The 1 X 2 911MPEJAC12Small Rock Crusheris designed to finely crush rock and stone like aggregates or your favourite ore type (gold, silver, copper, etc.) from 3/4 (20mm) feed size down to a D50 50% passing 50 Mesh (300um).
This small jaw crusher and its miniature opening gape of25 mm X 50 mm, can easily adjust by hand. The CSS, known as the closed-side-setting, can be choked down to effectively pulverize the rocks you feed in. With a short throw at fast 500 RPM, this small rock breaker acts as a quasi-sample pulverizer without the dust of your typical cheap hammermill, chain beating, impact crusher amateur prospectoroften fall for and purchase online.
The 911MPEJAC12 with a crushing capacity of 10pounds (5 kg) per hours, ultra-portable (20 lbs.), and Small Rock Crusheris a Blake type crusher with a high-speed eccentric overhead. The product from this crusher is generally liberated enough and ready to pan or table for gravity gold separation. When you buy this Small Rock Crusher, you also get: An operating manual, the pulley, pre-installed AR450 jaw plates. Without the 1 HPmotor or mounting frame. This crusher canoperate with gas/diesel engine as well as electric motor. Be sure to ration your speed/sheaves to have 500 RPM on the jaw and you are set to crush-those-rocks.
An objective of the present contract is to provide a concept for the design of a portable underground hard rock crusher in order to insure that future development will lead to maximum utilization by industry. The preceding section has concluded that the industry can indeed use such a machine and that, within desired performance and dimensional parameters defined by this study, no standard crushers are suitable for handling hard rock.
As indicated in Section 3, and stated in standard references such as (5),and (6), hard rock of large feed dimensions is best handled by jaw and gyratory crushers. This conclusion is of little value for present purposes unless we can determine fundamentally why these machines, and only these machines, are satisfactory. Using this knowledge, then, we stand a much better chance of devising satisfactory new concepts.
The following section describes three new crusher concepts, one of which, though earlier thought to be an attractive new concept, can be discarded (for hard rock) because it clearly does not have the third fundamental characteristic mentioned above.
In view of the strong, and perhaps obvious, conclusion that portable crushers will accentuate the need for breaking occasional oversize feed fragments, some thoughts on handling this problem are also presented.
Each of the following subsections presents a new crusher concept for hard-rock, portable, underground applications. The first, which will be rejected, is discussed in part to illustrate the importance of the previously noted fundamental characteristics of successful hard rock crusher concepts. The third, on the other hand, indicates that, while valid for reasonably conventional concepts, it would be inappropriate and restrictive to apply such conventional design criteria to unconventional concepts.
Based on the successful development of the RAPIDEX conical reamer, a skewed rolling element crusher was conceived using the same principles. The conical reamer is a roller cutter device which s self-advancing by virtue of its wedge-like shape and skewed rollers. A crusher using the principles would be essentially inside out, and it would self-feed rock fragments between the rollers.
Figure 13 is a sketch of basic concept, which consists of opposed rollers arranged in a row of V shaped pairs. The rollers are powered (i.e., rotated) and skewed (tilted forward) such that a rock fragment placed within the V will be simultaneously propelled forward and drawn downward until it is crushed. Product size is determined by the (adjustable) axial space between rollers. Downward and outward flow of product would provide quick clearing of smaller material, thus allowing effective crushing of larger material carried forward between the rollers.
While all of these features would be desirable, it was noted that a large fragment could simply fall downward between two V sections rather than feed downward gradually as intended. From this position a fragment would then be driven forward and crushed substantially in a single, large compaction, in violation of the third listed desirable characteristic of a hard rock crusher. Large downward motion between rollers could be avoided, or at least reduced, by placing baffles between rollers, but this would also stop the free discharge of undersize materialone of the major claimed virtues of the concept.
In conclusion, the V roller crusher is judged to be unsuitable for hard rock crushing. It would be suitable, and would provide a good, free flowing design, for coarse crushing of softer of friable materials that can now be handled by conventional roll crushers.
The jaw crusher, either Blake or overhead eccentric as appropriate. is the conventional machine most nearly satisfactory for the subject hard rock portable application. It is entirely satisfactory in terms of crushing performance feed size, hard rock capability, reduction ratio, product characteristics, throughput, and economy. However, it cannot meet the necessary installed dimension requirements, particularly with regard to headroom. Although basic crusher dimensions (i.e., the jaws themselves) are not too bad, the conventional top feed arrangement requires much too much headroom, particular if slabby material (which would have to be vertically oriented) is to be handled.
It is appropriate, then, to search for a horizontal feed jaw-crusher concept. One obvious approach, tipping a basically conventional jaw crusher on its edge, (i.e. with the eccentric shaft vertical has been attempted in this country, and several such units are said to be in use in an iron mine hematite) in Europe. All use a horizontal chain conveyor travelling just beneath the lower edge of the jaws to move material through the machine. Although this configuration obviously does work, it must do so at some sacrifice in performance. It seems clear that a feed mechanism working only at one edge of the jaws must be at a disadvantage relative to the uniform (gravity) feed of the standard upright configuration. In fact, gravity acting transverse to the horizontal throughflow causes a downward migration of finer material, thus encouraging early choking in the vicinity of the chain conveyor.
The rotary jaw crusher, to be described, employe a curved flow path in an attempt to both decrease the vertical dimension of the jaws themselves and provide for horizontal feed without the above problems, it achieves uniform feed distribution across the jaws, with at least a portion of this being gravitational, while avoiding transverse migration of material within the jaws. It uses no conveyor within the crushing zone (although for low headroom applications a conveyor may be used to feed the crusher.)
Figure 14a illustrates a typical jaw crusher profile in simplest schematic form neglecting curved non-choking jaw features, all of which can be provided later as necessary. After Me Grew let us assume that the included angle between jaw faces is 200, that is. a small value for hard rock. Then, for vertical jaws having a 30 inch inlet and a 6 discharge, the bare jaw height must be 69 inches. (Recall the striking uniformity of conventional machine heights noted in Section 3.)
Figure 14b illustrates a schematic of an equivalent jaw crusher in which inlet and discharge dimensions and mean path length (hence convergence angle) are preserved while wrapping the mean path around a 180 curve. For these dimensions, the curved path results in a decrease of 7 inches in height (assuming for the moment a circular mean path). While this is not an enormous saving in itself, the configuration does provide horizontal feed, and this is a substantial improvement. Other advantages will become evident as the concept is further described.
Crushing motion of the curved jaw machine may be provided by several means, the most obvious of which would be oscillation of the external jaw (the right-hand element in Figure 14b) against a stationary internal member. Jaw motion may be maximum at the discharge, in a Blake-type action, or near the inlet, in an overhead eccentric type action, depending upon the choice of the designer. However, it is believed that neither of these will provide the best design.
Figure 15 illustrates what we shall call a rotary jaw crusher having the preferred inner element crushing motion. A cylindrical inner element is driven in an orbiting motion by a central eccentric shaft, essentially identical to that of an overhead eccentric crusher. It is expected that this orbiting motion will require less force than would oscillation of the outer elements, and less force than is required by conventional jaw designs. The latter must subject their entire rock charge to crushing forces simultaneously as the jaws converge everywhere at the same time. Furthermore, with conventional gravity feed of reasonably graded material, it is virtually certain that rock fragments will in fact be tightly lodged throughout the converging crushing zone as the crushing stroke commences. In contrast, the orbiting cylinder of the rotary jaw crusher produces only a local zone of maximum convergence which travels through the rock charge. Hence, although crushing the enclosed rock charge in approximately 180 of eccentric motion (like conventional designs), it does not crush the entire charge simultaneously. The rotary jaw eccentric bearing should thus see a force that is reasonably uniformly spread through 180, rather than the conventional force which rises to a peak at the end of 180.
Orbiting motion of the inner element provides one more major advantage if the motion is in the forward direction illustrated in Figure 15. In this case, the crushing action moves through the rock charge in the flow direction providing a peristaltic pumping action to assist throughput.
With regard to throughput, disruption of the simple straight through gravity flow of conventional designs is clearly the major drawback of the rotary design. Refering to the limiting 180 design of Figure 15, gravity feed will be effective only in the middle half of the passage. Feed can no doubt be enhanced in the inlet quarter of the passage by stuffing this region with a forcing conveyor feed, but no such assistance is available in the discharge region.
With the peristaltic action described above, it is quite possible that no throughput problems will be encountered particularly if the discharge region is cut back as discussed below. However, if difficulties are encountered, it is expected that rotation of the cylindrical inner element about its own axis will be very effective in urging material through the crusher. If simple feed enhancement
is all that is desired, rotary drive via a torque source that acts when large crushing forces are absent would suffice. On the other hand, perhaps considerably more rotary torque would benefit crushing action as well, via shearing forces on the rock (like those of an overhead eccentric design). In fact, one might consider a family of designs which distribute orbiting and rotating power differently for different rocks: ranging from pure orbiting on one extreme to pure rotary (i.e., a single sledging roll crusher) on the other.
Rotation of the inner element (either freely or driven) also provides for balanced wear between the two jaw surfaces, since the full circumference of the inner element is about equal to the total length of the outer jaw. Obviously, both jaws would be provided with replaceable wear surfaces. It may also be beneficial to use different surfaces (for example ribbed or smooth), depending on the proportions of crushing and shearing desired.
Although complete rotary jaw crusher design is beyond the scope of this study. Figure 16 illustrates schematically a more complete concept. Refering back to Figure 15, clearly the greatest throughput problems will occur near the discharge, where neither gravity nor force feed are effective, and where choking would be most likely to occur in a straight (i.e., continuously converging) design in any case. Proven methods, described by McGrew, can be used to design non-choking discharge regions to ease this problem, but it may also be necessary to simply move the crusher discharge point up as shown in Figure 16 to completely eliminate the problem. Furthermore, since the complete crusher must incorporate a discharge conveyor, the higher discharge point (and correspondingly higher inlet) may not result in an overall taller machine if it allows the elevated conveyor placement illustrated in Figure 16.
The rotary jaw crusher concept has been described in schematic form and certain of its important advantages have been cited. Other advantages are also derived from the curved mean path geometry. In summary, the following features are expected to be of special advantage in portable, low head room, hard rock crushing applications:
Section 9.2 discusses the use of impact hammers, probably hydraulically actuated, to break occasional abnormally large material feeding the portable crusher. If suitable means are developed for impact breaking occasional large pieces, then it would be a logical extension of that development to attempt automated breakage of all unbeltable material particularly when the latter constitutes a reasonably small fraction of total production. Such development should follow that of the occasional oversize breaking system (particularly its automated actuation) and, although no overall concept is presented here, the idea is suggested as a goal of impact breakage systems. It would seem to promise extreme portability together with the ability to handle widely varying feed dimensions.
Obviously, an impact breaker has to be strong, but meaningful strength parameters for an impacting machine are quite different from those of a conventional machine which uses essentially static forces and brute strength. For example, an impact bit cannot be blunt, at least in the same sense as a crusher jaw, but other design features, like assuring proper orientation, can compensate for this.
In contrast to conventional machines, an impact breaker definitely should not have a limited motion, since the rock to be broken cannot be well restrained at the time of impact. Thus, the second conventional characteristic actually is not correct for this particular unconventional approach. Finally, since an impact breaker would be intended to produce major fracture in a single blow, the third conventional characteristic is also simply not appropriate in this case.
In summary, fundamental characteristics of successful conventional hard rock crushers have been noted. It is believed that these are very useful in judging the suitability of new concepts utilizing the same basic crushing means, but they are not appropriate, and should not be restrictively used, in judging concepts utilizing different crushing or breaking principles.
As concluded in Section 8, breaking of oversize feed material will be increasingly important as crusher dimensions are reduced to enhance portability. Indeed, the importance of feed size in crusher design suggests that the handling of oversize should be considered an integral part of the hard rock portable crusher development program. Hence, although impact breaker design and application in general are beyond the scope of this study, it is appropriate to discuss breaker problems and features insofar as they relate to portable crusher development. Although oversize feed may be handled at a variety of locations, that most directly related to crusher development would be immediately upstream of the crusher, and it is primarily this location that will be considered.
Ideally, the device should run without an operator, breaking all oversize material without interrupting throughput. The following are, very briefly, the major problems that can be expected in the development of such a system.
The first problem will be to identify those fragments which are oversize. Once located, each oversize fragment must be properly positioned relative to the hammer, by moving either the rock, or the hammer, or perhaps both. Preferably, if slabby material is being handled, proper positioning will also include advantageous orientation of the rock. When properly positioned, the hammer should strike the rock with enough energy to fracture the piece in a single blow. If the rock does not fracture, or if fragments are still oversize, this must be quickly determined and another blow struck. Proper support of the oversize rock at impact is important, both to promote effective energy transfer from the impacting device, and to insure that impact does not damage the supporting machinery. In view of the variability of rock size and shape, and the possibility of its motion upon impact, the impacting memeber must be capable of sustaining glancing, or even entirely missed, blows without damage.
Many of these problems are already handled to some degree by present feeder units. For example, the typical feeder that utilizes a chain flite conveyor to pull material from the bottom of a surge bin generally extracts small material first. In slabby material the larger fragments are usually well oriented, with the maximum dimension parallel to the conveyor motion, and the minimum dimension normal to the conveyor surface. Combined with suitable gates, sensing devices, and hammers, it is not unreasonable to expect that such a feeder can be equipped to automatically reduce all feed material to a size which can be handled by a portable crusher. It can also be expected that considerable development effort and operating experience will be required before untended operation of such a system becomes routine.
Handling oversize material is a very important mine problem in general, and worthy of considerable attention. The preceding example, though selected because it relates directly to portable crusher design, illustrates many of the problems that might be expected in the development of any automated impact type breaker system, whether it be applied at a draw point, over a grizzly or on a feeder conveyor, and many of the comments in the following subsection are thus of general interest.
In a complete study of handling oversize material it would not be appropriate to assume that hydraulically actuated impact devices represent the best or only breaking means. For the purpose of this crusher study, we shall limit this discussion to such devices simply because they are the most nearly suitable of todays readily available means. That is not to say, however, that a typical off the shelf hydraulic demolition tool is ideally suited to this task.
For the hard rock, portable crushers contemplated in this study, fragments having minimum dimensions of the order of 30 inches would be considered oversize. It is desireable to break such a fragment in a single blow if possible, both to minimize positioning and holding problems and to avoid throughput interruptions, and because it is more efficient. One manufacturer suggests that this requires 1000 to 3000 foot pounds per blow, obviously depending on rock properties. This same manufacturer has found that repeated blows of too little energy tend to drill holes in large fragments without causing fracture.
In view of the generally poor confinement of target fragments and likely positioning errors at the time of impact, an efficient impactor should be capable of delivering an effective blow throughout a rather long stroke perhaps as long as 12 inches. In this sense, the typical demolition hammer, although certainly the most suitable off the shelf item, is not ideal.
Depending upon overall system design, rapid automatic blow capability may not be required. Thus the rapid cyclic action of a conventional hammer may be economically omitted in favor of a simpler design that triggers discrete blows after proper hammer position is established.
These two features, very long stroke and discrete blows, suggest that it may be appropriate to reexamine the hurled bit or projectile bit (after reference 8) concept. As the name indicates, this device uses a one-piece bit-piston which is (hydraulically) hurled directly against the rock without the internal metal-to-metal impact of conventional struck bit designs. The major virtue of the hurled bit concept is the substantial reduction of peak stress within the steel for a given rock stress),which in turn, for a given blow energy, permits the use of a lighter machine at higher impact velocities. Many of the admitted design difficulties of the concept have to do with rapid sequencing, a feature that may not be required in this application. Furthermore, with proper actuator design, the hurled bit breaker is compatible with very long effective strokes.
Single blow breaking, although fast and efficient, does have one obvious drawback: the required high blow energy may cause damage to the supporting structure. Figure 17 illustrates a novel concept in which the oversize fragment is struck from below, with reaction coming solely from the inertia of the fragment itself, rather than the surrounding machinery. This figure also illustrates a simple gating arrangement which might be used to trigger the impact. Such a design might well use multiple fixed impactors triggered by multiple gates (for example, spread across the width of the feed conveyor) to avoid the complexities of moveable components. The assembly would also require means to contain fragments.
There is a need, often cited by others, for a better method of controlling oversize, independent of the existance or use of portable crushers. One grizzly-drift block cave mine is experimenting with a low profile crawler mounted impactor, capable of servicing several drifts and many drawpoints, and results to date are promising. The Maysville Operation at Dravo Lime is also using an impactor, mounted on a tractor, to service their portable jaw crushers and all the working faces.
Non room and pillar mines using mechanized (non-slusher) face haulage have a common characteristic; namely, the ability to load quite large muck and haul it to a few (relative to production sites) dump points. Grizzlies at the dump pocket represent one method of filtering out problem-causing muck, but the oversize remains, to be handled by costly secondary means. These mines may not be able to convert existing rail systems to belts and (if they existed) crusher, but they can consider automatic, untended devices at the pockets to break oversize.
A successful pocket breaker must be funded (i.e., justified) by savings derived from increased productivity (fewer disruptions), reduced secondary breakage costs, reduced ore pass and chute maintenance, reduced spillage and wear in main haulage, and, perhaps, reduced ore pass costs (size). While these effects are far
reaching, no single item predominates, none are easily estimated, and it is clear that the pocket breaker must be very simple and inexpensive. Impact breakers represent only one potential solution, and since they may not be the most satisfactory or economical, we should consider other means.
Muck at the pocket may have major dimensions exceeding six feet and minor dimensions approaching three feet. Discharge from the pocket breaker should be in the minus 20 to minus 26 inch range in order to eliminate downstream problems (and to enhance eventual conversion to low profile crushers). The tonnage requiring breakage, and the reduction ratio, are therefore quite small, indicating that the pocket breaker need not run all the time. A simple jaw, or a vise, perhaps actuated by cylinders, driven by a source of high peak (but low average! power, might be sufficiently simple. Shafts and bearings could be eliminated in favor of less expensive pivots. Servicing should be simple, and the pocket should be useable even if the breaker is not functioning, perhaps by automatically (passively) shunting aside the very large oversize.
Obviously the portable crusher must include some sort of hopper or surge bin to accommodate this highly unsteady delivery, and the hopper design must be compatible with the low head room restrictions and the dumping geometry of the load-haul-dump (or other) haul equipment within those restrictions. Present machines, both the coal feeder-breaker type in use and the horizontal jaw crushers that have been tested, are one-piece machines that feed from the hopper via a chain type conveyor. The feed conveyor also travels through, and is an integral part of, the crushing mechanism.
In soft materials like coal, potash, and trona, feeder-breakers are often self-propelled, offering the ultimate in portability. Applications in harder materials have not enjoyed this degree of portability, although size alone has not been the major problem. Rather, portability has been substantially restricted because of costly and time consuming site preparations deemed necessary in the heavy duty applications. For example, rather extensive foundation structures, requiring subgrade excavation, have been used to avoid damage caused by impact from discharging haul vehicles, and to accomodate the discharge belt. Furthermore, in a wet application any sub-grade excavation must allow additional room to accomodate drainage and clean out functions. Complications such as these make it abundantly clear that the desired hard rock portable crusher should require essentially no site preparation, or at least no site excavation.
After some thought it becomes clear from the foregoing that the desired portable crusher might better consist of a least two independent pieces: a hopper-feeder unit, and a crusher-discharge unit. The former can be virtually identical to the simple, proven hopper end of present machines. The latter, being independent of the present integral feed conveyor, cannot be identical to the present machines. Several significant advantages may be derived from this multiple piece approach:
The hopper envisioned in this discussion is a very simple device, similar to the present crushing equipment except that the feed conveyor would be inclined to accept input at the necessary low level while discharging into the top of the crusher. With gravity feed into the crusher, and either a large inlet for the latter or a simple chute arrangement between the two, the hopper feeder need not be fastened to, or even precisely located, relative to the crusher. This would permit easy set-up and it may provide for much simpler protection against impacts from haul vehicles. For example. Figure 18 illustrates schematically a set-up having the following features:
Actual layout of the equipment is, of course, dependent upon a variety of mining conditions. The sketch is intended to suggest one possiblity, and to illustrate the flexibility inherent in a two-piece design.
Modular assemblies, which offer interesting advantages in this simple two-piece concept, are virtually a necessity if additional crusher features are to be provided. For example, if oversize feed is to be broken on the feed conveyor, as discussed in
a preceding section, it is unlikely that a one piece hopper-feeder-breaker-crusher design will be either portable or maintainable. Furthermore, it has been suggested that feed scalping be employed to avoid additional crushing of already beltable material. Suitable equipment for this feature is well within the present state of the art, and development of a one-piece integrated unit is not only not necessary: it may well be undesirable.
In view of the conclusions reached in this Applications Study, presented in Section 8, and reviews of present equipment together with new concepts presented in Section 9, three recommendations are made for further design, development, and testing of a portable hard rock crusher.
It is recommended that a program be initiated to develop a hard rock, low head room, portable crusher of the rotary jaw crusher type. It is believed that this concept is the simplest available based on proven hard rock crushing principles, and therefore, it is the best concept for full development.
Although the machine should ultimately be designed within those parameters cited in Section 8, early experimental work can profitably be done on a smaller prototype of perhaps 20-inch critical inlet dimension. The purpose of this experimental phase of the development would be to establish (above ground) proper jaw shape, eccentric motion, and rotary motion to assure proper feed. Once this is assured, full scale underground prototype development could be undertaken with confidence.
It has been concluded that feed scalping to avoid unnecessary crushing of beltable material would enhance the performance and capacity of any portable crusher. It is not believed that provision of this feature will require an elaborate development program: therefore, initiation of such a program at this time is not recommended, However, when a full scale prototype crusher design is undertaken, it is recommended that feed requirements be defined in suitable terms to permit procurement of a suitable feed system for use in early field tests.
It is recommended that a program be undertaken, in parallel with crusher development, for the development of suitable means for breaking oversize feed material. This program can be divided into three major subprograms and, in view of the widespread occurance of the problem (it has been cited by others), and the variety of possible applications, it is recommended that all three sub-programs be undertaken simultaneously. They are:
Rock Systems offers two types of crushing chambers:compression crushing, which squeezes the rock under great pressure;and impact crushing, which throws the rock at a high speed at stationary anvils or curtains to fracture the rock.
Our equipment is available on a portable chassis that provides mobility between job sites, modular semi-portable configurations, and as a complete processing plant with feeder, screening equipment, transfer, and stockpiling conveyors assembled as a custom designed material handling system.
Capacity2-140 T/H Fedding size150mm Discharge size2-50m Crushing MaterialRiver pebble, granite, basalt, iron ore, limestone, quartz, gangue and so on. ApplicationSuitable for crushing brittle bulk materials in cement, chemical, electric power, mining, metallurgy, building materials, refractory materials, coal mines, etc.
Whats the double roller crusher The Doule Roller Crusher, also known as roll crusher, toothed roll crusher, is suitable for fine crush the medium hardness rock with compressive strength 160MPa, such as ore, rock, coke, coal, clinker, ceramic raw materials, slag, refractory materials, and chemical materials. According to the number of rolls, the roll crushers can be divided into single roll crusher, double roll crusher or, four roll crusher. Double roll crusher is the most used type. We produce industrial roller crushers and laboratory uses small roll crusher. Advantages Replacement wear-resistant lining, long service life, convenient maintenance. Compact structure, lightweight, small size, for the same production capacity requirements of the crushing system, equipped with roller crusher can significantly save investment. The width of the discharge opening can be adjusted to determine the crushed material size. High reduction ratio, low vibration, dust removal, and less noise. High efficiency, low consumption, uniform granule, good granule shape. Roller crusher manufacturer JXSC, a Chinese rock crusher manufacturer, supply roll crushers global, we establish a wear parts supply system to meet customers parts replacement needs are met and reduce the downtime. Factory price, fast delivery, one year warranty, on-site installation, support roll crusher design.
Main partsBearing box, roll shell, bearing housing, adjusting rod, motor, carrier, fixed roller, movable roller and safety spring, etc. Working Principle of Double Roller CrusherThe roller of the roller crusher is supported by the spring pressure. Under normal working conditions, the spring force is sufficient to overcome the crushing force of the crushed material. By changing the number of spacers between the frame and the movable bearing, the width of the discharge port between the two rolls can be adjusted to adjust the grain size. When there is a material that cannot be broken into the crushing chamber, the spring is compressed, and the movable roller is retracted to increase the discharge opening. After the material is discharged, the movable roller is reset under the spring pressure. OperationThe main wearing part of the roller crusher is the crushing roller. Precautions as follows: Iron removal before crushing; prevent sticky mud clogging; pre-pick out the large ore rock; good lubrication condition.
Mining Machine, Crushers, Grinding Mills manufacturer / supplier in China, offering High Efficiency Jaw Crusher, Demolition Equipment, Cement Triturator, Stone Construction, Energy Saving Grinding Ball Mill / Wet and Dry Ball Mill / Feldspar, Granite Powder Making Raw Mill / Grinder Mill, PE 250 X 400 Stone Rock Jaw Crusher, Stone Crusher of Mining Machine and so on.
Henan Yuhui Mining Machinery Co, Ltd. Is located in Zhengzhou city in central plains, which adjoins to ancient millennium Shaolin Temple (Kung fu Origin) to the south, and Yellow River to the north. With Kailuo highway and Longhai railway, it owns convenient transportation and pleasant scenery. Established in the 1970s, Henan Yuhui Mining Machinery Co., Ltd. Has developed into a famous manufacturer through 20 years struggling and progressing, specialized in producing mineral dressing equipment, compound ...
Were proud to sell and service a range of industry-leading rock crushers. From jaw crushers to cone crushers and from stationary plants to mobile crushers, we offer a selection of models and parts that can suit any rock crushing need so we have a wide-ranging familiarity with the industrys leading brands.
Pegson was well-known for dependable lines of jaw crushers and cone crushers. The company was headquartered in the UK, but American distributors have helped to facilitate the provision of Pegson machines on this side of the Atlantic for decades.
Cedarapids is also owned by Terex, but this brand is still on the market. Cedarapids crushers are designed specifically to be modular machines, allowing them to be flexible in application and making setup efficient.
Home to the number one portable crusher in the world, Eagle Crusher supports the industry with it's extensive catalog of equipment options. Eagle produces an extensive catalog of heavy-duty impact crushers, portable crushing and screening plants, jaw crushers, and conveyors.
They offer mining jaw crushers, cone crushers, impact crushers, roll crushers and primary gyratory crushers for mining, quarrying and aggregate production, and boast expertise in a broad range of applications from greenfield mining projects to site expansions.
Allis Chalmers is another long-respected company that, today, has been dissolved into several different entities (none of which continue to provide rock crushers). However, as with Pegson rock crushers, there are still many Allis Chalmers rock crushers and parts available for resale.
Its widely held that the Symons brothers designed the first spring cone crusher in the late 1940s. Today, Symons isnt a brand as much as it is a type of crusher; the word is still used to denote machines that use this cone crusher technique. However, since it was the original brand, it merits an inclusion on this list.
Extec is another rock crushing brand thats still widely available for resale. Extec was based in the UK with a network of global distributors and was known for its leading design and manufacturing of mobile crushing machines.
If youd like more insight into any of these brands, get in touch with us. At Mellott Company, we have experience in servicing a broad range of rock crusher brands, including all of those listed here. Were experts at navigating all of the different components of rock crusher selection, setup, and maintenance.
China manufacturing industries are full of strong and consistent exporters. We are here to bring together China factories that supply manufacturing systems and machinery that are used by processing industries including but not limited to: rock crusher, stone crusher, crushing machine. Here we are going to show you some of the process equipments for sale that featured by our reliable suppliers and manufacturers, such as Rock Jaw Crusher. We will do everything we can just to keep every buyer updated with this highly competitive industry & factory and its latest trends. Whether you are for group or individual sourcing, we will provide you with the latest technology and the comprehensive data of Chinese suppliers like Rock Jaw Crusher factory list to enhance your sourcing performance in the business line of manufacturing & processing machinery.
The CBF series crusher bucket designed to crush material such as bricks, concrete, reinforced concrete, tiles, clays, asphalt slabs or inert material from demolition, quarry, natural stone directly on site. It is produced in 5 models for excavators from 7 to 45 tons, for backhoe loaders and wheel loaders. The structure grants minimum wearing and increases crush resistance, it can work in hard working conditions, without fearing weathering. The adjustment of the output size varies from 25 mm to 125 mm and the internal jaws are easily interchangeable. The CBF is equipped with a centralized greasing system and has a bi-rotary system that can reverse the eccentric shaft and therefore the rotation in case of blocking. The CBF crusher bucket also differs for its innovative and functional crushing system. The flywheels, the belt, the motor and the hydraulics have been designed inside the casing in order to be protected from impacts during work.Get in Touch with Mechanic