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Williams is an industry-leading roll crusher manufacturer and designer for high-quality roll crushers with desirable benefits such as high throughput capacity, minimal maintenance requirements, low cost per ton operation, and more. Learn more about our heavy-duty roll crushers below or contact our sales engineers to talk about your application needs.
A combination of impact, shear, and compression are the forces necessary to perform the crushing and size reduction in a Williams roll crusher. The material enters the roll crusher machine and is impacted by the roll as it rotates. Then, as the material is pulled between a crushing plate or rolls, shear and compression forces act upon the material. The rolls act as flywheels, contributing to smooth operation and efficient use of power. Roll crushing surfaces operate at a fixed distance apart, as opposed to the continually changing distances in a jaw or cone crusher. This creates a more consistent product size.Roll crushers are low in profile and relatively easy to install. They can be fed with a minimum of headroom, or even choke fed. Adjustments are simple andinternal parts are readily accessible.
Typical feed materials for Williams Roll Crushers include: bauxite, cement clinker, chalk, cinders, clay, coal, glass, gypsum, limestone, burnt lime, rock salt, sandstone, shale, sulfur ore, sea shells, and sewer sludge clinker. Single Roll Crushers, sometimes called lump breakers, can also be used for breaking frozen or agglomerated materials.
Williams Roll Crushers are used in a variety of industries such as, mining recycling, and power industries. Interested in learning more about the Williams Roll Crushers for your specific industry and application? Contact our sales engineers!
Choosing between a single roll crusher and double roll crusher depends upon the type of feed material, feed size, product size desired, and consistency of both feed and product. Both single and double roll crushers operate most efficiently with dry, friable materials. However, single roll machines have been widely and successfully used for the reduction of moist clays. They also have been long used as primary and secondary coal crushers, both at mine sites and power plants, where a minimum of fines is desired.
Williams single roll crushers reduce via a combination of impact, shear, and compression. The rolls are always toothed in patterns suited to the feed material. Single Roll Crushers generally handle larger feed sizes at higher reduction ratios in higher capacities and are particularly well suited to be used as lump breakers.
Double roll crushers reduce primarily through compression, although some shear is obtained with toothed rolls. Rolls for these crushers come in combinations of smooth, corrugated, and toothed designs. Double Roll Crushers produce a finer product at lower reduction ratios and capacities.
Oversized, heat-treated, alloy steel shafts plus self-aligning, roller-type bearings assure long life and maximum use of power. Jackshafts for control of roller speed are standard on double roll crushers, optional on larger Single Roll Crushers.
Heavy-duty compression springs permit movement of floating roll to pass tramp metal and other uncrushables, avoiding overload and damage. Smaller Single Roll Crushers are equipped with a shear pin release.
Faces Tooth patterns and corrugations to fit feed material; abrasion-resistant alloy; easily replaceable. Ash Crushers have additional features including dust-tight design and sealed cover plates for breaker plate access.
Williams Single Roll Crushers are also available in a 15 inch (381mm) diameter dust-tight version for applications such where it would be expensive to have dust collection air. Already well known for rugged construction, low profile, high reduction ratio, and economical cost, Williams Dust-Tight Ash Single Roll Crushers also have easy access to the rotor for maintenance. These dust-tight roll crushers are perfect for applications such as crushing ash, limestone, coal, or glass.
Nanchang Mineral Systems Co., Ltd. was founded in 1970. Based on 50 years of professional experience and continuous pursuit of technological progress, the equipment has been exported to more than 60 countries and regions, serving many of the world's top 500 enterprises.
Nanchang Mineral Systems is an excellent global manufacturer of high-end crushing and screening equipment systems and a full-industry chain operator of general contracting for mine processing. It has set up overseas branches in South Africa, Malaysia, Russia, Australia and India. End users are located in mines, hydropower at home and abroad , Nuclear power, stone, building materials, chemical industry and other industries.
Nanchang Mineral Systems is an excellent global manufacturer of high-end crushing and screening equipment systems and a full-industry chain operator of general contracting for mine processing. It has established overseas branches in South Africa, Malaysia, Russia, Australia and India. End users are located in mines, hydropower at home and abroad , Nuclear power, stone, building materials, chemical industry, etc.
As the name implies, a portable crusher or crushing plant is capable of breaking down almost type of material, organic or otherwise, from simple debris to complex ores and minerals. A concrete crusher, for example, can crush rocks and mix them with concrete and asphalt for roadside construction projects. Whether you need a used rock crusher for sale, a concrete crusher, or something for iron ore, sandstone, and other similar materials, the expert sellers at My Little Salesman have got you covered.
Choosing the right portable crusher largely depends on the type of industry youre in for example, you dont need a used stone crusher if you are going to be handling softer materials. No matter what you need to have crushed, however, there are three portable crusher types to choose from:
If you go with an impact crusher, you will have to choose between vertical and horizontal shafts. A vertical shaft impactor has a higher speed than a horizontal shaft impactor, which causes the materials to be busted into evenly-shaped cubes (which is good for handling uneven rock and ores). A horizontal shaft impactor uses hammers to do the job, and is therefore better for softer materials such as limestone and phosphate.
The HAMM product range covers articulated soil compactors ranging from 5 to 25 t for soil and landfill compaction. You can choose between soil compactors with smooth drums, padfoot drums, VIO drums (vibration and oscillation) or VC drums (vibration crusher).
With articulated and pivot-steered tandem rollers of between 1.5 and 14 t, HAMM is offering a large range of machines for practically any application in asphalt construction for all markets. This includes double vibration rollers (VV), rollers with vibration and oscillation drums (VO, VO-S), combination rollers (VT, VT-S, OT) vibration rollers with split drums (VV-S) and rollers with split vibration and oscillation drums (VS-OS).
HAMM offers pneumatic tire rollers with an operating weight of between 8 and 28 t (depending on ballasting) for all markets. The pneumatic tire rollers are suitable for earthwork and asphalt construction.
Easy handling, great service and reliable, high-performance operation this is what sets HAMM rollers apart. This is why, among other reasons, they are ideally suited as rental machines. Models from the CompactLine are especially sought after by rental companies.
In northern Michigan, a HAMM H 13i VIO soil compactor working in oscillation mode was paired with a WIRTGEN WR 240i cold recycler to rebuild seven miles of the State Road M-72, crossing the lower Michigan peninsula.
In 2020, HAMM is represented on the market with a powerful and versatile range of compaction technology for earthwork. At CONEXPO/CON-AGG 2020, the manufacturer will underline this fact with a wide range of exhibits from the field of earthwork for diverse applications.
Jaw crushers and cone crushers both are a classic laminated crusher. Also is the most mainstream crusher type. Jaw crusher is usually used as a primary crusher and second-class crusher. Cone crusher is usually used as secondary crusher or three-stage crusher machine. Jaw crusher and cone crusher are usually arranged on the stone crusher plant in two stages.
Jaw crusher breaks the rock to 10 ~ 30 cm size. Cone crushing machine further broke the stone to below 10 cm. Large cone crushers (gyratory crushers) also can as head crushers. Fine jaw crusher also can as a two-stage crusher, crushing stone to cm grade particle size range.
Cone rock crusher and Jaw stone crusher are a laminated crushing principle. Which is commonly known as the impact crushing principle The nature of crushing doesnt change too much, although the actuator of crushing use of different structure. The cone crusher adopts the extrusion process between the grinding wall and the crushing wall. Jaw crusher adopts the extrusion process between the moving jaw plate and the static jaw plate.
Cone crusher and jaw crusher are widely used, but the applicability of the two types of crusher is different. Jaw crusher has the most extensive adaptability and can meet the crushing requirements of almost any kind of materials. Cone crusher is also very wide applicability, but the Metso cone crusher price is high. Low corrosive materials can choose a low-cost impact crusher. Therefore, the applicability of metsos cone crusher has been reduced in economic consideration.
Cone crushing main advantages: High productivity, less power consumption, work more stable, small vibration crushing ratio, product granularity is more uniform, any side can give ore, and can be crowded to ore.
Jaw crusher main advantages: simple structure, low manufacturing cost, convenient maintenance, reliable work, small machine height, easy to configuration, high viscosity for the water ore is not easy to block.
Cone crushing equipment main disadvantages: Complex structure, equipment high costs, height. And need a higher workshop, machine heavy, inconvenient to transport, not suitable for crushing sticky ore, operation and maintenance more complex.
Fine jaw crusher is more used as a secondary crusher machine. It can crush the materials below 200mm to cm level. two jaw crushers can be equipped with the complete crushing production line. The single machine capacity of fine jaw breaking is low, and the breaking capacity of less than 100 tph can only be obtained by means of parallel connection of two machines.
Cone crusher as second-level crushing equipment, single machine crushing capacity of several hundred tons per hour. It occupies the absolute advantage in production capacity. Therefore, the fine jaw crusher can only be used in the secondary crushing station with small capacity. The cone crusher can be used in the secondary crushing station with a large capacity.
The matching of jaw crusher and cone crusher is based on the crushing segmentation. It is necessary to consider whether the particle size of jaw crusher can enter the cone crusher to form secondary crushing. For example, Compound Cone crusher configured in the back process of jaw crusher. The jaw crusher equipment broken too large discharge will plug the cone crusher feed mouth. Resulting crusher plant can not run smoothly.
For the matching of jaw crusher and cone crusher. It is necessary to compare the particle size range of the two materials. And adopt to the best matching range can obtain the most efficient production running state.
Jiangxi Shicheng stone crusher manufacturer is a new and high-tech factory specialized in R&D and manufacturing crushing lines, beneficial equipment,sand-making machinery and grinding plants. Read More
Nodiscussion of primary crusher selection would be complete without a comparison of the two leading types: the standard gyratory crusher and the Blake jaw crusher. Although their fields of application overlap to a considerable degree (at least in the realm of primary crushing) there is no real conflict between these two machines; one supplements the other and, between them they very effectively cover an imposingly large proportion of the entire field of primary crushing applications. This does not mean that other types, such as the sledging rolls, for example, are not better suited for certain applications; but there are very few primary crushing jobs to which the gyratory or jaw crushers, or both of them cannot be applied with at least a fair degree of satisfaction.
Either of the two types can be built to handle the hardest and toughest rock or ore that can be economically mined or quarried. The jaw crusher, because of its box-frame construction, and simple toggle mechanism, is especially well adapted to extra heavy design for the crushing of extremely tough materials: in this respect it holds some advantage over the gyratory type, because the extra strength necessary for such work can be built into it at less cost than is required for the gyratory with its more complex shell castings. However, cases where extreme brute strength enters into the selection problem are relatively rare, either type can be used for the great majority of materials encountered in crushing practice, either in standard form or in reinforced design. Strengthening of these machines for extra-heavy duty follows certain well established practices which have been proven to be necessary or desirable. Usually it is a matter of selecting stronger metals, or adding weight in the frame, or both; seldom is it necessary to change the proportions of the working mechanism.
In most cases selection of one type or the other can be made on the basis of performance characteristics, receiving openings, space requirements, and so forth, without regard to relative strength of design. In choosing between the two for any specific application it is helpful to have a list of the salient features of each type, in a form that will permit quick and easy comparison. The following lists emphasize the favourable characteristics of each machine.
Neither machine is particularly well suited to handling very soft, or mushy materials, although the jaw crusher is superior to the gyratory for such service. Loosely cemented minerals, such as soft sandstone, will not work well in the gyratory crusher; packing on the diaphragm behind the pipe is almost certain to cause trouble. The jaw crusher will handle rock of this character if it is reasonably free-flowing. The action on all very soft materials is inclined to be sluggish and, unless it is at the same time of a free-flowing nature, packing in the crushing chamber is an ever present hazard. The jaw crusher will handle rock and ore containing a considerable proportion of loam, or similar contamination, provided that the admixture is not so viscous that it builds up on the jaw plates. The gyratory should never be used for materials containing more than a small percentage of such contamination, the allowable amount being that which the clean crushed rock will keep scoured off of the diaphragm. Flushing the diaphragm will prevent packing of this dirty material, but this practice is usually not permissible in the crushing plant.
We have had occasion to use the expression, comparable sizes, a number of times in this work, with reference to comparisons between two types of crushers, particularly the jaw and gyratory types. This expression has been used by many writers on the subject; usually without any attempt to define exactly what it implies. As a matter of fact, it is a difficult term to define with any degree of accuracy. The Old Quarryman says, It means two machines, one of which you would buy if you didnt buy the other one, providing you had enough money to buy either one of them. That comes about as near as any definition. Comparable sizes of gyratory and jaw crushers are those sizes which the engineer or operator pairs off against each other when making a selection to fit his specific problem, and these pairings may not be the same for all problems. One job may involve capacity as the most important factor; the next one may demand special emphasis on receiving opening. Obviously these different requirements may call for setting up acomparison between different sizes of one or the other type.
Usually, in selecting the primary crusher, receiving opening is the prime consideration; admitting of course that capacity must be adequate. The following list is an attempt to pair off gyratory and jaw crushers on the basis of effective receiving openings, bearing in mind that each shape of opening has its advantages for certain shape-characteristics of the feed, as has been pointed out.
Sometimes, in making a comparison of receiving openings, it is helpful to make a scale drawing of both openings, superimposing one upon the other. The rectangular jaw opening is simple and easy to layout. To draw the gyratory opening, it is necessary to know the top diameter of the crushing head; to make a complete sketch, the diameter of the spider hub and the width of the spider arms should also be known, but this information is not absolutely essential in making the comparison. Taking half the top diameter of the head as a radius, draw the circle which represents the top of the head; then, increasing the radius by the actual opening between head and concaves at their tops, draw the circle representing the concave ring at the top of the crushing chamber. Then superimpose the diagram of the jaw crusher opening, laying it in tangent to the head circle.
To facilitate this work for the line of Superior McCully gyratory crushers, we list in the following table the top diameters of the heads, and openings between head and concaves for straight-face, and non-choking, concaves.
Laying in the plan view of the spider hub and arms will, of course, give a more complete picture of the gyratory crusher receiving openings, but the picture is likely to be a littlemisleading unless it is borne in mind that the maximum diameter of the spider hub is some distance above the upper rim of the crushing chamber, and therefore does not restrict the receiving opening as much as the plan view indicates. The true effective receiving opening can only beshown in its proper proportions by tilting the plan view; that is, by an angular projection normal to a plane which is tangent to the bulge of the spider hub, and to the top of the crushing head, To draw such a view requires more information, and usually more drafting skill, than the average man has at his disposal. The circle method described in the second preceding paragraph is sufficiently close for all practical purposes.
If the material to be crushed is of a slabby nature, for example, a thinly stratified limestone or shale; the product of the jaw crusher is certain to contain slabs, some of which may be quite large, particularly so if some of the strata in the deposit are thinner than the discharge setting of the crusher. Nor is this tendency to slab in the crusher confined to stone of stratified formation. Some rocks of massive formation may contain parallel cleavage planes in certain sections of the deposit. Such material will slab in the crusher just the same as those rocks which wereformed in definite layers, or beds.
The gyratory crusher by virtue of its annular discharge opening is an effective slab breaker. This faculty, coupled with the fact that its receiving openings are especially well suited for admitting slabby feed, give it a very definite advantage over the jaw crusher in the handling of such material. In the foregoing comparison of these two leading types of primary breakers we have endeavoured to present the case for each of them in a fair and impartial manner. It would be difficult, and probably more than a little tedious for the reader, if we were to attempt a more definitive analysis or to set up fixed rules of procedure for selecting one or the other machine; a process which is always fraught with pitfalls in such a broad and empirical branch of engineering as the processing of rocks and ores. Usually the matter of choice can quickly be narrowed down to a comparison of one size in each type. These two machines may then be tabulated with respect to capital investment, capacity, power requirements, space requirements, and so forth; their receiving openings may be compared, as we have suggested, and all of the factors we have discussed in this section checked against the features and limitations of each machine to determine its ability, or inability, to fit into the plan.
To accomplish this reduction in size takes several steps or stages of crushing and grinding. Primary crushing is the first of these stages. Generally speaking there are two types of primary crushers, lets compare them: GYRATORY CRUSHER or a JAW CRUSHER. Although they dont look anything like they do have similarities that put them into the same class of crusher.
Their CRUSHING SPEEDS are the same, 100 to 200 revolutions per minute. They both break the ore by COMPRESSION. That is they both break the rock by squeezing it until it breaks. On the average their final product will measure about seven inches at its widest point. And finally they both can be built to accept a rock up to sixty inches across.
Even if they are much alike, each of the two types of crushers has its own uniqueness. Because of this difference each type of crusher has its own environment that it operates best or at least better in, than the other.As an example, a gyratory crusher can be fed from two sides and handle ore that tends to slab. Also its design allows a higher speed motor with a high reduction ratio between the motor and the crushing surface. This is an important consideration as it means money saved in energy costs. A jaw crusher on the other hand requires a flywheel to store energy but can be used on the tougher ores due to its box frame construction. To be effective it must be fed from one side only but it handles square block-like ore well.
There is another comparison that should be taken into consideration, that is the amount of space that each takes. The Jaw crusher is the smaller of the two and its single feed point will make it a logical choice for underground workings. In the actual operation of the crushers, they both have similarities as well as differences so lets take each one separately and discuss its design and its problems. Considering the title of this chapter is Primary Crushing (Gyratory) we should discuss that one first.
In the introduction I mentioned that the purpose of a concentrator was to produce a concentrate of which ever mineral was being mined. To be able to recover this mineral it is necessary to reduce the ore in size until the mineral is LIBERATED. This means that the ore must be reduced in size until it is fine enough to be able to separate the mineral from the unwanted rock. In the Vocabulary of the metallurgist, at this point of the operation the unwanted rock will be termed the GANGUE material. You will notice that the terminology used for the ore will change depending upon the stage of concentration. The reason for this is to keep technical communication accurate.
All the heavy machine manufacturing in India has led to its development in the past. There are many heavy types of machinery manufactures in the country which has earned credits all around the globe. There are Jaw crushers manufacturers in India, as well as there are cone crusher manufacturers in India.
These machines are used majorly in the field of construction, metallurgy, chemical and silicate industry, mining, and road building. Its a no-brainer that the both these machines, i.e. the jaw crusher and the cone crushers find their utility in the crushing process.
A layman is ought to use the names for these machines alternatively, but there are many differences between the two popular machines. Let us walk through a comparative analysis between the cone crusher and the jaw crusher.
A Jaw crusher is made up of two jaws- the fixed one and the moving one. The machine is used to crush larger sized rocks in a motion resembling that of a nutcracker. The crushing process reduces the size of the stones. The chute that filters the rocks is built in such a way that it narrows towards the base. This helps in filtering the rocks and allows only a particular size of rocks to pass through.
A cone crushers components that is the fixed and the movable cones are similar to that of a jaw crusher. The major operational difference is that the cone crusher utilizes both the cones to grind ores and rocks into smaller pieces. The input is fed in between the two cones and the output is discharged from the discharge hole at the bottom of the cones.
A cone crusher, on the other hand, operated on the principle of rotating oscillatory motion. The pressure on the stones acts when in between the two cones. The two cones do the eccentric swinging movement and produce a force strong enough to crush the hard rocks. The bending force, shearing force and friction force result into a strong force which ultimately breaks the rocks.
A cone crusher is used for secondary crushing. The input to the cone crusher is much smaller and fragmented than that in the jaw crusher. The granularity of the materials that are crushed in the cone crushers is about 35mm to 350 mm. A cone crusher is best suitable for crushing of materials with high hardness like granite, marble, pebbles, dolomite, rhyolite, and diabase.
A Jaw crusher is used in the fields of quarrying, mining, recycling, infrastructure, and construction. It plays the primary role in the crushing of huge stones. Some of the features of the Jaw crushers are:
Not every crusher is suitable for every application. When choosing the best crusher for aggregate applications, it is important to understand how the crusher works and its impact on efficiency, operating costs and final products. When designing aggregate processing production line plans, there are usually differences in the choice of impact and cone crusher. What is the difference between impact crusher and cone crusher? Which is the best fine crushing equipment?
For impact crusher, the high-speed rotating rotor throw stone into impact plates, stones are crushed via impact energy produced rotating rotor. So, impact crusher is good to crush soft material of brittle stone.
Initial High-manganese steel is softer than high-chrome steel, but high-manganese steel has features of high tenacity, that means after many times strike and crushing stone, this high-manganese steel will become harder and harder, so, high-manganese steel is usually used to crush hard stone, and its service life will be very long. So, both jaw plates of jaw crusher and bowl liner & mantle of cone crusher are made from high-manganese steel.
High chromium iron is very hard, but it is a little brittle, so, it usually used to crush soft material like lime stone. Therefore, the most common blow bar/hammer material of impact crusher is high chromium iron.
According to our experience in Zambia and Nigeria, most of the local raw materials are hard stones like granite, so most investors or equipment owners in Zambia and Nigeria usually use cone crushers as secondary crushers. Because of its high production efficiency and low maintenance costs for hard stones.
Due to the different types, sizes and uses of stone crushers, and the large investment required to purchase stone crushers, it will make the purchase of equipment difficult. When you are looking for crushers or other aggregate equipment, please contact our aggregate equipment experts to help you make the right choice in the first time.
Jaw crusher and gyratory crusher as the primary crusher, play an important role in the crushing process. How to choose the suited primary crusher from the jaw crusher? Whats the difference between a jaw crusher and a gyratory crusher? JXSC starts with the following points: structure, capacity, energy consumption, maintenance.
All in all, if one set jaw crusher can achieve the needs of production, buy jaw crusher; if need two sets of jaw crusher, that would be better to buy a gyratory crusher. You may interest in 1. Single Toggle vs Double Toggle Jaw Crusher 2. Jaw Crusher Operation
In the makrket, two most popular aggregate crushing equipments include: Cone Crusher vs Jaw Crusher. Although the cone crusher and jaw crusher are used to crush materials, what is the difference between the two crushers?Table of Contents Jaw CrusherAdvantages of Jaw CrusherCone CrusherAdvantages of Cone CrusherWhats The Difference Between Jaw Crusher and Cone Crusher1. Different Working Principle2. Adapt To Different Material3. Different Feeding Method4. Different Final CostHow To Choose Right Crusher
Jaw crusher has a moving jaw plate and a fixed jaw plate, which are wear-resistant and pressure resistant. During the operation, the jaw plate simulates animal occlusion, and the feeding port is large, so it is very suitable to deal with the coarse crushing of large block materials;
Cone crusher, with various types, large processing capacity range, high efficiency, low energy consumption, uniform product size, which is suitable for medium and fine crushing of various ores and rocks.
Jaw Crusher: The crushing chamber of jaw crusher is composed of fixed jaw plate and movable jaw plate. The fixed jaw plate is fixed vertically on the fuselage body, and the movable jaw plate is in the inclined position. The movable jaw plate continuously moves to the fixed jaw plate periodically. When the two jaw plateare close, the material is crushed by extrusion. When the movable jaw plate is far away, the broken material slides down and is discharged from the crushing chamber.
Cone Crusher: The motor of the cone crusher drives the transmission shaft to drive the eccentric sleeve to rotate, and the movable cone swings back and forth under the force of the eccentric sleeve, the movable cone is periodically close to and far away from the fixed cone, and repeatedly extrudes and impacts the material until the material meeting the requirements falls to discharge from the crushing chamber.
The gyratory body of cone crusher is higher, twice or three times of jaw crusher, and the workshop cost is larger. The weight of cone crusher is larger than that of jaw crusher with the same output by 1-2 times, so the equipment cost is higher. The installation and maintenance of cone crusher is more complicated than jaw crusher.
Therefore, when crushing hard rocks and long rocks, the cone crusher should be preferred. This design is more favorable. When wet and viscous ore is crushed, or medium, small concentrators, jaw crushers are suitable.
The weight of cone crusher with the same output is about twice that of jaw crusher, so the cost of civil engineering and later maintenance is higher, but the cone crusher has deep crushing cavity, large capacity and low energy consumption.Get in Touch with Mechanic