-of-reduction, a faculty which enables it to perform a single-stage reduction of hand-loaded, mine run ore to a suitable ball mill, or rod mill, feed.

Within the limits of its capacity, and size of receiving openings, it is admirably suited for such operations. Small gravel plant operations are also suited to this type of crusher, although it should not be used where the gravel deposit contains extremely hard boulders. The crusher is easy to adjust, and, in common with most machines of the jaw type, is a simple crusher to maintain.

As rock particles are compressed between the inclined faces of the mantle and concaves there is a tendency for them to slip upward. Slippage occurs in all crushers, even in ideal conditions. Only the particles weight and the friction between it and the crusher surfaces counteract this tendency. In particular, very hard rock tends to slip upward rather than break. Choke feeding this kind of material can overload the motor, leaving no option but to regulate the feed. Smaller particles, which weigh less, and harder particles, which are more resistant to breakage, will tend to slip more. Anything that reduces friction, such as spray water or feed moisture, will promote slippage.

Leading is a technique for measuring the gap between fixed and moveable jaws. The procedure is performed while the crusher is running empty. A lead plug is lowered on a lanyard to the choke point, then removed and measured to find out how much thickness remains after the crusher has compressed it. This measures the closed side setting. The open side setting is equal to this measurement plus the throw of the mantle. The minimum safe closed side setting depends on:

Blake (Double Toggle) Originally the standard jaw crusher used for primary and secondary crushing of hard, tough abrasive rocks. Also for sticky feeds. Relatively coarse slabby product, with minimum fines.

Overhead Pivot (Double Toggle) Similar applications to Blake. Overhead pivot; reduces rubbing on crusher faces, reduces choking, allows higher speeds and therefore higher capacities. Energy efficiency higher because jaw and charge not lifted during cycle.

Overhead Eccentric (Single Toggle) Originally restricted to sampler sizes by structural limitations. Now in the same size of Blake which it has tended to supersede, because overhead eccentric encourages feed and discharge, allowing higher speeds and capacity, but with higher wear and more attrition breakage and slightly lower energy efficiency. In addition as compared to an equivalent double toggle, they are cheaper and take up less floor space.

Since the jaw crusher was pioneered by Eli Whitney Blake in the 2nd quarter of the 1800s, many have twisted the Patent and come up with other types of jaw crushers in hopes of crushing rocks and stones more effectively. Those other types of jaw crusher inventors having given birth to 3 groups:

Heavy-duty crushing applications of hard-to-break, high Work Index rocks do prefer double-toggle jaw crushers as they are heavier in fabrication. A double-toggle jaw crusher outweighs the single-toggle by a factor of 2X and well as costs more in capital for the same duty. To perform its trade-off evaluation, the engineering and design firm will analyze technical factors such as:

1. Proper selection of the jaws. 2. Proper feed gradation. 3. Controlled feed rate. 4. Sufficient feeder capacity and width. 5. Adequate crusher discharge area. 6. Discharge conveyor sized to convey maximum crusher capacity.

Although the image below is of a single-toggle, it illustrates the shims used to make minor setting changes are made to the crusher by adding or removing them in the small space between the crushers mainframe and the rea toggle block.

The jaw crusher discharge opening is the distance from the valley between corrugations on one jaw to the top of the mating corrugation on the other jaw. The crusher discharge opening governs the size of finished material produced by the crusher.

Crusher must be adjusted when empty and stopped. Never close crusher discharge opening to less than minimum opening. Closing crusher opening to less than recommended will reduce the capacity of crusher and cause premature failure of shaft and bearing assembly.

To compensate for wear on toggle plate, toggle seat, pitman toggle seat, and jaws additional shims must be inserted to maintain the same crusher opening. The setting adjustment system is designed to compensate for jaw plate wear and to change the CSS (closed side setting) of the jaw crusher. The setting adjustment system is built into the back frame end.

Here also the toggle is kept in place by a compression spring. Large CSS adjustments are made to the jaw crusher by modifying the length of the toggle. Again, shims allow for minor gap adjustments as they are inserted between the mainframe and the toggle block.

is done considering the maximum rock-lump or large stone expected to be crushed and also includes the TPH tonnage rate needing to be crushed. In sizing, we not that jaw crushers will only have around 75% availability and extra sizing should permit this downtime.

As a rule, the maximum stone-lump dimension need not exceed 80% of the jaw crushers gape. For intense, a 59 x 79 machine should not see rocks larger than 80 x 59/100 = 47 or 1.2 meters across. Miners being miners, it is a certainty during day-to-day operation, the crusher will see oversized ore but is should be fine and pass-thru if no bridging takes place.

It will be seen that the pitman (226) is suspended from an eccentric on the flywheel shaft and consequently moves up and down as the latter revolves, forcing the toggle plates outwards at each revolution. The seating (234) of the rear toggle plate (239) is fixed to the crusher frame; the bottom of the swing jaw (214) is therefore pushed forward each time the pitman rises, a tension rod (245) fitted with a spring (247) being used to bring it back as the pitman falls. Thus at each revolution of the flywheel the movable jaw crushes any lump of ore once against the stationary jaw (212) allowing it to fall as it swings back on the return half-stroke until eventually the pieces have been broken small enough to drop out. It follows that the size to which the ore is crushed.

The jaw crusher is not so efficient a machine as the gyratory crusher described in the next paragraph, the chief reason for this being that its crushing action is confined to the forward stroke of the jaw only, whereas the gyratory crusher does useful work during the whole of its revolution. In addition, the jaw crusher cannot be choke-fed, as can the other machine, with the result that it is difficult to keep it working at its full capacity that is, at maximum efficiency.

Tables 5 and 6 give particulars of different sizes of jaw crushers. The capacity figures are based on ore weighing 100 lb. per cubic foot; for a heavier ore, the figures should be increased in direct proportion to its weight in pounds per cubic foot.

The JAW crusher and the GYRATORY crusher have similarities that put them into the same class of crusher. They both have the same crushing speed, 100 to 200 R.P.M. They both break the ore by compression force. And lastly, they both are able to crush the same size of ore.

In spite of their similarities, each crusher design has its own limitations and advantages that differ from the other one. A Gyratory crusher can be fed from two sides and is able to handle ore that tends to slab. Its design allows a higher-speed motor with a higher reduction ratio between the motor and the crushing surface. This means a dollar saving in energy costs.

A Jaw crusher on the other hand requires an Ely wheel to store energy. The box frame construction of this type of crusher also allows it to handle tougher ore. This design restricts the feeding of the crusher to one side only.

The ore enters from the top and the swing jaw squeezes it against the stationary jaw until it breaks. The broken ore then falls through the crusher to be taken away by a conveyor that is under the crusher.Although the jaws do the work, the real heart of this crusher is the TOGGLE PLATES, the PITMAN, and the PLY WHEEL.

These jaw crushers are ideal forsmall properties and they are of the high capacity forced feed design.On this first Forced Feed Jaw Crusher, the mainframe and bumper are cast of special alloy iron and the initial cost is low. The frame is ribbed both vertically and horizontally to give maximum strength with minimum weight. The bumper is ruggedly constructed to withstand tremendous shock loads. Steel bumper can be furnished if desired. The side bearings are bronze; the bumper bearings are of the antifriction type.

This bearing arrangement adds both strength and ease of movement. The jaw plates and cheek plates are reversible and are of the best-grade manganese steel. The jaw opening is controlled by the position of an adjustable wedge block. The crusher is usually driven by a V-to-V belt drive, but it can be arranged for either V-to-flat or fiat belt drive. The 8x10 size utilizes a split frame and maybe packed for muleback transportation. Cast steel frames can be furnished to obtain maximum durability.

This second type of forced feed rock crusher is similar in design to the Type H listed above except for having a frame and bumper made of cast steel. This steel construction makes the unit lighter per unit of size and adds considerable strength. The bearings are all of the special design; they are bronze and will stand continuous service without any danger of failure. The jaw and cheek plates are manganese steel; and are completely reversible, thus adding to their wearing life. The jaw opening is controlled by the position of an adjustable wedge block. The crushers are usually driven by V-to-V but can be arranged for V-to-flat and belt drive. The 5x6 size and the 8x10 size can be made with sectionalized frame for muleback transportation. This crusher is ideal for strenuous conditions. Consider a multi jaw crusher.

Some jaw crushers are on-floor, some aboveground, and others underground. This in many countries, and crushing many kinds of ore. The Traylor Bulldog Jaw crusher has enjoyed world wide esteem as a hard-working, profit-producing, full-proof, and trouble-free breaker since the day of its introduction, nearly twenty years ago. To be modern and get the most out of your crushing dollars, youll need the Building breaker. Wed value the privilege of telling you why by letter, through our bulletins, or in person. Write us now today -for a Blake crusher with curved jaw plates that crush finer and step up production.

When a machine has such a reputation for excellence that buyers have confidence in its ability to justify its purchase, IT MUST BE GOOD! Take the Type G Traylor Jaw Crusher, for instance. The engineers and operators of many great mining companies know from satisfying experience that this machine delivers a full measure of service and yields extra profits. So they specify it in full confidence and the purchase is made without the usual reluctance to lay out good money for a new machine.

The success of the Type G Traylor Jaw Crusheris due to several characteristics. It is (1) STRONG almost to superfluity, being built of steel throughout; it is (2) FOOL-PROOF, being provided with our patented Safety Device which prevents breakage due to tramp iron or other causes of jamming; it is (3) ECONOMICAL to operate and maintain, being fitted with our well-known patented Bulldog Pitman and Toggle System, which saves power and wear by minimizing frictionpower that is employed to deliver increased production; it is (4) CONVENIENT to transport and erect in crowded or not easily accessible locations because it is sectionalized to meet highly restrictive conditions.

Whenever mining men need a crusher that is thoroughly reliable and big producer (which is of all time) they almost invariably think first of a Traylor Type G Jaw Crusher. By experience, they know that this machine has built into it the four essentials to satisfaction and profit- strength, foolproofness, economy, and convenience.

Maximum STRENGTH lies in the liberal design and the steel of which crushers parts are made-cast steel frame, Swing Jaw, Pitman Cap and Toggles, steel Shafts and Pitman rods and manganese steel Jaw Plates and Cheek Plates. FOOLPROOFNESS is provided by our patented and time-tested safety Device which prevents breakage due to packing or tramp iron. ECONOMY is assured by our well-known Bulldog Pitman and Toggle System, which saves power and wear by minimizing friction, the power that is used to deliver greater productivity. CONVENIENCE in transportation and erection in crowded or not easily accessible locations is planned for in advance by sectionalisation to meet any restrictive conditions.

Many of the worlds greatest mining companies have standardized upon the Traylor Type G Jaw Crusher. Most of them have reordered, some of them several times. What this crusher is doing for them in the way of earning extra dollars through increased production and lowered costs, it will do for you! Investigate it closely. The more closely you do, the better youll like it.

pe series jaw crusher for primary crushing | hxjq

pe series jaw crusher for primary crushing | hxjq

There are many particle size reduction devices including jaw crushers, impact crushers, cone crushers, and hammer crushers, among which jaw crusher, as the longest and most popular crushing equipment, has been widely used in the primary crushing of materials.

Jaw crusher is the traditional crushing equipment with many models and large output. PE jaw crusher is mainly used for primary crushing of various ores and undisturbed materials, also used for both coarse and fine crushing.

There are many models of PE jaw crushers, among which the most popular models arePE-7501060, PE-600900, PE-150250, etc. In order to meet the strict requirements of customers, the crusher has been extended to the PEX jaw crusher under the constant innovation of engineers, which is also known as the fine crusher.

This crusher has been widely used in mining, building materials, roads, railways, water conservancy, and chemical industries, as well as crushing various soft and hard ores with a compressive strength of 350MPa and a diameter of 500-1800 mm, such as river pebble, granite, basalt and other metal ores. The PE jaw crusher has a significant crushing efficiency with a large crushing ratio and a high output, which is favored by the majority of users.

This crusher is used in almost all minerals and mining industries. Whether dealing with metal ore or non-metallic ore, we can offer you a solution that reduces the size, for a series of our products are available for crushing, downsizing, beneficiation with reliable design and versatility for your application. PE jaw crusher can process 1-2,000 tons of ore per hour, so in Africa, many gold mines choose our Jaw Crusher as the primary crushing of their entire beneficiation line.

In September last year, Mr. Brighton from Zimbabwe found us and consulted us about the mineral processing equipment that he needed equipment that could process 10 tons of gold ore per hour whose feed size was 200 mm and discharge size was 7-30 mm.

According to the project information he provided, our technical manager designed a complete production line for him, including jaw crusher, cone crusher, ball mill, spiral classifier, flotation machine, and dryer. In this situation, a jaw crusher must be used for primary crushing in order to achieve the required discharge size, granularity, and higher quality end product.

As a result, the technical manager proposed a PE-250400 jaw crusher for Mr. Brighton to meet his requirements for incoming and outgoing materials. This type of jaw crusher can reduce 5-21 tons of ore per hour which is suitable for his requirements now, even the future when he wants to expand the production. Compared with raw gold ore, the gold ore processed by the mineral processing equipment is more expensive and more versatile in the world, and also more attractive to the customers for higher profits it brings.

Many infrastructure industries have a solid foundation, which is a variety of rock aggregates. Recognizing that the widespread use of these aggregates has prompted us to continuously create and improve our rock crushing equipment to help boost your production, reduce maintenance times and increase overall operational efficiency.

Aggregates that are crushed from large stones are essential raw materials in construction, transportation, and other infrastructure construction. Therefore, the role of crushing equipment in the aggregate crushing production line is critical.

Our PE jaw crusher is commonly used throughout the industry to reduce the pieces into the required sizes and to impart fineness to the broken material with high quality and efficiency. It can make rocks, sandstones, river pebbles, and other materials into various granularity that meet the requirements of construction sand with high compressive strength, being more in line with building requirements, and characteristic of improving building quality.

In June 2018, a construction company from Ethiopia found our promoters, because they were about to carry out the road construction project and hoped to crush the basalt raw materials (250 mm to 500 mm) into the sizes of 00, 01, 02, 03 (00 stands For fine below 4 mm the dust; 01 between 4 mm to 8 mm; 02 stands for 20 mm; 03 stands for 20 mm to 32 mm.), and due to the large amount of work, it is necessary to crush 200 tons of basalt per hour.

Based on customer's information, we had customized basalt crushing solutions for customers, including jaw crusher, cone crusher, sand washer and circular vibrating screen, among which, the PE-7501060 jaw crusher model can meet all the requirements of customers, which means that the crushed basalt had a uniform particle size and was very suitable for road construction.

PE jaw crusher is widely used in coal mine operations and attractive to customers because of its uniform end granularity, lower noise, less dust, and less pollution. Under strict environmental regulations, a good deal of coal mine projects has been suspended due to large pollution, which has seriously hindered the development of mining plants, resulting in low efficiency in major mining areas.

However, we have actively responded to the call for environmental protection by using advanced technologies and new materials to manufacture this crusher to meet national environmental standards. Coupled with PE's superior discharge size and simple operation characteristics, our company has been chosen by many users.

The rapid development of society has led to the production of many construction wastes. The original construction waste is not treated, not only occupies the land, but also causes pollution of rivers. The application of the crusher not only solves environmental pollution but also brings a high economic benefit for investors by recycling the construction waste into valuable materials.

The brand is shaped by innovation. This new generation of jaw crushers has redefined itself with advanced technical design, which can improve material flow and production in quarrying, mining, demolition and recycling applications, and for which this machine has become a deal solution for large manufacturers and crushing operators.

This crusher adopts the most advanced crushing technology and digital component processing equipment to make the internal structure precise, thus there is no dead zone in the deep cavity crushing, which could avoid blockage effectively, improving the production efficiency.

Continuous collaboration with laboratories enables state-of-the-art technological innovations in the durability of wear parts and the reliability of mechanical components, extending the service life of the whole set of equipment, among which, the movable plate is made of high-speed steel castings, and the eccentric shaft is processed by forging blanks, which makes the equipment more reliable, efficient and durable.

The PE series jaw crusher can be driven by a diesel generator and an electric motor. The diesel enters the generator to drive the belt and the pulley, and the eccentric shaft moves the movable plate up and down for the operation. Or use electricity for operation.

But in general, customers will still prepare a backup generator to prevent the mine from being too far away from the city. The power of a PE-400600 crusher generator is 30KW, and the cost is 37-40 yuan if using 30KW electricity (it is different in different countries). The specific generator to be configured is determined by the customer's site conditions and budget.

The performance and the overall structure of the crusher have been improved by reasonable design, thus easy operation and convenient maintenance increase the plant's global availability and profitability.

The development of the PE series jaw crusher demonstrates that the manufacturer has been focusing on customer success by combining the best technology solutions and providing reliability to allow our customers to focus on their own operations.

With professional production technology and export experiences for 40 years, we understand exactly the different needs of customers in various countries. And PE series products are mainly exported to India, Brazil, Vietnam and other countries.

We also have established a sandstone equipment research institute, established an international advanced production line and a first-class modern testing base to R&D the innovative equipment, making the PE series jaw crusher closely fit the customer's actual production needs.

River pebble is a kind of purely natural stone which loses its irregular angle by gravel collision under the action of crustal movement and running water. It is buried in the ground and silenced for millions of years together with the sediment.

There are many pebbles in the sea, smooth, round, and the color more abundant. Therefore, the demand is larger and the price is higher. The Philippines is strategically surrounded by the sea with many rivers on the island, so it is rich in pebble resources.

River pebble has natural characteristics of compression, wear and corrosion resistance which is ideal for green building and important material for making pebble sand after the procedures of crushing, sand making, and screening. It is widely used in the engineering field of water conservancy and hydropower, high-grade highways, bridges, airport runways, municipal works, and high-rise buildings, also as an aggregate for concrete. The pebbles have a high application value for its rich resources and low collection cost.

In March 2017, our promoters contacted a quarry manager from Mindanao, the Philippines on a social platform. The manager told us that he was looking for a suitable machine to reduce the 25-40 cm river pebble to Sand1. -5 mm and 1/4, 1/2, 3/4 stones (6.35 mm, 12.7 mm, 19.05 mm), and expected to process 200 tons per hour.

He also said that he would not start his project before he solved the problem of what kind of equipment is suitable for him, for his mining site was on a remote beach on the island which had rich pebble resources, but the temperature was high, and the rainy season was coming, so the customer worried that the equipment could not withstand the high temperature and humid environment.

After understanding his situation, we designed a sandstone production line suitable for him, including ZSW490110 vibrating feeder, PE7501060 jaw crusher, conveyor, HXCYS400 cone crusher, 3YK2870 vibrating screen, XS3020 sand washer, etc.

Knowing that the customer's site was not very steep, Hongxing advised a fixed machine for him which has a stable operation and less investment than the mobile crusher plant. As for the question that whether can the machine work normally under the high-temperature and humid environment? The answer is yes. But the customer must do the daily maintenance of the machine that we would teach them.

Rainwater enters the inside of the machine, which will corrode the inside of mechanical parts to accelerate mechanical wear and increase mechanical failure. It always causes the bigger problem because of its invisible corrosion, so the operators should take effective measures according to local weather conditions and air pollution at that time to reduce the impact of chemical corrosion on machinery, with emphasis on preventing rainwater from invading machinery. If necessary, you can build a plastic greenhouse or cover.

Every part has its own normal range of temperature. It is necessary to check every the value on various thermometers frequently for its smooth working, otherwise, the machine will be damaged. There are two cooling systems should be paid more attention. For water-cooled machinery, it must be checked before daily work to add cooling water, and for air-cooled machinery, the dust on the air-cooled system should be cleaned regularly to ensure smooth air circulation.

The PE jaw crusher can process materials with a side length of 100-500 mm with the characteristics of large crushing ratio and producing cubic end materials. The PE7501060 jaw crusher is used as the primary crushing equipment for the river pebble with the feed size of 25-40 cm. The big size of the material must be crushed into different granularity by the jaw crusher for secondary crushing.

And the selection is just like this: raw and bigger materials - vibrating feeder - jaw crusher (the primary crushing) - belt conveyor - cone crusher (the secondary crushing) - belt conveyor - vibrating screens (different sizes of end materials). Different granularity can meet the requirements of different specifications of customers.

In the past two years, our crushing equipment has been running smoothly in this mining site. We also conduct regular return visits to the equipment there and help customers with any problem in time. We will also go to the customer's location at any time they need us to inspect and maintain the equipment on the spot, hoping to help our valued Filipino customers reduce losses and expand benefits.

The customer also gave a very high evaluation of our equipment and services. The manager once told the technical manager: "Before you find me, I have contacted several companies from all over the world, but very few of them puts me in the place to consider for me. Only you have tirelessly helped me customize the machine and production plan, and led the technicians to give us professional guidance in production debugging. I am very grateful to you that you helped me complete my project. Now the equipment is running well, and the sand and gravel produced are sold to the construction company. My success is inseparable from your help and guidance."

jaw crusher - stone crushing equipment - china largest mining machinery

jaw crusher - stone crushing equipment - china largest mining machinery

1. This series of small jaw crushers as a type of double toggle jaw crusher are mainly used for medium and fine crushing of ore and rocks with medium and high hardness in the industries of metallurgy, mine, chemical industry, cement, construction, refractory material and ceramics.

2. The PE jaw crusher or small jaw crusher is a suitable double toggle jaw crusher for crushing the ores with compressive strength not less than 320MPA. The materials of maximum blocks to be crushed must not be more than the dates listed in the technology parameter.

1. Fixed body of the small jaw crusher: The main component of the fixed body is rack, which has two manufacturing engineers: carbon steel casting rack and carbon steel plate welded rack. Welded rack uses the reinforced stiffener on the basis of the original cast rack, and can achieve the same effect as casting rackthrough strict quality control and specific process requirements. In order to prevent the serious wear and tear of the lateral wall, crushing chamber is equipped with shield on the left and right side, which can be easily replaced.

2. Rotating body: This pe jaw crusher as a kind of double toggle jaw crusher is composed of moving jaw, eccentric shaft, bearings, pulleys and other parts, and it is the main part of the jaw crusher transmission and endurance.

3. Adjustment device: It is used to adjust the size of discharging mouth and control the discharging granularity. Hongxing jaw crusher has two forms: long wedge type and plunger gasket type with convenient and flexible adjustment, can achieve stepless adjustment.

analysis of the single toggle jaw crusher force transmission characteristics

analysis of the single toggle jaw crusher force transmission characteristics

Moses Frank Oduori, David Masinde Munyasi, Stephen Mwenje Mutuli, "Analysis of the Single Toggle Jaw Crusher Force Transmission Characteristics", Journal of Engineering, vol. 2016, Article ID 1578342, 9 pages, 2016. https://doi.org/10.1155/2016/1578342

This paper sets out to perform a static force analysis of the single toggle jaw crusher mechanism and to obtain the force transmission characteristics of the mechanism. In order to obtain force transmission metrics that are characteristic of the structure of the mechanism, such influences as friction, dead weight, and inertia are considered to be extraneous and neglected. Equations are obtained by considering the balance of forces at the moving joints and appropriately relating these to the input torque and the output torque. A mechanical advantage, the corresponding transmitted torque, and the variations thereof, during the cycle of motion of the mechanism, are obtained. The mechanical advantage that characterizes the mechanism is calculated as the mean value over the active crushing stroke of the mechanism. The force transmission characteristics can be used as criteria for the comparison of different jaw crusher mechanism designs in order to select the most suitable design for a given application. The equations obtained can also be used in estimating the forces sustained by the components of the mechanism.

The literature on kinematics and mechanism design identifies three tasks for which linkage mechanisms are commonly designed and used, namely, function generation, motion generation, which is also known as rigid body guidance, and path generation [13]. Way back in 1955, Freudenstein, who is widely regarded as the father of modern Kinematics of Mechanisms and Machines, introduced an analytical method for the design of a four-bar planar mechanism for function generation [4]. Wang et al. presented a study on the synthesis of planar linkage mechanisms for rigid body guidance [5]. An interesting design and application of a planar four-bar mechanism for path generation was reported by Soong and Wu [6]. In general, the use of linkage mechanisms involves the transmission and transformation of motions and forces. In practical applications, linkage mechanisms appear to be more commonly designed and used for the transmission and transformation of motions rather than forces. In such cases, the transmitted forces are quite small.

The jaw crusher happens to be an example of a planar linkage application that is designed and used for the transmission and transformation of motions but also has to transmit, transform, and apply the large forces that are required to crush hard rocks by compression. Therefore it is important to understand the force transmission characteristics of the jaw crusher mechanism and to be able to use them for sound mechanical design of the crusher.

Today, the most commonly used types of jaw crusher are the single toggle and the double toggle designs. The original double toggle jaw crusher was designed by Eli Whitney Blake in the USA in 1857 [7]. The motion of the swing jaw in a double toggle crusher is such that it applies an almost purely compressive force upon the material being crushed. This minimizes wear on the crushing surfaces of the jaws and makes the double toggle jaw crusher suitable for crushing highly abrasive and very hard materials. Even today, the Blake design, with some comparatively minor improvements, can still be found in mines and quarries around the world.

The single toggle design, which was developed between the 1920s and the 1950s, is a simpler, lighter crusher [7]. Its swing jaw has a rolling elliptical motion such that it applies a compressive as well as a rubbing force on the material being crushed. This has a force-feeding effect that improves the throughput of the device, but it also tends to cause rapid wear of the crushing surfaces of the jaws. However, the single toggle jaw crusher has a lower installed cost, as compared to the double toggle design. Improvements in materials and design have made the single toggle jaw crusher more common today as the primary crusher in quarrying operations [8]. According to Carter Russell [9], in 1999 sales of the single toggle jaw crusher exceeded those of the double toggle jaw crusher by a factor of at least nine to one.

This paper performs a static force analysis of the single toggle jaw crusher mechanism. As a result of this analysis, a characteristic force transmission ratio, which may be regarded as a mechanical advantage of the mechanism, is derived. This ratio can be used as a criterion for the comparison of different jaw crusher mechanism designs, with a view to selecting the most suitable design for use in a given application.

Over time, several authors have addressed the static force analysis of the double toggle jaw crusher mechanism. Among the earlier of such efforts is that of Ham et al. [10], who performed a static force analysis of the double toggle jaw crusher mechanism in order to determine the input turning moment that would be required to overcome a known crushing resistance of the material being crushed. They used a graphical method to carry out the analysis.

In discussing linkages, Martin [11] featured the double toggle jaw crusher mechanism as an example of a machine that uses the toggle effect to obtain a large output force that acts through a short distance, but he did not perform a static force analysis of the mechanism.

Erdman and Sandor [1] presented the determination of the mechanical advantage of a double toggle jaw crusher mechanism, as an exercise problem to be solved by(1)the method of instant centres, which is essentially a graphical method;(2)an analytical method that utilized complex number representation of vectors.Norton [2] also discussed the mechanical advantage of linkage mechanisms and explained the toggle effect by the use of a jaw crusher mechanism of the Dodge type [8].

More generally, Lin and Chang [12] addressed the issue of force transmissivity in planar linkage mechanisms. They derived and proposed a force transmissivity index (FTI) that considered the power flow path from the input linkage to the output linkage. They calculated the effective force ratio (EFR) as the ratio of the sum of actual power transmitted at each of the linkage joints in the power flow path to the sum of the maximum possible power that could be transmitted along the same power flow path. They then obtained the FTI as the product of the EFR and the mechanical advantage of the mechanism, thus taking into account the effect of the external load acting on the mechanism. They compared their results to other indices of force transmissivity, such as the Jacobian matrix method [13] and the joint force index (JFI) [14], and found their FTI to be more accurate. Furthermore, the Jacobian matrix method does not consider the effect of the external load while the JFI does not consider the power flow path in the mechanism.

The method used by Lin and Chang [12] involves a static force analysis and the determination of velocities at the joints within the power flow path. Subsequently, Chang et al. [15] extended and applied this method to parallel manipulators, defined, and proposed a mean force transmission index (MFTI). The presentation here will perform a static force analysis and obtain the mechanical advantage of the single toggle jaw crusher mechanism, from first principles.

According to Ham et al. [10], analysis of forces in any machine is based on the fundamental principle which states that the system composed of all external forces and all the inertia forces that act upon any given member of the machine is a system that is in equilibrium.

For a planar mechanism, such as the single toggle jaw crusher, it is customary to treat the forces as if they are coplanar, at least in the initial analysis. The effects of the offsets between the planes of action of the forces can then be revisited at a later stage of analysis and design. The assumption of coplanar forces will be employed in this presentation.

In the static force analysis of a machine, the forces arising due to the accelerations of the machine members are neglected. These forces are taken into account in a dynamic force analysis, which can be done, meaningfully, after the forms and masses of the machine members have been determined. Frictional forces may be taken into account in a static force analysis [16], but in the present case, it shall be assumed that the use of antifriction bearings in the revolute joints reduces frictional forces to negligible levels.

Furthermore, this presentation aims to obtain an indicator of the efficacy of force transmission, in the single toggle jaw crusher, that may be attributed to the structure of the mechanism per se. Therefore, frictional and inertia forces may be regarded as extraneous to this purpose and will not be included in this analysis.

In a planar four-bar mechanism with four revolute joints, which can be denoted by or , the efficacy of force transmission has often been expressed by what is known as the transmission angle [2, 3, 11, 17]. This works well enough if, for instance, the mechanism is a crank-and-rocker, in which the crank is the input link and the rocker is the output link. Then, the transmission angle becomes the acute angle between the rocker and the coupler, and, indeed, its value indicates the efficacy of force transmission in the mechanism.

The single toggle jaw crusher mechanism can be modelled as a planar mechanism, as shown in Figure 1. However, in this mechanism, it is the coupler that is the output link and the transmission angle, as defined in the above cited literature, fails to be a suitable indicator of the efficacy of force transmission. Therefore, a better indicator of the efficacy of force transmission in the single toggle jaw crusher is sought in this paper.

Erdman and Sandor [1], Norton [2], and Shigley and Uicker Jr. [3] presented methods for determining the mechanical advantage of planar mechanisms that make the assumption of 100% mechanical efficiency for the mechanism and find the mechanical advantage of the mechanism to be inversely proportional to the output-to-input angular velocity ratio. The presentation by Shigley and Uicker Jr. [3] defined the mechanical advantage as the ratio of the output torque to the input torque, which led to a slightly different expression for the mechanical advantage, as compared to Erdman and Sandor [1] and Norton [2], who defined mechanical advantage as the ratio of output force to input force.

The methods presented by Erdman and Sandor [1], Norton [2], and Shigley and Uicker Jr. [3] give no indication of the actual forces that are sustained by the members of the mechanism, knowledge of which would be necessary at the design stage.

The method used in this paper includes the following:(i)A static force analysis that neglects the frictional and inertia forces is performed.(ii)All the forces and moments are assumed to be coplanar.(iii)The analysis proceeds by considering the equilibrium of the forces acting at the moving joints of the mechanism and relating them to the input torque as well as the load torque. This may be compared to the method presented by Abhary [18].The method used here is systematic and therefore clear and simple to follow and to use. As a result of the analysis, a characteristic mechanical advantage of the single toggle jaw crusher mechanism is obtained, which may be used as a criterion for selecting such mechanisms.

In the kinematical model of the single toggle jaw crusher, which is illustrated in Figure 1, the eccentric shaft is modelled as a short crank, of length , that continuously rotates about a fixed axis, at . The swing jaw is modelled as the coupler link , of length , which moves with a complex planar motion that has both rotational and translational components. The toggle link is modelled as the rocker , which oscillates about the fixed axis at . The fixed jaw is considered to be an integral part of the frame of the machine.

Oduori et al. [19] analysed the kinematics of the single toggle jaw crusher, as modelled in Figure 1, and found the following expression:Cao et al. [20] used the dimensional data for a PE single toggle jaw crusher, as shown in Table 1.

In the cycle of motion of the single toggle jaw crusher mechanism, two phases, known as the toggle phases, are of particular interest. In each of the toggle phases, the crank and the coupler link fall on a single straight line. Therefore, the toggle phases occur when and when . For the first toggle phase, equation (2) can be reduced to the following:Equation (3) is readily solved to give for the first toggle phase.

In performing the static force analysis it shall be assumed that the masses of the links, as well as friction forces, are negligible. The effects of these forces can be considered at a later stage in the design of the mechanism. In Figure 2, is the driving torque, applied at the crank axis , to drive the crank and the entire crusher mechanism. is the torque, acting about the axis of joint , due to the resistance of the feed material against being crushed. , , and are the forces in links 2, 3, and 4, respectively, and they are all assumed to be compressive. The system of forces and moments is assumed to be in equilibrium in every phase of motion of the mechanism.

Let us start by considering the crank. Static force analysis is based on the assumption that there are no accelerations in the mechanism. Referring to Figures 1, 2, and 3, the equilibrium of moments acting on the crank, about the fixed joint , leads to the following result:Next let us consider the coupler. The equilibrium of forces at joint leads to the following:From equations (5) and (6), it follows thatThe statement in equation (7) is illustrated in Figure 4.

Moreover, it should be evident from Figures 3 and 4 thatNow, in Figure 3, by considering the equilibrium of all the forces acting upon the coupler, the following is obtained:Moreover, in Figure 3, the equilibrium of moments acting on the coupler, about the joint , leads to the following result:From equations (9) and (10), it follows thatA relationship between and can now be obtained from equations (7) and (11), as follows:Equation (12) is in dimensionless form. The left-hand side of this equation can be regarded as a force transmission ratio that compares the nominal transmitted force, , to the nominal input force, . This ratio is an indicator of the theoretical force transmission potential for any given phase of motion of the mechanism.

For a given crusher mechanism, the values of and can be determined from purely kinematical considerations, by the use of (1) along with the dimensional data of the mechanism, and then the value of the right-hand side of (12) will be determined.

Using the dimensional data of the mechanism, given in Table 1, along with given values of , the corresponding values of were computed and then used in (12) to determine the corresponding force transmission ratios, for one and a half cycles of motion of the crank. The results are plotted in Figure 5.

The first spike in Figure 5 indicates the great amplification of the crushing force that occurs at the first toggle position, which corresponds to a crank angle of about . Theoretically, the crushing force amplification should be infinite at this toggle phase. Moreover, there occurs an abrupt reversal of the sign of the force transmission ratio from positive to negative, at this toggle phase. The second spike in Figure 5, which is also accompanied by a reversal in the sign of the force transmission ratio, occurs at a crank angle of about . This spike corresponds to the second toggle phase of the mechanism.

The great amplification of transmitted force, accompanied by the abrupt reversal of the sign of the force transmission ratio, at each of the toggle phases, may be compared with the phenomenon of resonance, in mechanical vibrations, which also features great amplification of the responding motion, accompanied by a reversal of the phase between the forcing and the responding functions.

As the crank rotates from to , the crusher would be on the idle stroke with the swing jaw being retracted and no work being done in crushing the feed material. This is evidenced by the negative values of the force transmission ratio, between these two angular positions of the crank, in Figure 5. Useful work is done as the crank rotates from to , in a succeeding cycle of motion of the crank. Thus, during each cycle of motion of the crank, the useful working stroke of the mechanism lasts for about of rotation of the crank, which is very slightly greater than half the cycle of motion of the crank. On the other hand, during each cycle of motion of the crank, the idle stroke lasts for of rotation of the crank, which is very slightly less than half the cycle of motion of the crank.

Thus, the mechanism has a quick return feature that is hardly noticeable since the crushing stroke lasts for 50.37% of the complete cycle of its motion, while the idle stroke lasts for 49.63% of the complete cycle of the motion of the mechanism.

In the preceding section, we have seen that the crushing stroke lasts for only about 50% of each complete cycle of motion of the single toggle jaw crusher. For the other 50% of the complete cycle of motion, the swing jaw is being retracted in preparation for the next crushing stroke.

Moreover, in Figure 5, it can be seen that the force transmission ratio varies from a very high value, at the beginning of the crushing stroke, that initially falls very rapidly and then levels off to reach a minimum value of less that unity (about 0.6), about halfway through the crushing stroke. The latter half of the crushing stroke appears to be a mirror image of the earlier half, in which the force transmission ratio first rises gradually and then spikes to a very high value at the end of the crushing stroke. Sample values of the force transmission ratio during the useful crushing stroke are given in Table 2.

The fact that the crushing stroke commences with a very high value of the force transmission ratio is advantageous when crushing brittle material, which is often the case. Since brittle materials fracture without undergoing significant deformation, actual crushing of brittle materials in a single toggle jaw crusher would occur soon after commencement of the crushing stroke, where the force transmission ratio is high.

According to Chinese jaw crusher manufacturers data [21], the PE 400 by 600 single toggle jaw crusher has 30kW motor power and an input eccentric shaft speed of 275rpm or 28.7979 radians per second. Assuming that the input speed is constant, the input torque is found to be 1.0417kNm. By using this information, along with the data in Table 1 and (12), the transmitted torque, in kilonewton-metres, can be estimated to be the following:The above calculation assumes a 100% power transmission efficiency. Equation (13) was used to calculate the values of the transmitted torque that are given in Table 3.

The above calculations reveal that the minimum value of the transmitted torque will be about 55 times as big as the input torque, with the theoretical maximum value being infinity. This is why a material that cannot be crushed will lead to breakage of the toggle link.

A force transmission ratio that would characterize the single toggle jaw crusher was calculated as the mean value of the force transmission ratio over a complete useful crushing stroke, which does not include the retraction stroke.

According to the Mean Value Theorem of the integral calculus [22], if a function is continuous on the closed interval , then the mean value of for that interval can be determined as follows:In determining the characteristic mechanical advantage, the mean value of the force transmission ratio was determined as follows:The integral in (15) was evaluated numerically by the use of the composite trapezoidal rule [23]. For , taken at one-degree intervals, the integral was evaluated as follows:For , taken as three unequal intervals, the integral was evaluated as follows:In (16) and (17), , for instance, is the value of for the case where . The total integral was then determined as follows:Thus, the characteristic mechanical advantage was determined as follows:From the preceding analysis, the force transmission characteristics for the PE 400 by 600 single toggle jaw crusher mechanism are summed up in Table 4.

The minimum force transmission ratio occurs at about the midpoint of the active crushing stroke, while the maximum force transmission ratio occurs at the end of the active crushing stroke. However, the force transmission ratio at the beginning of the active crushing stroke is also very highabout 74% of the value at the end of the crushing stroke.

Given a number of different mechanism designs, the characteristics given in Table 4 may be calculated for each candidate mechanism and used, among others, as criterion in the selection of a suitable jaw crusher mechanism for a given application.

A static force analysis of the single toggle jaw crusher mechanism was carried out. The method used is systematic, clear, and simple to follow and to use. As a result of the static force analysis, some force transmission characteristics of the single toggle jaw crusher mechanism were obtained. The analysis can also be used to determine the forces that are sustained by each of the components of the single toggle jaw crusher mechanism, provided that the values of the input torque and load torque are known.

An expression for the force transmission ratio of the single toggle jaw crusher mechanism was derived. By using the dimensional data of the PE 400 by 600 jaw crusher, the maximum value of the force transmission ratio was found to be about 3268, the minimum value of the force transmission ratio was found to be about 0.61, and the mean value of the force transmission ratio was found to be about 10.6. These metrics can be used as criteria in the selection of a suitable mechanism design to be used in a given application, out of different alternatives.

The force transmission ratio was found to be very high at the beginning of the active crushing stroke, dropped off rapidly and then levelled off at about the minimum value, remained at the low value for about two-thirds of the active crushing stroke, and then rose rapidly to a very high value at the end of the active crushing stroke. The fact that the force transmission ratio is very high at the beginning of the active stroke is advantageous in crushing brittle materials which fracture without undergoing appreciable deformation.

Copyright 2016 Moses Frank Oduori et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

jaw crusher - eastman rock crusher

jaw crusher - eastman rock crusher

Jaw crusher is a compression style rock crusher, useful in crushing the medium-hard to very hard material into a smaller particle size at primary crushing stage in the crushing circuit.Applicationsmining, quarry, construction waste recycling, aggregate making, etc.MaterialsLimestone, cobblestone, cobblestone, quartz, basalt, iron ore, granite, shale, sandstone, gypsum, and a variety of ores.

Eastman provides you with complete rock crushers and full list of components, original jaw crusher parts, form and function are a perfect fit.If your equipment breaks down, the productivity of the whole factory will be threatened. Critical wear parts are shipped with the goods to ensure they are available when you need them and to reduce maintenance time.Wear parts:

jaw crusher - jxsc machine

jaw crusher - jxsc machine

Application Jaw crushers mainly used at the primary stage to reduce hard and brittle materials size for the next crushing stages, widely applied in the mining, road aggregate, quarry, sand and gravel industry.

Whats a jaw crusher?A jaw crusher is a compression type crusher, usually used as a primary crusher set at the very front of the ore or rock crushing plant to reduce hard rock size. Jaw rock crusher commonly in double-toggle jaw crusher, composed of a fixed jaw and moving jaw, the discharging stone particle size can be controlled by changing the discharge port. Owing to its high crushing capacity and hard material efficiency, jaw crushers are a good alternative to primary gyratory crushers. How many types of jaw crusher?single toggle jaw crusher and double toggle jaw crusher; industrial jaw crusher and laboratory small jaw crusher; diesel engine jaw crusher; hydraulic jaw crusher; stationary, mobile jaw crusher, track mounted jaw crusher; PEX / PE jaw crusher. Whats the jaw crusher size and capacity?The size of a jaw crusher is determined by the rectangular or square opening (feeding port) at the top of the jaws. As shown in the below sheet, different gapes are designed for coarse crushing and fine crushing applications, PE Jaw Crusher (coarse crushing), PEX Jaw Crusher (fine crushing). Jaw crusher plantJXSC can design reasonable jaw crusher plant depends on your application requirements.

Jaw crusher partsflywheel, pitman, hydraulic cylinder, toggle plate, eccentric shaft, fixed jaw, moving jaw, etc. Jaw crusher working principleMotor drive belt and pulley, the eccentric shaft pushes the movable jaw against the fixed jaw, generate the crushing action, compresses the material to the desired size. The crushed materials are discharged from the discharge port, the bottom gap of the crusher controls the discharge particle size. Jaw crusher manufacturerJXSC manufactures various types of rock crushing machines that are designated with the maximum efficiency, safety, productivity for mining, aggregates, crushed stone production applications, alternative for Nordberg, Sandvik jaw crusher. JXSC jaw crusher machine for sale, contact us to get the best jaw crusher price. Jaw crusher priceDo you need a single jaw stone crusher or crushing plant? The price is determined by the crushing material, capacity. You may interest in the Jaw crusher specification and cost, how to select a jaw crusher? What is the difference between jaw crusher and impact crusher? What jaw crusher spare parts we supply? Just contact us, engineer answer online. More may you likeJaw Crusher VS Impact Crusher,Jaw Crusher VS Gyratory Crusher, Single Toggle vs Double Toggle Jaw Crusher, Jaw Crusher Operation.

pe jaw crusher

pe jaw crusher

This type of crusher has a long history and belongs to traditional crushing equipment. Its motor drives the eccentric shaft to rotate via V-belt pulley and movable jaw to carry out a periodical complex pendular movement to generate crush capacity. There are two types: coarse crusher and fine crusher.

With the features like simple structure low price reliable operation and convenient adjustment of discharging opening it is very suitable for crushing the damp ore and the ore with a large content of clay with relatively coarse crushing grain size.

Since the end of the 19th century, jaw crusher has been used in ore crushing and aggregate processing industries for more than a hundred years. Rhythers PE Jaw Crusher is developed based on century-old accumulations. So, performances of PE Jaw Crusher is totally reliable.

Allowing for the operating conditions of jaw crushers are relatively severe and the quick-wear parts may be consumed rapidly, Rhyther thought deeply in selecting materials for core parts and adopted high-quality high-manganese steel casting which is most recognized in the world at present. This casting greatly extends the service life of core parts and effectively avoids too many shutdowns and maintenance tasks.

When materials which cannot be crushed fall into the jaw crusher and a load of crushing machine exceeds the normal level, the elbow plate designed by Rhyther can realize automatic fracturing and then stop the jaw crusher, thus avoiding the damage of the entire machine and guaranteeing the production safety.

Even though the structure of PE Jaw Crusher is relatively simple, all processing procedures require precise processing, for example: only precise machining, heat treatment and flaw inspection can guarantee the eccentric shaft to possess sufficient strength and rigidity; only precise blanking can guarantee the weights and structures of flywheel and grooved wheel to enhance the operating balance of the jaw crusher. For this purpose, Rhyther formulates strict quality inspection procedures and uses advanced machining equipment to deliver perfect jaw crushers.

Rhyther, whose businesses cover production and sales, takes responsibility for every machine produced by ourselves. We can offer customers technical services about products and original spare parts to ensure the worry-free operation.

The motor transmits power through belt, drives the moving jaw do periodic motion to the fixed jaw surround the eccentric shaft. The angle between toggle plate and moving jaw increases when moving jaw moves up. So the moving jaw closes to the fixed jaw, and the staff will be crushed in multiple ways. The angle of Jaw crusher between toggle plate and moving jaw decreases when moving jaw moves down, the moving jaw of jaw crusher moves away from fixed jaw by the pulling force of rod and spring, the products after crushing will be discharged from the outlet of Jaw crusher.

jaw crusher for sale | jaw crusher | jaw crusher manufacturer

jaw crusher for sale | jaw crusher | jaw crusher manufacturer

The jaw crusher is suitable for crushing various ores or rocks with a compressive strength limit below 250 MPa. Widely apply for mining, cement and concrete industries. It is mainly used as coarse crusher and medium crusher in mines, building materials and infrastructure. The jaw cement crusher produced by AGICO Cement has the characteristics of simple structure, easy manufacture, reliable operation, long service life and convenient maintenance.

The working part of the jaw cement crusher is two jaws, one is a fixed jaw, the vertical (or the upper end is slightly inclined) fixed on the front wall of the body, and the other is the movable jaw, the position is tilting, forming a large and small crushing cavity (working cavity) with the fixed jaw. The movable jaws periodically reciprocate against the fixed jaws, sometimes separated and sometimes close. When they are separated, the material enters the crushing chamber, and the finished product is discharged from the lower portion; when they are close, the material contained between the two jaws is crushed by bending, bending and splitting.

Using world-class manufacturing technology, crusher is made the highest-end materials. For example, the dynamic boring assembly is made of high-quality steel castings, and the heavy-duty eccentric shaft is processed by forging blanks, which makes the equipment extremely reliable and durable.

Using finite element analysis technology, the integral cast steel bearing housing ensures complete mating with the frame, greatly enhancing the radial strength of the bearing housing and enabling the equipment to have higher strength.

According to the width of the feed port, it is divided into three types: large, medium and small jaw crusher. The feed port width is greater than 600MM for the large machine, the feed port width is 300-600MM for the medium machine, and the feed port width is less than 300MM for the small machine.

When the jaw cement crusher is working, the movable jaws periodically reciprocate the fixed jaws, sometimes close, and sometimes leave. When approaching, the material is crushed by crushing, splitting, and impacting between the two jaws; when leaving, the material that has been broken is discharged from the discharge port by gravity. When feeding the jaw crusher, the material is poured from the top inlet into the crushing chamber containing the molars, which force the material to the wall of the chamber and break it into smaller stones. Supporting the movement of the caries is an eccentric shaft that runs through the fuselage frame. The eccentric motion is generated by a pulley driven by a pulley fixed to the shaft end through a motor, and the flywheel at the other end of the shaft acts as a balance. Pulleys, flywheels and eccentric shaft support bearings, which must withstand large shock loads, abrasive sewage and high temperatures.

The development, design, production and sales of jaw crusher are all by own, basically sold at the factory price, therefore, our jaw crusher price is very affordable. For the specific type of jaw crusher price, you can click the business button or phone button on the right of the page for free quotation, thank you for your support and trust!

The discharge particle size of our jaw crusher is adjustable, for example, pe-800 1060 jaw crusher discharge particle size can be adjusted between 130-190mm according to your needs, and a device can meet a variety of crushing requirements!

AGICO CEMENT always put the benefits of users in the first place, all jaw crusher bought from our company can enjoy comprehensive after-sales service, including equipment installation, commissioning, trial operation, 1 year warranty, life-long maintenance and other services.

The jaw crusher is suitable for crushing various ores or rocks with a compressive strength limit below 250 MPa. Widely apply for mining, cement and concrete industries. It is mainly used as coarse crusher and medium crusher in mines, building materials and infrastructure. The jaw cement crusher produced by AGICO Cement has the characteristics of simple structure, easy manufacture, reliable operation, long service life and convenient maintenance.

The working part of the jaw cement crusher is two jaws, one is a fixed jaw, the vertical (or the upper end is slightly inclined) fixed on the front wall of the body, and the other is the movable jaw, the position is tilting, forming a large and small crushing cavity (working cavity) with the fixed jaw. The movable jaws periodically reciprocate against the fixed jaws, sometimes separated and sometimes close. When they are separated, the material enters the crushing chamber, and the finished product is discharged from the lower portion; when they are close, the material contained between the two jaws is crushed by bending, bending and splitting.

Using world-class manufacturing technology, crusher is made the highest-end materials. For example, the dynamic boring assembly is made of high-quality steel castings, and the heavy-duty eccentric shaft is processed by forging blanks, which makes the equipment extremely reliable and durable.

Using finite element analysis technology, the integral cast steel bearing housing ensures complete mating with the frame, greatly enhancing the radial strength of the bearing housing and enabling the equipment to have higher strength.

According to the width of the feed port, it is divided into three types: large, medium and small jaw crusher. The feed port width is greater than 600MM for the large machine, the feed port width is 300-600MM for the medium machine, and the feed port width is less than 300MM for the small machine.

When the jaw cement crusher is working, the movable jaws periodically reciprocate the fixed jaws, sometimes close, and sometimes leave. When approaching, the material is crushed by crushing, splitting, and impacting between the two jaws; when leaving, the material that has been broken is discharged from the discharge port by gravity. When feeding the jaw crusher, the material is poured from the top inlet into the crushing chamber containing the molars, which force the material to the wall of the chamber and break it into smaller stones. Supporting the movement of the caries is an eccentric shaft that runs through the fuselage frame. The eccentric motion is generated by a pulley driven by a pulley fixed to the shaft end through a motor, and the flywheel at the other end of the shaft acts as a balance. Pulleys, flywheels and eccentric shaft support bearings, which must withstand large shock loads, abrasive sewage and high temperatures.

The development, design, production and sales of jaw crusher are all by own, basically sold at the factory price, therefore, our jaw crusher price is very affordable. For the specific type of jaw crusher price, you can click the business button or phone button on the right of the page for free quotation, thank you for your support and trust!

The discharge particle size of our jaw crusher is adjustable, for example, pe-800 1060 jaw crusher discharge particle size can be adjusted between 130-190mm according to your needs, and a device can meet a variety of crushing requirements!

AGICO CEMENT always put the benefits of users in the first place, all jaw crusher bought from our company can enjoy comprehensive after-sales service, including equipment installation, commissioning, trial operation, 1 year warranty, life-long maintenance and other services.

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