toothed roll crusher 265

reliable toothed roll crusher | fote machinery

Applied material: coal, pebble, perlite, limestone, dolomite, etc. Its outstanding features: high crushing capacity, hadraulic pressure used to adjust the distance between the rollers, and the centralization lubrication on the brearing.

The toothed roller crusher is generally used for the medium and fine crushing for brittle and medium-hard ores, and the size of the crushed product is usually not less than 20mm. Because of its simple structure, easy maintenance, and low price, it is popular to aggregate and coal ores suppliers.

A double toothed crusher with less volume is composed of two toothed rollers which is installed in parallel and rotates in opposite directions. The two-toothed rollers adopt non-meshing and non-constant speed operation to strengthen the degree of occlusion, which ideally prevents the material from slipping thus improving the crushing efficiency.

Generally speaking, materials are crushed in three stages in a double toothed roller crusher. The material enters the crushing chamber by the impact force of the deep tooth gear for the first crushing. The large-block material is cut by the teeth to complete the second crushing, and then being squeezed when they enter the toothed rollers to complete for the third crushing. Finally, the crushed material is discharged from the outlet with the rotation of the toothed roller.

1. The company makes further improvement in the aspects of feed particle size, rotor diameter, rotor channel, etc., so that this series of products can adjust the corresponding rotor structure and the corresponding speed according to different materials and feed grain levels to cooperate, and can achieve higher production volume and higher fineness modulus.

In recent years, with the transformation and upgrading of the coal industry, the requirements for coal development efficiency and environmental protection are increasing day by day. In the field of coal chemical industry, the requirements for product particle size are extremely strict, and generally the particle size is between 25 mm and 70 mm.

If the particle size is too large, the crusher chamber will be blocked, and downstream processing cannot be carried out. The toothed roll crusher is currently used in coal crushing because of its large processing capacity, low fine powder producing rate.

The crusher teeth are composed of big and small tooth phase interval, which can effectively improve the meshing capacity gear roller with the ensure of ideal particle size. Strong meshing capacity can improve the equipment processing capacity, reduce the tooth roller wear, prolong the tooth plate service life.

The connection between tooth plate and tooth roller base is made by screw fastening block, which not only guarantees the connection strength, but also has good interchangeability and replaceability.

Carbon bainite wear - resistant cast steel is used as the material of the tooth plate. The wear resistance of this material is about 40% higher than that of 40Cr surface-welded wear resistant layer. In addition, the whole tooth roller structure, including tooth plate, tooth roller seat, thread fastening block makes strength and hardness of each component more balanced and reasonable.

Besides, the motor is equipped with an electric heating system, and the hydraulic coupler and reducer are made of low temperature synthetic oil which ensures the transmission system smooth operation in the low temperature even with minus 30 .

The Indian customers coal mine adopts the single-bucket truck with semi-continuous mining process, and the raw coal has large grain size, gangue with great hardness. In the original production line, he firstly crushed the material to less than 300mm, then crushed them to less than 70mm by a ring hammer crusher. The crushed material with 70mm was transported to the coal storage bunker by conveyor belt for screening to final products of 25 ~ 70mm.

Technical improvement is urgently needed in order to reduce the operation cost and labor intensity of workers, and ensure the normal operation of the production system. So, the user finally chose Fote toothed roll crusher to replace the original ring hammer crusher.

After the double toothed roller crusher is put into use, the equipment runs stably, and the output particle size of the product has been improved obviously. The comparison shows that there is a 18.2% difference between the qualified products before and after the equipment replacement, which greatly increases the output of the qualified products and creates great economic benefits for the enterprise.

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

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

toothed roll crusher for coal preparation plant - ftm machinery

Toothed roll crusher is widely used in coal, metallurgy, mining, chemical industry, building materials, and other industries, and it is more suitable to crush coal in large coal preparation plant and process waste. Toothed roll crusher has a high crushing capacity. The distance between the rollers can be adjusted by hydraulic pressure. The bearing of the toothed roll crusher is centralization lubrication. Whats more, it has the advantages of optimal design, high efficiency, uniform grain, and low cost.

Protective device: The motor is connected with the retarder through hydraulic coupling to avoid dynamic overload. The sensor overload protection is very reliable. If you have mining project or chemical plant, the toothed roller crusher is prepared for you in China Fote.

The toothed roll crusher is suitable for crushing raw coal in coal mines, coal preparation plants and other industries (allowing less than 30% of coal gangue in raw coal). The crusher is also used to break other brittle materials whose hardness is similar to that of raw coal.

It has the characteristics of high efficiency, long life, full sealing, low noise, and uniform granularity. The double-toothed roll crusher is equipped with a scraper to keep the groove and working surface clean. For the toothed roll crusher, the outlet-size depends on the gap between the two rollers, the size of teeth, shape of teeth, and the number.

The double-toothed roll crusher is relatively small in volume. It consists of two tooth rolls that are mounted in parallel and rotate in opposite directions. According to the crushing capacity and the size of the discharging granularity, the two crushing rolls are uniformly filled with brushing teeth.

And the double-toothed roll crusher adopts the operation way of non-circular, non-intermesh and non-uniform, which can enhance the contact face of roller teeth, and avoid material slippage and improve crushing efficiency.

When the toothed roller rotates, the teeth on the surface of the roller can bite the materials and crush them. Each roller crusher of the crushing system is driven by a separate motor. The roller crusher is generally driven by a belt, and it constitutes the deceleration system along with the reducing mechanism.

FTM double-tooth roller crusher for sand making, limestone, rock, clay crushing has a good crushing effect on wet and sticky materials. And adherence or clogging phenomenon never occurs during the work.

The silicon-aluminum raw material is an indispensable calibration material in the dry cement production process. After the mining work, the materials need to be crushed, transported and stored. and then they are sent to the raw material mill for grinding according to an appropriate ratio.

However, the silico-alumina raw materials have strong water storage capacity and high plasticity index, especially for bauxite and marlstone with water content more than 17% and plasticity index generally above 15. Because of the viscosity of materials, it can lead to blockage and arching during the process of crushing, transportation and storage, thus affecting the normal operation of the system.

In order to solve the problem of adherence and clogging of wet-adhesive materials in the crushing stage, FTM toothed roll crusher is used to break the mixture of limestone and marl. In detail, firstly, the wet and dry materials are mixed and crushed, and secondly, the wet-adhesive materials and other limestone materials with lower moisture content are mixed into the crusher. And finally, they are crushed according to an appropriate ratio.

The toothed roller crusher machine has advantages of small volume, large crushing ratio, low noise, simple structure, convenient maintenance, high productivity, uniform particle size of crushed material, low crushing rate, convenient maintenance, sensitive overload protection, safe and reliable.

coal crushing: new-type toothed roll crusher vs traditional toothed roll crusher | hxjq

In the coal industry, the requirements for the particle size of the finished product are extremely strict. Generally, the particle sizes of the finished products are between 25 and 70 mm. If it is too large, the furnace will be blocked and further coal processing can't be performed.

Toothed roll crusher is the mature coal crushing equipment applied in the current coal industry, which satisfies all the demands of customers by its advantages of large capacity and low over-crushing rate.

Based on the original toothed roll crushers, HXJQ Mining Machinery has optimized the structure and materials of rollers according to the customers' requirements, so that to adapt the nature of hard gangue and special working conditions and ensure the normal production of coal enterprises.

Traditional toothed roll crusher is usually driven by double-motors. Two sets of motors, couplers and reducers are adopted to drive the independent rollers so that the rollers have the power to crush large coal materials.

The coupler is applied between reducer and rolls to transfer torque. And the toothed rollers and drive system are connected with the machine frame respectively to eliminate the vibrating of toothed roll crusher.

Traditional toothed roll crusher with ring structure has the advantages of stable and reliable performance, and the disadvantages of low wear resistance and hard to replace. Once the traditional toothed roll crusher is damaged, it must be returned to the factory for overhaul.

The traditional rollers are connected by the bolts and tooth-holders, which offers small bearing capacity. Therefore, the traditional toothed roll crushers are mainly applied in the clean-coal crushing process, because the raw coal will cause damage to roll crusher teeth.

In terms of tooth position, the roll crusher teeth are set in the peripheral direction, adopting the setting form of large tooth alternating with a small one. Under the premise of normal discharging size, the crushing force of roller can be improved efficiently, so that to increase the capacity, wear-resistance and service life.

As the picture shows, the new-type tooth-holder adopts the form of regular octagon. The toothed rollers and toothed holders are connected by the flat kay and socket head cap screws (the traditional ones are connected by bolts).

The contacted areas between tooth and toothed holders are processed and improved completely, and torque is transferred by flat key so that can prevent the socket head cap screws from the shearing force of coal materials. And the screws can be firmer and more reliable.

Meanwhile, the fastening bolt and the toothed roller holder are connected by the screw fastening blocks, which makes that the joint strength is ensured, and the interchangeability and the replaceability are also reliable.

The teeth are the main wearing parts of the toothed roll crusher, so it is very necessary to choose a suitable material. Therefore, it is required that the material should have enough hardness, toughness, impact resistance and wear resistance. Also, the following machinability and weldability should be considered.

When parts of high manganese steel are impacted repeatedly, the surface of parts gets changed, and the hardness increases rapidly, which can reach up to HRC54. It will improve the wear resistance significantly, but the inside of parts keeps flexibly. These are the main features of high manganese steel.

However, the toothed roll crushers crush coal materials by shearing and stretching, along with less impacting and squeezing, which makes high manganese steel can't play its advantages to enhance the hardness and strength. Therefore, high manganese steel is not suitable for making teeth.

To better improve the wear-resisting performance of teeth, traditional toothed roll crusher always adopts the low-alloy quenched and tempered steel as the material to make tooth of roll crushers. In general, 40 Cr is used to process the tooth. After processing, the compressive strength and the service life of tooth are improved.

However, since there are only a few millimeters thick wear-resisting layer in the surface of the tooth, it is required to be overlaid frequently in the process of use, which brings a large workload to workers.

The teeth of the new toothed roll crusher adopt the integral casting molding process, optimizes the proportion of the main elements such as C, Cr, Mn, Mo, Si, Ni. The medium carbon bainitic steel is selected finally to be the material of toothed roll.

The medium carbon bainitic steel has good hardenability. After quenching and tempering heat treatment, bainite with high hardness and wear resistance is processed. It has an excellent comprehensive performance of HRC50 hardness and compressive strength of 1500 MPa.

In addition, the material of the entire toothed roller structure, including the toothed roller, the toothed roller holder and the threaded fastening block, is reasonably matched, so that the strength and hardness of each component are more balanced and reasonable.

The raw coal is first crushed to below 300mm by the jaw crusher, and then crushed to below 70mm by a toothed roller crusher, and then transported to the coal storage bin by the belt conveyor. After screening, the final product of 25~70mm is sold to the chemical company.

The customer said it requires technical improvement urgently in their worksite urgently to reduce the operating cost of the enterprise and the labor intensity of the workers and to ensure the normal operation of the production system.

Since the new toothed roller crusher was put into use, the equipment has been running stably, the discharge size of the products is significantly improved, the over-crushing rate reduces, and the block-forming rate is highly increased (see the following table).

It can be seen from the above table that the difference between the qualified products before and after the replacement is 18.2%, which greatly improves the output of qualified products and creates great economic benefits for the enterprise.

In addition, the new toothed roller crusher has high wear resistance, and the fastening bolt is not easy to loosen, which reduces a large amount of maintenance time, the labor intensity of workers, and the maintenance cost of the coal crushing process.

With the transformation and upgrading of the coal industry, it is an inevitable trend to vigorously develop coal chemical industry. The coal chemical industry has strict requirements on the particle size of coal, which puts higher requirements on the crushing equipment.

The new toothed roller crusher can optimize the crushing operation of the raw coal by a series of optimizations on the structure and material of the toothed roller. It has a high block rate and a small maintenance amount. With the obvious technical advantages, the promotion prospects of new-type toothed roll crusher are broad.

double toothed roll crusher with high quality real-time quotes, last-sale prices

Double toothed roll crusher with high qualityIntroduction Overview2PGC double tooth roll crusher is double roll type, roller surface shape is coarse tooth roller, tooth roller suitable for brittle and soft material coarse, medium broken. The product with high efficiency, energy saving, environmental protection and other advantages become the preferred equipment to replace imported thermal power plant crushing equipment.The double tooth roller crusher mainly uses the special wear-resisting tooth roller high speed revolving to split the material to break, has formed the high productivity mechanism.Has the advantages of small volume, high crushing ratio, low noise, simple structure, convenient maintenance, high productivity, broken material granularity, crushing rate, convenient maintenance, overload protection, sensitive, safe and reliable.ApplicationDouble teeth roll crusher for ore, coal, cement, silicate, glass, ceramics and other industries, is suitable for crushing medium hardness following brittle materials, mainly used for ore crushing operations.Advantages1.Crushing ratio of large, broken material moisture without any requirements.2.Equipped with hydraulic automatic retraction device, can effectively prevent the material on the toothed roller damage.3.Equipped with intelligent cleaning device, can automatically remove the crusher cavity wall adhesion material.4.The use of mechanical, electrical, hydraulic and other multiple protection devices and chain devices to prevent power overload, safe and reliable.5.Tooth roller spacing adopts hydraulic adjustment, tooth roller bearing centralized lubrication.6.Toothed design optimization, high efficiency and low consumption,a uniform particle.7.Power consumption is one-half of hammer crusher, energy saving.8.Through the control of the particle size and adjust roller gap,to change the output.9.Our company can design and product according to the hardness of the material,t he parameters of roller press are designed by testing the material bearing capacity.Installation and commissioning1) to strengthen the mining of iron removal work. Non-crushed material (drill head and other objects) fall into the roll will damage the roller crusher, resulting in a parking accident. So in the roller crusher should be installed before the iron removal device, hammer counter-break.2) sticky material is easy to plug the crushing space, in the process of blocking the fault should be parking, not in the operation of poking mine.3) When dealing with the material containing large chunks, it should be noted that large pieces of ore easily squeezed out from the broken space to prevent wounding or damage to equipment.4) roller crusher running for a long time, due to the large wear on the roll surface, will cause the product size is too small, then pay attention to adjust the discharge port or equipment maintenance.5) to strengthen the inspection of the equipment, the lubrication of the equipment on time to refuel, to maintain good lubrication equipment.MaintainTooth roller crusher work to pay attention to the following points:1, in addition to the crusher installed in addition to the mine to remove the iron device. When the non-crushed material (drill bit and other objects) into the roller between the crushing machine will cause damage, resulting in parking accidents.2, some sticky material will clog the crushing chamber, in the crushing chamber to clean up when the first stop and then clear.3, tooth roller crusher in the processing of large pieces of material, to prevent large pieces of material from the crushing chamber to fly out to damage the equipment or hurt others.4, in the tooth roller crusher work for a long time, the roller surface wear and tear, which will cause the material size is too small, so pay attention to adjust the discharge port or equipment maintenance.5, to fully after the work of the tooth roller crusher to check, to strengthen the lubrication of parts and fasteners fastening work.Technical parameter tableModelRoller diameter(mm)Roller length(mm)Maximum feed size(mm)Discharge size(mm)capacity (t/h)Power(KW)Wight(kg)size2pgc40025040025080-10010-505-205.52130024009506502pgc400400400400180-26010-5015-307.521800240012506502pgc450500450500200-50015-10030-607.523800266019008262pgc600750600750300-60020-12060-10011272002780306513102pgc600900600900300-60030-15080-12018.5278004500190013502pgc80010508001050500-80030-150100-160222126002550205011002pgc900900900900600-90030-200150-200222135002780410015502pgc10157601015760700-95030-200150-200452188007800320019802pgc1200 0800-105030-200200-30055252000801045002050

2PGC double tooth roll crusher is double roll type, roller surface shape is coarse tooth roller, tooth roller suitable for brittle and soft material coarse, medium broken. The product with high efficiency, energy saving, environmental protection and other advantages become the preferred equipment to replace imported thermal power plant crushing equipment.

Has the advantages of small volume, high crushing ratio, low noise, simple structure, convenient maintenance, high productivity, broken material granularity, crushing rate, convenient maintenance, overload protection, sensitive, safe and reliable.

Double teeth roll crusher for ore, coal, cement, silicate, glass, ceramics and other industries, is suitable for crushing medium hardness following brittle materials, mainly used for ore crushing operations.

1) to strengthen the mining of iron removal work. Non-crushed material (drill head and other objects) fall into the roll will damage the roller crusher, resulting in a parking accident. So in the roller crusher should be installed before the iron removal device, hammer counter-break.

4) roller crusher running for a long time, due to the large wear on the roll surface, will cause the product size is too small, then pay attention to adjust the discharge port or equipment maintenance.

1, in addition to the crusher installed in addition to the mine to remove the iron device. When the non-crushed material (drill bit and other objects) into the roller between the crushing machine will cause damage, resulting in parking accidents.

4, in the tooth roller crusher work for a long time, the roller surface wear and tear, which will cause the material size is too small, so pay attention to adjust the discharge port or equipment maintenance.

toothed roll crusher|teeth roller crusher-stone crushing machine - henan fote machinery co., ltd

Toothed roll crusher is a new product independently researched and developed by our company and it is suitable for crushing the raw coal including gangue in large-sized coal mines and coal dressing plants in coal, metallurgy, mine, chemistry and building material industry. Toothed roll crusher has big crushing capacity, the electromotor and the reducer are connected with torque-limiting hydraulic coupler to avoid dynamic overload and the sensor adopts overload protection, so that it is safe and reliable.

The space between the pin rolls adopts hydraulic adjustment and the bearings of the pin rolls uses central lubrication. The tooth from adopts optimized design and the pulling and cutting force can conduct selective crushing with high efficiency, low energy consumption and even discharging. Toothed roll crusher has the advantages of small size, big crushing ratio, low noise, simple structure and convenient maintenance and the features of high productivity, even granularity of the crushed materials, low over-crushing rate, flexible overload protection and safety and reliability.

This toothed roll crusher is mainly composed of transmission device, frame, crushing roll, mechanical spring device and link gear. It mainly relies on the high-speed revolution of the unique wear-resisting rolls to split and crush the materials, thus forming high-productivity mechanism.

Model Roller diameter mm Roller length mm Max. Feeding Size mm Discharging sizemm Output t/h Motor power (kw) Total weight(t) Overall dimension LWH mm 2PGC600500 600 500 200-450 15-100 30-60 4P 112 3.8 24501800950 2PGC600800 600 750 300-600 20-120 60-100 4P 18.52 7.2 450019001350 2PGC8001000 800 1000 500-800 30-150 100-160 4P 222 12.6 255020501100 2PGC10001000 1000 1000 700-950 30-200 150-200 6P 452 18.8 278041001550 2PGC12001200 1200 1200 800-1050 30-200 180-250 6P 552 29.5 278032001980 2PGC15001200 1500 1200 1000-1150 30-200 200-300 6P 752 38.6 801045002050

Toothed roll crusher is a new product independently researched and developed by our company and it is suitable for crushing the raw coal including gangue in large-sized coal mines and coal dressing plants in coal, metallurgy, mine, chemistry and building material industry. Toothed roll crusher has big crushing capacity, the electromotor and the reducer are connected with torque-limiting hydraulic coupler to avoid dynamic overload and the sensor adopts overload protection, so that it is safe and reliable.

The space between the pin rolls adopts hydraulic adjustment and the bearings of the pin rolls uses central lubrication. The tooth from adopts optimized design and the pulling and cutting force can conduct selective crushing with high efficiency, low energy consumption and even discharging. Toothed roll crusher has the advantages of small size, big crushing ratio, low noise, simple structure and convenient maintenance and the features of high productivity, even granularity of the crushed materials, low over-crushing rate, flexible overload protection and safety and reliability.

This toothed roll crusher is mainly composed of transmission device, frame, crushing roll, mechanical spring device and link gear. It mainly relies on the high-speed revolution of the unique wear-resisting rolls to split and crush the materials, thus forming high-productivity mechanism.

Model Max. Feeding Size mm Discharging sizemm Output t/h 2PGC600500 200-450 15-100 30-60 2PGC600800 300-600 20-120 60-100 2PGC8001000 500-800 30-150 100-160 2PGC10001000 700-950 30-200 150-200 2PGC12001200 800-1050 30-200 180-250 2PGC15001200 1000-1150 30-200 200-300

double-toothed roller crushers for difficult materials

In recent year, mainly as a result of environmental problems, the raw material crushing sector has often had to use quarries in which the materials are imperfect or mixed with soil. This has made work difficult to traditional crushers, such as impact or jaw crushers, because they are often required to process materials for which they have not been designed.

Bedeschi machines have been installed in difficult location worldwide. The company promotes the spread and development of double-toothed roller crushers, which are employed in many different fields: cement plants, mining firms, brick and tile factories and company specialized in waste processing scrap material. They are basically very simply machines; they consist of two toothed rollers turning in opposite directions and the material to be crushed is made pass between them. The material is not crushed through compression but through a combination of shear and tensile stresses.

The processing system of the double-toothed roller crusher makes it possible to crush any type of raw material from hard (limestone and rock) to soft (clay, soil and mud) or even elastic-like wood or rubber tyres. The rotation speed, especially if compared to traditional crushers, is very low; so low, in fact, that tip speed is under 3 m/s.

These crushers have turned out to be particularly effective in situations where other crushers experience problems. They are ideal for processing wet, sticky materials, and blocks of hard material mixed with soil, in addition to crushing ordinary hard materials. Under these conditions, traditional crushers clog. Double-toothed roller crushers are equipped with scrapers, which keep the grooves and the work surface perfectly clean.

These crushers are invaluable for crushing clay, soil and sticky materials containing up to 30 % moisture content or rocks covered with a layer of soil, a situation that, as mentioned earlier, is often encountered due to environmental restrictions imposed on quarries. The majority of cement plants set up in the 1990s in the Far East where, because of the frequent rain, raw materials are very moist, are equipped with clay crushing systems with double roller crushers; most of them supplied by Bedeschi. These machines allow a maximum reduction ratio of ten at each crushing stage.

They can act as primary or secondary crushers and can be installed to suit any required arrangement, even one on top of the other, with the primary crusher discharging directly onto the secondary crusher.

The gap is adjusted in the factory according to project requirements but can be easily changed after the machine has been put into service, to improve or change crushing parameters. The roller gap of Bedeschi crushers can easily be adjusted to individual preferences.

The study and dimensioning of teeth is particularly important. Bedeschi technical staff, thanks to their calculation models defined over many years of experience, establish the characteristics and shapes that most suit the material to be crushed and the customers outlet size requirements. The most important and qualifying tooth characteristics are:

These crushers, due to their special crushing method, are characterized by their relatively low power consumption compared to traditional crushers. Many applications and tests confirm an average power absorption of 0.3 to 0.4 kWh/t.

Their special design, featuring an external reduction unit, allows compact sized machines to be made, which can be installed where space is at a premium; installations in tunnels are a particularly significant example.

Alfa Laval, irontrybex - stock.adobe.com; Nitta Corporation of Holland; ANDRITZ AG; Picture: Bedeschi; Namur; Brkert Fluid Control Systems; Profibus Nutzerorganisation; Ecoclean; BASF ; MOL Group ; malp - stock.adobe.com; Sinopec ; IFG Asota; Feige Filling; Emerson; Goodvibes Photo - stock.adobe.com; Gea; Steriline; Ima; Achema Pulse; WMFTG; Thordon Bearings; Leybold ; Pixabay; Ldige; Solvay; Siemens; Siemens Energy; Siemens Energy

mid-range rolls crushers tough on any material

No matter what sector you work in, we know there is no room for error. A good crusher has to deliver close product size distribution first time, every time. When this is what you need, you cant go wrong with an Essa Rolls Crusher the most uncomplicated and durable mid-range secondary crushers available. They come with contra-rotating rolls to produce material with a tight size envelope containing minimum of fines. This gives you consistent quality, accurate size distribution, and very little dust. You get the option of plain or toothed rolls to suit a range of materials.

As well as giving you fast and accurate results, you need a crusher thats safe and easy to use. Essa Rolls Crushers have fitted feed hoppers, easily accessible aluminium sample draws, simple stop/start buttons, and motor protection.

Large crushed output with minimal cost - we know thats the challenge of any plant or laboratory involved in sample reduction. Rolls crushers have been widely used for years and are the best when it comes to close product size distribution and low maintenance costs. Just a quick look at the practical design features and youll see that productivity, quality, value and usability are all taken care of. They wont let you down.

For laboratory applications, you cant go wrong with this rugged and low maintenance crusher. Essa RC2000 is a proven mid-range secondary rolls crusher designed for fast and controlled size reduction of various sample types. With a tight footprint, its the smaller of the two rolls crushers in our Essa fine crushing range.

Easy to install The standalone configuration of the RC2000 allows for simple and low-cost installation. Its mounted on a sturdy floor stand and fitted with a feed hopper and easily accessible aluminium sample draw. This ergonomic design makes it easy to use and offers your workers greater protection.

If youre looking for a larger feed size, try the Essa RC3000. This rolls crusher is a dependable and sturdy mid-range secondary crusher that has a maximum feed size of 40 mm. Its also packed with considerably more power.

Floor or bench mount Weve made RC3000 versatile, giving you two installation options to choose from: a floor mount standalone version suitable for batch use, or a low-profile bench mount version. If you need continuous use, such as in mechanical sampling plants, automated laboratories or pilot plants, the bench mount version is the ideal configuration for you.

Ergonomics Like the smaller model, RC3000 is fitted with a range of safety and usability features. Your workers will appreciate the contra-rotating rolls, fitted feed hopper, easily accessible aluminium sample draw, mesh guarding, and dust extraction point.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

laboratory-scale validation of a dem model of a toothed double-roll crusher and numerical studies - sciencedirect

A DEM model of a toothed double-roll crusher was established based on bonded particle model.Validation in terms of product size distribution was conducted for three groups of tests.The effects of rotation speed and structure of rolls on the crushing process were investigated.The breakage mechanism of the particle was discussed based on fracture dynamics.

A discrete element method (DEM) model of the crushing process of a toothed double-roll crusher (TDRC) is established using the bonded particle model. DEM results and experimental data are compared quantitatively and a relatively good agreement is observed. The effects of rotation speed and structure of crushing rolls on the performance of TDRC are investigated numerically. The results show that when the rolls' speed is relatively high, the nipping condition would be improved, and more cracks could be created to release the increasing strain energy, generating more fractions of small sizes in the products. But, when rolls' speed exceeds 150rpm, the crushing performance would not be significantly improved. A reasonable working gap and better nipping behaviour are obtained using the spiral-tooth-roll or the staggered-tooth-roll. The validated DEM model could be applied to gain a fundamental understanding of the crushing mechanisms of TDRC.