sand making machine working principle & wear-resistant parts

sand making machine working principle & wear-resistant parts

In artificial sand making industry, vertical shaft impact crusher, also known as sand making machine, is widely used as the main sand making equipment. There are two kinds of crushing methods of sand making machine: rock on rock and rock on iron. But, many people dont know the differences of these two crushing methods very clearly. In this article, we mainly introduce the 2 crushing methods of sand making machine and their comparison.

In artificial sand making industry, vertical shaft impact crusher, also known as sand making machine, is widely used as the main sand making equipment. There are two kinds of crushing methods of sand making machine: rock on rock and rock on iron. But, many people dont know the differences of these two crushing methods very clearly. In this article, we mainly introduce the 2 crushing methods of sand making machine and their comparison.

The rock on rock crushing method is suitable for crushing abrasive materials with medium hardness and above, such as basalt etc. During the crushing process, materials injected from the impeller impacts the material liner and do not directly contact the metal components of sand making machine, reducing iron consumption and thus reducing maintenance time. The shape of the finished products is good under the crushing method of "rock on rock".

The rock on iron crushing method is suitable for crushing abrasive materials with medium hardness and below, such as limestone etc. Under the rock on iron crushing method, sand making machine has high efficiency.

Sand Making Machine (also known as "Sand Maker") has two feed modes "feed at center" and "feed at center & sides". Generally, feed at center feed mode is used in rock on iron crushing method. In this condition, the vertical shaft impact crusher is used for sand making and has low production capacity. Feed at center & sides" is used in rock on rock crushing method. In this condition, the vertical shaft impact crusher is used for shaping and has high production capacity.

Under the crushing method of rock on rock, materials form a material layer around the impact block and the materials impact on the material layer and are crushed. So, the main wear-resistant part of sand making machine with rock on rock crushing method is impact block.

Under the crushing method of rock on iron, the impact block is replaced by around protecting plate, and the materials directly impact on the around protecting plate and be crushed. So, the main wear-resistant part of sand making machine with rock on iron crushing method is around protecting plate.

jaw crusher working principle

jaw crusher working principle

Jaw crusher is widely used in industrial and mining enterprises , this is because the aircraft structure is relatively simple , and has a large range of models . Jaw crusher is mainly used as the primary crusher. It can be used with mineral processing equipment, gravel ancillary equipment, it also can be used alone.

Structure of jaw crusher mainly include frame, eccentric shaft, big pulley, flywheel, moving jaw, side guard plate, toggle plate, toggle plate back seat, adjusting screw gap, the reset spring, fixed jaw plate and movable jaw etc. , the toggle plate also play a role as insurance bracket . Working part of jaw crusher is two pieces of jaw plate, one is fixed jaw plate (fixed jaw), vertical (or slightly upper camber) fixed in the front wall of the body, and the other is movable jaw plate (moving jaw), location inclined to form the next big small crushing chamber (working chamber) and the fixed jaw.

Jaw crusher for crushing materials work, is the material between the two pieces of jaw plate crushing. Motor drive transmission mechanism driven jaw plate hanging around the shaft relative to the fixed jaw do periodic reciprocating motion, sometimes close, sometimes leaving in the process of moving jaw plate close to the fixed jaw plate, is the material between the two jaw plates pressed on the subject broken, bent and broken fracturing, the process was moving away from the fixed jaw plate, the material has been crushed under the action of gravity, through the discharge port of discharge.

jaw crusher: range, working principle, application - dsmac

jaw crusher: range, working principle, application - dsmac

Jaw crushers are used as primary crushers, or the first step in the process of reducing rock. They crush primarily by using compression. The rock is dropped between two rigid pieces of metal, one of which then moves inwards towards the rock, and the rock is crushed because it has a lower breaking point than the opposing metal piece.

DSMAC Jaw Crushers are configured for primary crushing of even hardest rock. Our Jaw Crushers are crushing without rubbing Minimum dust Oil lubrication, devise having Oil/Grease lubrication system. The company crushers are designed for long life service with minimum maintenance for hard, tough, abrasive material and overload high capacity. The company all products are also well suited to high efficiency, large capacity size operation.

Based on principle of crushing without rubbing Minimum dust Oil lubrication, Law wear parts Gap adjustment and overload protection High capacity, High operational eliability Long service and life time Easy replacement of wear and spare part Wide range of application.

A jaw or toggle crusher consists of a set of vertical jaws, one jaw being fixed and the other being moved back and forth relative to it by a cam or pitman mechanism. The jaws are farther apart at the top than at the bottom, forming a tapered chute so that the material is crushed progressively smaller and smaller as it travels downward until it is small enough to escape from the bottom opening. The movement of the jaw can be quite small, since complete crushing is not performed in one stroke. The inertia required to crush the material is provided by a weighted flywheel that moves a shaft creating an eccentric motion that causes the closing of the gap.

Single and double toggle jaw crushers are constructed of heavy duty fabricated plate frames with reinforcing ribs throughout. Manganese steel is used for both fixed and movable jaw faces. Heavy flywheels allow crushing peaks on tough materials. Double Toggle jaw crushers may feature hydraulic toggle adjusting mechanisms.

k portable crusher-sbm industrial technology group

k portable crusher-sbm industrial technology group

SBM's K Track-type Mobile Crusher is a fully hydraulic track-type mobile crusher developed and completed in order to satisfy higher user demands. It absorbs the foreign advanced mobile crushing technology. SBM's track-type mobile crusher abandons the previous electric driving mode and uses non-strong current modes like hydraulic device to drive and control the traveling of crawler belt and to install and operate equipment, which realizes higher efficiency of energy utilization.

This track-type mobile crusher adopts hydraulic device, which can realize stable and flexible operation and control for equipment installation. The track-type mobile crusher is equipped with load-sensitive control system and multi-protection device, which can realize safer operation and higher energy utilization rate.

K Track-type Mobile Crusher is equipped with an efficient turbocharged diesel engine with strong power. Benefiting from heavy tracked chassis, SBM's K Track-type Mobile Crusher has marvelous ground adhesion. Besides, the use of high-quality driving gear can exert infinite driving force, basically meeting the requirement of gradeability under severe working conditions.

The K Track-type Mobile Crusher can be operated independently or with other track-type mobile crushers, and can be matched and combined with other fixed or mobile equipment; it is of compact structure, and can be used in narrow sites, and its operating position can be adjusted at any time as required.

K Track-type Mobile Crusher has integral frame with stronger strength. Its structure is compact. Controlled by fully hydraulic system, the operation of equipment gets more flexible. Besides, the use of advanced crushing facilities on the mobile crusher improves the production efficiency a lot.

There are tens of lines of numerical controlling machine tools. Operations such as steel plates' cutting, bending, planing, milling and paint spraying are all controlled numerically. The machining precision is high, especially for the core parts.

SBM, 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.

A K Track-type Mobile Crusher is composed of the tracked chassis, frame assembly, hosts & accessory devices, power system and hydraulic electronic control system. When moving, powered by power system and driven by hydraulic electronic control system, the tracked chassis can move. During installation, under the control of hydraulic electronic control system, the power system drives actions of the hydraulic cylinder and other related devices to finish installation automatically. When working, under the control of hydraulic electronic control system, the power system drives hosts and accessory devices to work. After materials are crushed and screened, finished products are transported by belt conveyors.

Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.

working principle of crushers

working principle of crushers

On left is ashowing of the standard gyratory with straight concaves is a section through any vertical, radial plane in the crushing chamber of one of the intermediate sizes of the crusher. In order to understand the crushing action in such a chamber it is helpful to consider the process as though each step took place in an orderly, and ideal fashion. It is hardly necessary to add that the action never does take place in just that fashion; nevertheless the concept is fundamentally a correct one, and the average performance of the crusher follows the pattern so closely that it is possible to predict, within surprisingly close limits; what any particular design of crusher will do.

Letsstart out by visualizing the crushing chamber filled with a tractable material which will act just the way we want it to, with a head of material (choke-feed) above the receiving opening so that no unsurge of load will occur during the closing stroke of the crusher head. Now, consider any horizontal plane through this body of material as, for example, the plane at the receiving opening, represented by line O in the diagram. The crusher head is at the moment in the close-side position.

As the head recedes on its opening stroke, the body of material moves downward; until, at the end of the stroke, the plane has moved to position 1. Note that the length of line 1 from concave to open-side head position, is the same as that of line O from concave to close-side head position. On the next closing stroke line 1 is compressed by the amount of the bead movement at that level, and on the next opening stroke it moves down to position 2 and so on flown through the chamber, until it becomes short enough to pass through the open-side discharge setting.

We can just as readily visualize the process as being the movement of the trapezoidal areas enclosed by each adjacent pair of horizontal lines and the two crushing faces. Better still, we can consider it as the movement of annular volumes whose cross-sections are the areas just mentioned. This latter conception is essential in visualizing the action of non-choking concaves and crushing chambers.

In the diagram, the broken line through the centre of the crushing chamber is the line-of-mean-diameters of the compacted areas. When the profiles of both crushing facts are straight lines, as in the case under consideration, this mean-diameter line is also straight, and its slope depends upon the relative tapers of the head and concaves. When the line approximately parallels the centre-line of the crusher, which is also the case for the diagram we are examining, the theoretical action closely approximates that of the jaw crusher of similar cross-sectional proportions. Practically, however, the gyratory will have some advantage over the jaw, as regards freedom from choking, because the spider arms of the gyratory pre-vent a complete filling of the crushing chamber at the top. When the line slopes away from the crusher centre-line at its lower end the characteristics change quite definitely in favour of the gyratory, as will be seen.

A variable effort is required between the top and bottom of the chamber to crush particles. This may be understood by comparing the mantle and concaves to a nutcracker. Imagine the spider as the nutcrackers fulcrum point, and your hand as applying power similar to that applied by the eccentric at the base of the main-shaft. The closer to the fulcrum point that the nut is initially cracked, the less power you have to apply with your hand. In the same manner the crushing effort, and demand for power, becomes greater as the centre of gravity of the rock mass moves downward in the crusher.

Gyratory Crushers are heavy-duty machines run in open circuit (sometimes in conjunction with scalping screens or grizzlies). They handle dry run-of-mine feed material as large as 1 m. There are two main types of primary crushers-gyratory crushers and jaw crushers. Gyratory crushers are the most common for new operations.

Secondary crushers are lighter-duty and include cone crushers, roll crushers, and impact crushers. Generally, the feed to these machines will be less than 15 cm, and secondary crushing is usually done on dry feed. Cone crushers are similar to gyratory crushers, but differ in that the shorter spindle of the cone is not suspended but is supported from below by a universal bearing. Also, the bowl does not flare as in a gyratory crusher. Cone crushers are generally the preferred type of secondary crusher because of their high reduction ratios and low wear rates. However, impact crushers are used successfully for relatively nonabrasive materials such as coal and limestone. Frequently, size reduction with secondary crushers is accomplished in closed circuit with vibrating screens for size separation.

The gyratory crusher is used as a primary and secondary stage crusher. The cone crusher is used as a secondary, tertiary, and quaternary crusher. The action of a typical gyratory-type crusher is illustrated above. In gyratory crushers the crushing process comprises reduction by compression between two confining faces and a subsequent freeing movement during which the material settles by gravity until it is caught and subjected to further compression and again released. The particles are subjected to maximum breaking forces when they are on the side with the minimum gape.

Gyratory crushers work on a similar principle to jaw crushers but have a circular gap. Rock is compressed between a static conical bowl and a concave mantle which oscillates about the central axis. These are generally designed for primary crushing in large-scale rock crushing applications up to 6000 t/h. Typically a mining haul truck will empty its load into the gyratory crusher and reduce the feed with a top-size of up to a few meters down to below around 250 mm.

pew jaw crusher-sbm industrial technology group

pew jaw crusher-sbm industrial technology group

PEW Jaw Crusher is a new crushing machine developed by SBM, the jaw crusher manufacturer, after the release of traditional jaw crusher. This jaw crusher is a perfect combination of modern science and technology and the production practice, which can better satisfy the automatic production demands of vast customers.

SBM uses high-quality steel castings for core load bearing parts of jaw crusher, i.e. moving jaw and bearing block; this technology not only guarantees the perfect fitting and seamless connection of crusher rack, but also enhances the radial strengths of the parts, thus realizing more reliable performance and higher durability of the jaw crusher.

PEW Jaw Crusher is equipped with the hydraulic oil station to ensure that the lubrication system supplies oil to the lubrication components, providing security for the safe operation of the machine. At the same time, if the crusher shuts down with load, the hydraulic clearing system can quickly clean the crushing chamber, greatly reducing downtime.

PEW Jaw Crusher has more reasonable "V" crushing chamber and toothed guard board. By them, the actual size of feeding materials can be consistent with ideal size, which can effectively enlarge the crushing space. Besides, materials wouldnt pile in the crushing chamber, so the crushing ratio and capacity can reach the optimal status and the utilization of jaw plates could extend.

PEW Jaw Crusher adopts a wedge discharging adjustment device, so that the machine can turn the discharge port to a preset value within minutes even under the idling circumstance. In cooperation with the hydraulic system, automation is available. Compared with the old gasket discharging adjustment device, this device is simpler, safer and quicker.

There are tens of lines of numerical controlling machine tools. Operations such as steel plates' cutting, bending, planing, milling and paint spraying are all controlled numerically. The machining precision is high, especially for the core parts.

SBM, 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.

Firstly, the motor drives belt and pulley to make the movable jaw move back and forth, up and down around the eccentric shaft. When the movable jaw pushes the movable jaw plate towards the fixed jaw plate, materials get crushed. When movable jaw and plate move backwards under the action of the eccentric shaft and spring, the materials crushed before would be discharged from the port under the jaw plate. As the motor works continuously, the movable jaw can crush or discharge materials periodically, so that volume production can be achieved.

Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.

c6x jaw crusher-sbm industrial technology group

c6x jaw crusher-sbm industrial technology group

All indexes of C6X Jaw Crusher on structure and production efficiency present advanced modern technologies. SBM's C6X Jaw Crusher can solve such problems of the existing jaw crushers as low production efficiency, difficult installation and maintenance. At present, C6X Jaw Crusher is the ideal coarse crushing machine at domestic market.

C6X Jaw Crusher boasts more reasonable moment of inertia and greater crushing strokes through optimization of the equipment structure, crushing cavity and movable jaw's motion trail and speed. It is able to achieve higher crushing efficiency at the same power consumption and thus offer customers a larger rate of return on investment.

In order to ensure stable and efficient production during crushing hard materials, C6X Jaw Crusher is equipped with such core rotating components as high-quality casting movable jaw body, large-eccentric heavy-duty forged eccentric shaft, cast flywheel with a high moment of inertia and high-strength integrated cast steel bearing box, as well as strong power with reasonable speed configurations.

High-quality raw materials and reliable design can provide sufficient equipment strength and remarkable durability of C6X Jaw Crusher during super-hard material crushing and thus reduce the maintenance costs.

The C6X Jaw Crusher adopts centralized grease lubrication. Manual or automatic grease lubrication system can be configured as needed, which can reduce the difficulty in maintenance and simultaneously guarantee cleanness and neatness at the work site.

The C6X Jaw Crusher uses a double-wedge regulating discharge port with the mechanical or hydraulic regulation available as needed, so it can be regulated more simply and efficiently than the traditional underboarding discharge ports.

There are tens of lines of numerical controlling machine tools. Operations such as steel plates' cutting, bending, planing, milling and paint spraying are all controlled numerically. The machining precision is high, especially for the core parts.

SBM, 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.

Firstly, the motor drives belt and pulley to make the movable jaw move back and forth, up and down around the eccentric shaft. When the movable jaw pushes the movable jaw plate towards the fixed jaw plate, materials get crushed. When movable jaw and plate move backwards under the action of the eccentric shaft and spring, the materials crushed before would be discharged from the port under the jaw plate. As the motor works continuously, the movable jaw can crush or discharge materials periodically, so that volume production can be achieved.

Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.

sbm crushers, grinding mill, mobile crusher machine for quarry, mining, construction

sbm crushers, grinding mill, mobile crusher machine for quarry, mining, construction

Since the foundation in 1987, SBM has attained 124 patents on crushers & mills over the past 30 years and set more than 30 overseas offices covering 170 countries, which not only manifest our popularity, but also ensure that puzzles in operation be dealt with in time. If you are on the way to crushers products, SBM deserves your attention!

By 2019, SBM has built 6 advanced manufacture bases which cover a total area of over 1,200,000 m2, contain various of crusher and grinding mill production line, such as sand making machine, mobile crusher, vibrating screen and Raymond mill, etc. And the annual production value can reach RMB 5 billion.

To offer you more timely service and solve your puzzles during operation of production lines, we push out the strategy of "Globalization & Localization". Currently, we have set over 30 overseas offices distributed over different continents. If there is any need, we can "knock your door" at once. It is a strategy just right for you.

SBM gives itself over to the production of crushers and mills used in aggregate crushing, industrial milling and ore processing fields, such as sand making machine,portable crusher plant,vibrating screenandraymond mill. If you are engaged in theseindustries, why not choose know more about SBM?

the working principle of a jaw crusher - editors top

the working principle of a jaw crusher - editors top

One of the most commonly used crushing machine is the jaw crusher. It is a heavy-duty machine that is generally used for crushing different kinds of raw materials into smaller pieces. The jaw crushers can be seen in the mining and disposal industry where large rocks need to be crushed into smaller pieces for further use.

The working principle of the jaw crushers is very simple. Powered by a diesel or gas motor, the jaw crusher brakes materials in a crushing chamber. The materials are pushed inside the chamber from the top opening and when crushed they are released through the bottom opening. The crushing power of the jaw crushers depends on the size of the chamber. The bigger the chamber, the more powerful the jaw crusher. The crushing process can be basically explained as a process where the materials are sandwiched between two jaw plates. The movable jaw plates squeeze and crush the materials into several small pieces.

There are two main types of jaw crushers: double toggle and overhead eccentric jaw crusher. The only difference between these two crushers is the location of the pivot joint. In the overhead eccentric jaw crushers, the pivot joint is located at the bottom of the chamber, while at the double toggle crushers, the pivot joint is on the top. The double toggle jaw crushers are more preferred, simply because these crushers are described as fuel-efficient and easy to operate machines.

The jaw crushers can be used for crushing all kinds of hard materials quickly and efficiently. Powerful and highly efficient, the jaw crushers are essential pieces of equipment in the construction and mining industry. They can be used in combination with other crushing machines for more efficient performance. In most cases, the jaw crushers are used as primary crushing machines in projects where high quality materials are not needed.

Known as a bon vivant, Edward doesn't just amaze people with his passion for life's luxuries but also with his vast interests and talent as a writer; not surprisingly his motto is: "If you want to have limitless inspiration for writing, you have to live life first!". Whether it's all-things car related or travel adventures, he tackles with each and every topic, including those that have to do with arts, industries, tech gadgets, business and, believe it or not, love and romance!

Get in Touch with Mechanic
Related Products
Recent Posts
  1. harga tanaman crusher portabel di armenia

  2. where to buy mining equipment

  3. dolomite quarry crusher

  4. what are the environmental cost of iron mining in south africa

  5. personal gold ore crushing machine

  6. mechanical engineering in mining

  7. second hand zenith crushers

  8. how to use marble edging machine

  9. high quality stone stone crusher in jakarta

  10. different crushing value

  11. cement lime limestone plant 3*65m horizontal lime rotary kiln

  12. stone crusher tph capacity made by assam

  13. xinhai agitator agitation tank for zinc mining

  14. wet drum magnetic separator manufacturers wet drum magnetic

  15. mobile crusher hs code

  16. particle size reduction equipment

  17. isi bola 2 ball mill

  18. daman economic medium barite symons cone crusher

  19. bucket elevator speed

  20. crusher parts global