crushing river rock with a roll crusher mining crushing

roll crushers - takraf gmbh

TAKRAF roll crushers are designed for capacities of up to 14,000 t/h and are driven by powerful drive units in order to even crush hard or ductile material without stalling. The crushing process creates a minimum of fines in the product and can also handle sticky and/or wet material without clogging of the rolls. The machines can be employed for medium hard material types up to 200 MPa compressive strength; for example: coal, ore, limestone, overburden and oil sands.

Roll crushers are often fed by apron feeders that direct feed material between a fixed and a moveable roll. The two crusher rolls, equipped with crushing segments, rotate inward and crush oversized material, while fine material passes the crusher without additional crushing. The adjustable gap between the crusher rolls defines the size of product material that exits the other side and falls towards the outlet chute.

If tramp or oversized material is fed to the crusher, one hydraulically supported roll (moveable roll) will disengage or release temporarily to let the foreign material pass and then return to its normal position and resume operation. If the foreign material is unable to pass, the moveable roll will remain in its extended position while sending a signal to stop the feeding process. In addition, a safety coupling can also react in the event of shock loads.

Our largest roll crushers are equipped with TAKRAF designed and developed gearboxes that are specifically applicable to heavy-duty crushing applications at up to 1,500 kW of motor power. Each gearbox is manufactured and tested at our workshop in Lauchhammer, Germany.

Based on TAKRAF's significant experience in crushers and crushing plants, the world's second largest roll crusher for ductile and abrasive oil sands, with hard rock of up to 200 MPa, was successfully installed into four separate existing crushing plant locationsto crush lumps of up to 2,500 mm down to a conveyable size.

roller crusher | single/double roll crushers - jsxc mine

Roller crusher is a very old crushing equipment that appeared in 1806, and its structure is simple. It can crushers iron ore, Quartz Stone, rock gold, rock tantalum niobium ore, rock tin ore, rock tungsten ore, manganese ore, ilmenite ore, K-albite, limestone, river pebbles, copper ore, bauxite, barite, basalt, etc. Therefore the roll crusher is one of the most widely used crusher machines in the mining industry.

Rock Roll crusher is fine crusher equipment that similar to the hammer crusher. It can crush the compressive strength of less than 160 MPA of materials. Medium feed size, and adjustable discharge size. With the characteristic of low maintenance costs, low requirements for water, reliable performance, less power consumption, less dust, low noise and so on.

Stone roll crusher can be divided into single-roll, double-roll and multi-roll several types according to the number of rollers. According to the shape of the roll surface, have two kinds, smooth roll and tooth roll. The former is suitable for medium and fine crushing of medium hardness ores. While the latter is suitable for coarse and medium crushing of Brittle and soft ores.

The material falls between the two rollers through the feeding opening to squeezing and crushing. Then the finished material falls naturally. In the case of hard or no broken, the role can automatically retreat under the action of hydraulic cylinder or spring. The gap between the roller increase, and the hard or not broken material fall that can protect the machine from damage. The relative rotation of the two rollers have a certain gap, change the gap, you can control the product discharge granularity. Double-roll crusher is the use of a pair of opposite rotation of the Round Roller, four-roll crusher is the use of two pairs of opposite rotation of the Round Roller crushing operations.

3. If the feed material is not uniform along the length of the roller, the roller surface will not only wear quickly but also wear unevenly at every point. The annular groove appears will damage the normal crushing work, the particle size of a crushing product is not uniform. Therefore, in addition to the roller crusher used for coarse crushing, the medium and fine crushing roller crusher is usually equipped with a feeder machine to ensure continuous and uniform feeding. And the length of the feeder is equal to the length of the roller that makes the feed is uniform along the direction of the length of the roller.

4. Reasonable maintenance and proper operation can ensure long-term continuous work, reduce parking time. Only the normal management and daily check the normal working conditions, can prevent failure and ensure continuity of service.

(1) Pay attention to the fastening of the bolts of each component and tighten them immediately if found loose; (2) Before the work must start the crusher, wait for the speed in normal, then feed materials. The procedure is opposite when stopping; (3) Check the outlet regularly and remove the blockage if found; (4) Pay attention to check the wear degree of the wearing parts, at any time pay attention to the replacement of worn parts; (5) No overload and the electrical instruments keep under constant care; (6) The bearing oil should be timely, and do not make the bearing oil leakage; (7) Control the bearing temperature, the temperature rise should not be higher than the surrounding air 25 ~ 30 C; (8) Dust and other materials should be removed from the underframe plane of the movable device to prevent the movable bearing from moving on the underframe when the roller crusher encounters unbreakable materials, which may cause serious accidents.

The roller crusher composes of a roller wheel, roller supporting bearing, pressing and adjusting device and driving device. The crushing roller is the main working mechanism of the crusher, which is composed of shaft, wheel hub and roll cover. The wearing degree of roll top has a great influence on the working efficiency of roll crusher. Only when the roll top is in good condition, the crusher can get higher production capacity. Because of the importance of roller, it is of great significance to understand the factors affecting roller wear and correct repair of roller.

(1) The material is distributed evenly as far as possible to reduce the wear degree of the ring groove, and roller skin on the surface of the roller; (2) In the operation of the crusher, especially in the process of coarse crushing. Attent to the size of the ore blocks, to prevent the ore blocks from being too large. It will make severe vibration of the crusher, thus seriously wearing the roll skin; (3) The selection of roller skin with good wear resistance can reduce the wear degree of roller skin and prolong the service life of Roller; (4) the length of the feeder shall be the same as the length of the rollers to ensure uniform feeding along the length of the rollers. In addition, in order to continuously feed the ore, the speed of the feeder should be 1-3 times faster than the speed of the stick; (5) Often check the size of the broken product and move one of the rollers along the axis for a certain period of time, the distance is about 1 / 3 of the size of the ore.

Double Roll crushers are the most common type of roll crushers. The crusher machine uses two opposite rotating rollers to crush the material. It is composed of an electric motor, support, a fixed roller, a movable roller, a safety spring, etc. With smooth and serrated surfaces. The bearings of the active rollers can move along the frame which supported by strong safety springs. The bearing will remove out and spit out the article if the feed material is very hard. The roll surface has smooth and sawtooth.

Two Roll surface is smooth that mainly play the role of extrusion grinding crushing on the material. This equipment often uses for clay, coal, clinker and limestone and other materials in the fine crushing work. The roller surface with the sawtooth of the two rollers. The machine mainly plays the role of cracking and tearing. The equipment is mainly to complete the bulk crushing of materials. The smooth surface of one roll and the sawtooth of the other roll that mainly to play the role of extrusion, bending and grinding on the material. This type of double-roller crusher mainly uses to crushing clay and coal.

If you know the price of a roller crusher machine. Please contact us, we are the stone crusher manufacturer who sale jaw crusher, cone crushing, impact crusher, crushing and screening equipment, and sand making/washing machine.

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

choosing the right rock crushing equipment

Stone crushing can be classified into four stages depending on the degree to which the starting material is fragmented. These four stages are primary, secondary, tertiary and quaternary stages. Primary and secondary stages involve crushing of coarse materials while the tertiary and quaternary stages involve the reduction of ore particles to finer degrees. Activities at the primary stage will depend on gyratory, jaw or impact crushers. Cone crushers, roll crushers and impact crushers are mostly used at the secondary stages. The tertiary and quaternary stages mostly require the utilization of cone crushers, although some functions may require vertical-shift impact crusher. In order to control the size and quality of the product and at the same time reduce wastage, you must ensure that the reduction of aggregates is evenly spread over the four stages.

A gyratory crusher consists of a concave surface and a conical head constructed from heavy steel casting. It works by using a mantle that gyrates within a concave bowl. This rock crushing equipment uses compressive force to fracture the rock and this happens when the mantle makes contact with the bowl during gyration. Gyratory crushers are often built into a cavity in the ground and are mostly used to crush rocks that have high compressive strength.

A jaw crusher also uses compressive force and the materials are allowed into a gap at the top of the equipment between two jaws. One of the jaws is fixed while the other reciprocates by moving back and forth relative to the stationary one. The gap between the two jaws is known as the crushing chamber. The moving jaw exerts a compressive force against the stone in the chamber causing it to fracture and reduce. The rock remains in the jaws until is small enough to move down the chamber to the opening at the bottom. Jaw crushers can work on a range of stone from the softer ones like limestone to harder basalt or granite.

A cone crusher is similar to a gyratory crusher because it operates using a mantle that rotates within a bowl, but it has less steepness in the crushing chamber. It has a short spindle which is supported by a curved universal bearing located beneath the cone. They use compression force to break the rock between the gyrating spindle and the enclosing bowl liner. The rock becomes wedged and squeezed as it enters the top of this rock crushing equipment. The cone crusher breaks large pieces of ore once into smaller particles that fall to a lower position where they are broken again. The pieces are continually crushed until they are small enough to move through the narrow opening at the bottom of the crusher.

Roll crushers are a compression-type reduction crusher with two drums rotating about a shaft. The gap between the drums is adjustable. The particles are drawn into the crushing chamber by the rotating motions of the rolls and a friction angle is formed between the particles and the rolls. The stone fractures from the compression forces presented by the rolls as they rotate. The crushed particles are then forced between the rotating surfaces into the smaller gap area. Roll crushers are mostly used in smaller scale production to crush ores that are not too abrasive. This type of rock crushing equipment gives a very fine product size distribution with very little dust production.

Impact crushers do not use force to crush materials, instead, they use impact. The material is contained within a cage that has openings on the bottom or side to allow for the crushed materials to escape. Impact crushers can be classified into two categories: vertical shaft impact crushers (VSI) and horizontal shaft impact crushers (HSI).

VSI crushers use high-speed rotors with wear resistant tips that catch and throw the feed stone against anvils lining the crushing chamber. Rock is fractured along its natural fissures when its thrown against the anvils to produce materials with consistent cubical shapes.

The HSI crusher has a shaft that runs on a level plane through the crushing chamber. It works by impacting the rock with hammers that are fixed on a spinning rotor. It also works on the principle of throwing the stone to break the rock. Horizontal shaft impact crushers can be primary or secondary. They are better suited for softer, less abrasive stone in the primary stage and more abrasive and harder stone in the secondary stage.

double roll crusher ,roller crusher china supplier ,walker mining

Product Introduction Double roll crusher belongs to a fine crusher that follows primary or secondary crusher and is used for secondary or tertiary reduction. It is similar to hammer crusher that can crush materials with compressive strength 160MPa. The feed size of double roll crusher is medium, and the output size is adjustable. It has the characteristics of low maintenance cost, low moisture requirement, reliable performance, low power consumption, low dust and low noise.

Double roll crusher is used for the crushing or medium-hard rock as well as for sticky and soft materials, i.e. iron ore, quartz stone, rock gold, rock tantalum niobium ore, rock tin ore, rock tungsten ore, manganese ore, ilmenite ore, potash albite, limestone, river pebble, copper ore, bauxite Ore, barite, basalt, etc.

Structure Double roll crusher is mainly composed of 2 rollers, driving, pressing & adjusting devices and roller support bearings. One roller is fixed and the other is adjustable. The gaps between the two rollers decide the discharge particle size. The minimum discharge particle size can reach 0-1 mm or 0-2 mm.

Working Principle The double roll crusher is working, while the material is fed into to machine, the machine uses the frictional force of the roller surface to bite the material into the crushing area. Then the material can be crushed by crushing or splitting. It is simple to say a roll crusher using compression to crush, with two rolls rotating about a shaft, towards the gap between the rolls. The gap between the rolls is set to the size of product that you need, with the realization that the largest feed particle can only be 4 times of the gap dimension. And when used for coarse crushing or the crushing ratio needs to be increased, teeth or grooves are often made on the roller surface to increase the splitting effect.

There is a wedge or shim adjusting device is installed between the two rollers. The top of the wedge device is equipped with an adjusting bolt. When the adjusting bolt pulls the wedge up, the wedge pushes the movable roller away from the fixed wheel, that is the gap between the two rollers. The larger the size, the larger the discharging granularity. When the wedge is downward, the gap between the two wheels of the movable roller under the action of the compression spring becomes smaller, and the discharging granularity becomes smaller. The shim device adjusts the discharge particle size by increasing or decreasing the number or thickness of the shim. When the shim is increased, the gap between the two rollers becomes larger. And when the shim is reduced, the gap between the two rollers becomes smaller and the output particle size becomes smaller .

Advantages and Features Inside equipped with a dust excluding plate, good sealing, avoid the splash of fine material, less dust, low operating noise. Simple & compact structure, light weight, small size, small footprint, convenient operation and maintenance. Inside equipped with an anti-dust plate, which has good sealing performance, avoiding the splashing of small materials after crushing, less dust, low working noise, and greatly improved working environment. Re-optimize the design of the grinding roller of the roller crusher, the equipment does not need to change the roller body for life Good flexibility and operational reliability High efficiency and low energy consumption. The grinding roller of the counter-roller crusher is equipped with replaceable wear-resistant liners, which are made of foreign advanced wear-resistant materials. It has the advantages of long service life, not easy to damage, and convenient maintenance. The continuous service life can reach more than one year. When the wear is serious, the cover can be replaced. So the maintenance is easy and the cost is low. The machine is equipped with a safety protection device. When an accidental metal iron piece enters the crushing cavity, the protection device will act and the iron piece leakage equipment will operate normally. The roller gap of the abrasive roller body of the roller crusher can be adjusted between 1mm and 20mm. After adjusting the gap according to the requirements of the crushing particle size, the crushing particle size can be reliably controlled.

types of rock crushers | quarry crushing equipment | kemper

Do you need to process sand, gravel, minerals, rock, or other aggregate products and have not yet purchased or leased crushing equipment? Theres no questionyou need to work with a capable and professional material handling equipment design and engineering company dedicated to selling, renting, and installing the best new crushers for your needs.

However, if youre new to the aggregate processing industry, you probably have a lot of questions about rock crushers. As foundational material handling equipment in all plants, crushers need to coordinate seamlessly with screens, conveyor systems, and washing equipment.

It is common to use multiple crusher types within a project and set them up as stations in a circuit format to perform the necessary material reduction work. In many cases, primary, secondary, and tertiary, and quaternary stations are installed to reduce the rock to the desired size, shape, and consistency.

For instance, if the final size of your product only needs to be between 4 inches and 6 inches, a primary jaw or impact crusher can accomplish your goals. However, you will likely require a much finer product, and that means incorporating up to threeor even fourstations with a variety of crusher types.

As the first stage in a crushing circuit following extraction from a mine site, (or in the case of recycled asphalt production, delivery to the RAP processing plant via truck transport), primary crushing reduces material to a size and shape that can be handled by the secondary crusher.

Typically, the minimum setting on most primary crushers will be about 4 to 6 inches, as noted above. Compression-style jaw, cone, impact crushers, and gyratory crushers are most often appropriate as primary crushing equipment types, though there can be overlap between primary and secondary crushers as far as suitable types.

In secondary crushing, reduction ratios become an essential consideration. Knowing just how fine you need your final output to be, along with the feed requirements of your tertiary or final reduction crushing station, will help you determine how much reduction needs to take place within this stage.

Cone crushers are often placed within the secondary crushing station because they are versatile in terms of feed, closed side setting, speed, and throw. With cone crushers, though, it is essential to operate them at consistent choked settings to keep productivity up.

The goal of the tertiary (third), quaternary (fourth) or final reduction stage of the crushing process is to size and shape rock or other material into a marketable product. Again, there may be overlap between stages in terms of which crusher styles work best.

Sandstone, limestone, gravel, and granite are arguably the most common aggregates used in the construction industry today, but these rocks have very different hardness and abrasiveness characteristics.

The answer might be three to four if youre talking about setting up stations in a complete rock crushing plant. Those are the primary, secondary, and tertiary/quaternary/final reduction rock crushers, which we covered above.

Of course, there are also different styles of rock crushers. Compression-style jaw and cone crushers, for example, fit into the various stations in a crushing circuit (depending on factors like the sizes, varieties, and hardness of the rock you need to crush, as well as the necessary output).

The number of crusher types in terms of style and configuration can be more challenging to quantify, as there are lots of ways to customize rock crushers. However, youll find four basic designscone, jaw, gyratory, and impact crushersoperating within many crushing plants.

Jaw crushers are also known as rock breakers and are used to break up larger, harder materials into more manageable pieces. They tend to do well with many different types of materials and dont display as much wear and tear as impact-style rock crushers. They also produce minimal fine materials and dust, though the finished product with this type of rock crusher almost always requires secondary crushing.

To learn more about jaw crushers, youll want to catch our previous blog post all about these tough pieces of material handling equipment and the most common questions operators have about jaw crushers.

Cone crushers can accept medium-hard to very hard and abrasive feeds that might be dry or wet, though not sticky (whereas gyratory crushers are better at handling softer, dryer feeds). Their output will be a relatively cubical product, with a reduction ratio of about 6-to-1 through 4-to-1.

Impact-style crushers include VSIs, as well as horizontal shaft impactors (HSIs), and are best used with less abrasive rock types, like limestone. These types of machines break apart material by the impacting forces of certain wear parts known as blow bars and impact plates or toggles.

Some operations also use impact-style crushers after they have already used a different type of rock crusher that produces a more elongated stone. This helps further shape the crushed material into a finer consistency with a more cubical nature.

Impact crushers tend to be less expensive than compression crushers (aka cone and jaw crushers, which we already covered) and have a higher reduction ratio. They can also break sedimentary deposit-type rockslimestone and similaralong natural lines, which rounds off sharp angles and weak edges. This can produce a result that is more sand-like in nature.

Drawbacks of impact crushers include their tendency to produce an excess of fine materials if used with softer rocks. Impact rock crushers can also require frequent part changes and can create a large amount of dust that can be an issue on some worksites.

Stationary plants have long been preferred because they feature a higher capacity and efficiency and lower production costs with easier maintenance. They also have historically featured a lower energy cost if you have on-site electricity, and no additional equipment is needed to move them from place to place.

Its true that portable material handling equipment already offers unmatched production flexibility. For instance, if you need to move your crushing plant more than once a year to multiple job sites, you are likely better off investing in portable equipment.

These self-contained plants are better suited to smaller projects and can be moved from project to project as necessary. They are often still not quite as efficient and have less capacity than stationary plants, but they can be more cost-effective in the long run if you have multiple projects in different areas.

Here at Kemper Equipment, we offer the best performing crushing equipment that will work hard to make any finished products you plan to produceincluding sand, gravel, fertilizer, specialty mineral products, recycled asphalt, salt, coal, and slagefficiently and affordably. Contact us today to discover how we can provide a custom-designed crushing circuit or retrofit a new rock crusher into your existing operation.

rock crushing rule of thumb

Gyratory crusher: feed diameter 0.75 to 1.5m; reduction ratio 5:1 to 10:1, usually 8:1; capacity 140 to 1000 kg/s; Mohs hardness <9. More suitable for slabby feeds than jaw crusher. [reduction by compression].

disadvantages of double roll crusher

For production of building aggregates, SBM can offer such core crushing machines like jaw crusher, impact crusher, cone crusher and sand-making machine. So far, we have developed 10 series which include over 100 machine models that can be matched freely so as to meet various demands on yielding and types of building aggregates.

SBM delivers the worlds most comprehensive range of Heavy-duty conveyor belts. Base on more than 30 years of experience in development, manufacture and applications know-how, SBM designed the unique belts and belt systems to meet specific end-user requirements for high performance and cost-efficiency.

SBM delivers the worlds most comprehensive range of Heavy-duty conveyor belts. Base on more than 30 years of experience in development, manufacture and applications know-how, SBM designed the unique belts and belt systems to meet specific end-user requirements for high performance and cost-efficiency.

According to customers requirements, SBM success in absorbing foreign experience and world-advanced technology, and in producing our vertical products, with self-owned intellectual property right. Now it has wide application in metallurgy, construction, chemical and mining industries, being the preferred equipments in grinding industry.

According to customers requirements, SBM success in absorbing foreign experience and world-advanced technology, and in producing our vertical products, with self-owned intellectual property right. Now it has wide application in metallurgy, construction, chemical and mining industries, being the preferred equipments in grinding industry.

Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary crushing and tertiary crushing process and it has become the ideal cone crusher for small capacity crushing plants of mineral ore processing industry and rocks processing industry.

Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary crushing and tertiary crushing process and it has become the ideal cone crusher for small capacity crushing plants of mineral ore processing industry and rocks processing industry.

Owning international advanced crushing technologies, the HGT Gyratory Crusher is a new-type intelligent coarse crusher with big capacity and high efficiency. Compared with traditional gyratory crushers, it boasts higher crushing efficiency, low using costs and convenient maintenance and adjustments, able to offer customers more efficient and intelligent coarse crushing solutions.

Every material processing equipment has its special functions, we also should make them to play their biggest role in the material processing plant. According to the different production requests, we specially divide all kinds of equipment into several processing fields, namely construction, mining, milling and accessory equipment field. So, it is convenient for our clients to choose and decide the right equipment in accordance with their special material processing field.

Bauxite mine is actually kind of ore minerals collectively formed mainly by gibbsite, a boehmite or a diaspore which can be used in the industry. Bauxite is widely applicated in both metal field and nonmetal field. Bauxite mine is the best material for producing aluminum. In nonmetal field, bauxite is mainly used as refractories, abrasives, and the raw materials for high alumina cemen.

Bauxite mine is actually kind of ore minerals collectively formed mainly by gibbsite, a boehmite or a diaspore which can be used in the industry. Bauxite is widely applicated in both metal field and nonmetal field. Bauxite mine is the best material for producing aluminum. In nonmetal field, bauxite is mainly used as refractories, abrasives, and the raw materials for high alumina cemen.

Copper ore a valuable mineral source for all countries. Copper ore is an ore which can produce copper metal by crushing in ore crushing plant, grinding in Ball mill and smelting in a furnace along with a piece of tin ore. SBM is a proessional manufacturer of copper ore crushing equipment and grinding equipment.

Copper ore a valuable mineral source for all countries. Copper ore is an ore which can produce copper metal by crushing in ore crushing plant, grinding in Ball mill and smelting in a furnace along with a piece of tin ore. SBM is a proessional manufacturer of copper ore crushing equipment and grinding equipment.

Gypsum is a very useful processed material. Gypsum rock was formed in geological time through the evaporation of seawater. More recently by-product gypsum is also available from flue gas desulphurisation; a process for cleaning up emissions from chimneys to reduce the quantity of sulphurous gases flowing into the atmosphere. Raw gypsum ore is processed into a variety of products such as a portland cement additive, soil conditioner, industrial and building plasters, gypsum wallboard and coagulant for food Tofu etc.

Gypsum is a very useful processed material. Gypsum rock was formed in geological time through the evaporation of seawater. More recently by-product gypsum is also available from flue gas desulphurisation; a process for cleaning up emissions from chimneys to reduce the quantity of sulphurous gases flowing into the atmosphere. Raw gypsum ore is processed into a variety of products such as a portland cement additive, soil conditioner, industrial and building plasters, gypsum wallboard and coagulant for food Tofu etc.

River stones are mainly river red stones or materials, These river mixed aggregates are mined, and then transported for the stone quarry for crushing. River stone crushing plant is the major crushing unit to process river stones like cobble rocks, pebble, sand & gravel, silica etc. It calls for crushing, screening and washing process.

River stones are mainly river red stones or materials, These river mixed aggregates are mined, and then transported for the stone quarry for crushing. River stone crushing plant is the major crushing unit to process river stones like cobble rocks, pebble, sand & gravel, silica etc. It calls for crushing, screening and washing process.

china mobile crushers plant|crusher mobile|portable rock crusher|mobile crushing plant|mobile crushing station|construction waste recycling plant-china hongxing machinery

To HXJQ customers, flexibility is everything. We offer a wide range of mobile crushers and screens, both tracked and wheeled, including jaw crushers, impact crushers, cone crushers, and screens for quarrying and construction projects.In order to bring the most powerful rock and ore crushers and screening plants to the most difficult of jobs, HXJQ have developed revolutionary machines with the highest levels of agility and mobility.

Whether you are looking to crush tonnes of hard rock or produce several sized aggregates with our high output screening plants, the versatility of our equipment and optional extras will ensure that we can always provide the right machine for you.

2. The portable crushing plant is used for Processing of topsoil and a variety of other materials; separation viscous to coagulation aggregate; construction and demolition industry; broken after the screening; quarrying industry.

MOBLIE IMPACT CRUSHER TECHNICAL PARAMETERS Model HX938F1210 HX938FW1214 HX1149F1315 HX1349HD1110 HX1349HD1315 TransportationLengthmm 12000 12000 13900 15450 15450 TransportationWidthmm 2550 2550 2900 2950 2950 TransportationHeightmm 3900 3900 4450 4500 4500 MaximumLengthmm 12500 12500 13900 15450 15450 MaximumWidthmm 3250 3260 3250 3250 3250 MaximumHeightmm 5100 5200 5200 5200 5200 Weightt 39 44 54 62 62 Crusher Model PF-1210 PF-1214 PF-1315 HD1110 HD1315 TheMaximumFeedingSizemm 350 350 500 400 700 Production Capacityt/h 70-130 100-180 130-250 112 280 Vibrating Feeder ZSW9503800 ZSW9503800 ZSW1104900 ZSW1304900 ZSW1304900 MainBeltConveyor B8008.5M B8008.5M B10009.5M B80011M B120011M Side-openingBeltconveyor(Optional) B5003.2M B5003.2M B6504M B6504M B6504M Genset(Optional)kw 320 320 400 320 440 IronSeparator(Optional)kw RCYD(C)-8 RCYD(C)-8 RCYD(C)-10 RCYD(C)-8 RCYD(C)-12 MOBLIE JAW CRUSHER TECHNICAL PARAMETERS Model HX938HD80 HX1149HD98 HX1349HD110 HX1349HD125 Transportation Length(mm) 12600 13500 14500 15200 Transportation Width(mm) 2600 2700 2800 2900 Transportation Height(mm) 3870 4200 4450 4500 Maximum Length(mm) 12500 14000 16100 14700 Maximum Width(mm) 4100 4500 5100 5100 Maximum Height(mm) 4100 4900 5000 5300 Weight(t) 39 57 55 65 Tire Configuration Dual-axial Dual-axial Dual-axial Dual-axial Jaw Crusher HD80 HD98 HD110 HD125 Maximum Feeding Size(mm) 500 550 660 800 Discharge Opening Size(mm) 50-150 75-175 100-200 125-225 Capacity(t/h) 85-275 110-350 215-510 280-650 Vibrating Model ZSW38095 ZSW420110 ZSW490130 ZSW490130 Main Belt Conveyor B8008.5M B10009.5M B100011M B120011M Side-opening Belt conveyor(Optional) B5003M B6503.5M B6504M B6504M Genset(Optional) (kw) 200 250 270 400 Iron Separator (Optional) RCYD(C)-8 RCYD(C)-10 RCYD(C)-10 RCYD(C)-12

MOBLIE IMPACT CRUSHER TECHICAL PARAMETERS Model TheMaximum Feeding Size mm Production Capacity t/h HX938F1210 350 70-130 HX938FW1214 350 100-180 HX1149F1315 500 130-250 HX1349HD1110 400 112 HX1349HD1315 700 280 MOBLIE JAW CRUSHER TECHNICAL PARAMETERS Model Maximum Feeding Size(mm) Capacity(t/h) HX938HD80 500 85-275 HX1149HD98 550 110-350 HX1349HD110 660 215-510 HX1349HD125 800 280-650

rock crusher - eastman rock crusher

Granite is not easy to crush to sand, main equipment has PE-7501060 jaw crusher (coarse crusher), HP300 cone crusher (fine crusher), bin, 490110 vibrating feeder, B1000x22 conveyor belt, B1000x30m conveyor belt, B800x31 conveyor belt, 4YK2460 vibrating screen, etc. contact us!

In this case, we recommend the use of a PCZ1308 heavy hammer crusher with a feed size of 930x650mm, the feed particle size is less than 600mm, the motor power is 4P 132Kw, and the processing capacity of the equipment is 100-180t/h.

Eastman is a typical direct selling enterprise with green and standardized production plants. All the delivery of the equipment will be completed within the delivery period signed by the contract to ensure the smooth commissioning of the equipment.

Rock crushers have a wide range of suitable material to choose from, whether its soft or hard, or even very hard, rock crushers can reduce those large rocks into smaller rocks, gravel, or even rock dust.Here are some typical materials that break or compress by industry crushers, such as Granite, quartz stone, river pebble, limestone, calcite, concrete, dolomite, iron ore, silicon ore, basalt and other mines, rocks and slag.

Understanding the stages of crushing process and the types of crushers that best fit each stage can simplifies your equipment selection. Each type of crusher is different and used to achieve a certain end result.

Similarly, a certain output is expected at the end of each crushing stage for the next phase of the process. Aggregate producers who pair the correct crusher to the correct stage will be the most efficient and, in turn, the most profitable.

A jaw crusher is a compression type of crusher. Material is reduced by squeezing the feed material between a moving piece of steel and a stationary piece. The discharge size is controlled by the setting or the space between those two pieces of steel. The tighter the setting, the smaller the output size and the lower the throughput capacity.

As a compression crusher, jaw crushers generally produce the coarsest material because they break the rock by the natural inherent lines of weakness. Jaw crushers are an excellent primary crusher when used to prepare rock for subsequent processing stages.

Although the chamber is round in shape, the moving piece of steel is not meant to rotate. Instead, a wedge is driven around to create compression on one side of the chamber and discharge opening on the opposite side. Cone crushers are used in secondary and tertiary roles as an alternative to impact crushers when shape is an important requirement, but the proportion of fines produced needs to be minimized.

An impact crusher uses mass and velocity to break down feed material. First, the feed material is reduced as it enters the crusher with the rotating blow bars or hammers in the rotor. The secondary breakage occurs as the material is accelerated into the stationary aprons or breaker plates.

Impact crushers tend to be used where shape is a critical requirement and the feed material is not very abrasive. The crushing action of an impact crusher breaks a rock along natural cleavage planes, giving rise to better product quality in terms of shape.

Most aggregate producers are well acquainted with the selection of crushing equipment and know it is possible to select a piece of equipment based solely on spec sheets and gradation calculations. Still, theoretical conclusions must always be weighed against practical experience regarding the material at hand and of the operational, maintenance and economical aspects of different solutions.

The duty of the primary crusher is, above all, to make it possible to transport material on a conveyor belt. In most aggregate crushing plants, primary crushing is carried out in a jaw crusher, although a gyratory primary crusher may be used. If material is easily crushed and not excessively abrasive, an impact breaker could also be the best choice.

The most important characteristics of a primary crusher are the capacity and the ability to accept raw material without blockages. A large primary crusher is more expensive to purchase than a smaller machine. For this reason, investment cost calculations for primary crushers are weighed against the costs of blasting raw material to a smaller size.

A pit-portable primary crusher can be an economically sound solution in cases where the producer is crushing at the quarry face. In modern plants, it is often advantageous to use a moveable primary crusher so it can follow the movement of the face where raw material is extracted.

The purpose of intermediate crushing is to produce various coarser fractions or to prepare material for final crushing. If the intermediate crusher is used to make railway ballast, product quality is important.

In other cases, there are normally no quality requirements, although the product must be suitable for fine crushing. In most cases, the objective is to obtain the greatest possible reduction at the lowest possible cost.

In most cases, the fine crushing and cubicization functions are combined in a single crushing stage. The selection of a crusher for tertiary crushing calls for both practical experience and theoretical know-how. This is where producers should be sure to call in an experienced applications specialist to make sure a system is properly engineered.

roller crusher | mineral crushing & aggregate processing - jxsc mining

Roll crushers crush the material use two opposite rotation of the rollers. The crushing is made up of electromotor, holder, fixed roller, movable roller and safety spring. The surface of the roller is mostly smooth. According to the number of rolls, there are single-roll, double-roll or multi-roll crushers. The double roll crusheris the most common rock stone crushing machine.

JXSC mining roller double crushers are simple in design and construction, low maintenance cost, low water requirement, reliable performance, less power consumption, less dust, low noise, and the discharging particle size can be adjusted.

The main roll crusher of JXSC Mining is a double-roll. It is a fine crushing which similar to a hammer crusher. Crushing the iron ore, quartz stone, rock gold, rock tantalum niobium ore, rock tin ore, rock tungsten ore, manganese ore, ilmenite ore, K-albite, limestone, river pebbles, copper ore, bauxite, Barite, Basalt.

The material falls between the two rollers through the feeding opening of the upper part of the equipment, and is brought into the gap between the two rollers by the action of friction and is gradually crushed.

When there is a hard material that can not be broken, the roller automatically gives way, so that the gap between the rollers increases, the hard material falls down, by virtue of the role of hydraulic cylinder or spring, the roller is restored to the original gap, thus protecting the machine, adjusting the gap between the two rollers, to control the maximum granularity of the product.

Mining Equipment Manufacturers, Our Main Products: Gold Trommel, Gold Wash Plant, Dense Media Separation System, CIP, CIL, Ball Mill, Trommel Scrubber, Shaker Table, Jig Concentrator, Spiral Separator, Slurry Pump, Trommel Screen.

roll crusher with stable performance | fote machinery

Applied materials: coal, pebble, limestone, dolomite, granite, construction waste, pebbles, glass, cement clinker, basalt, iron ore, quartz stone, coal gangue, etc. Its advantages: high capacity, ability to handle wet, sticky feeds.

Roll crusher, as one of the most economical and practical crushers, is designed to handle the first and second crushing of friable minerals and stones such as coal, clay, coal gangue, limestone, slag, cement clinkers, and shale, etc.

According to the number of rollers, the FTM roll crushers can be divided into three types: single roll crusher, double-roll crusher, and multi-roll crusher. And the most common one is double-roll crusher.

Roll crusher is applied more widely than other crushers because of its small volume and cheap price. With the adjustable discharging system, it can be used flexibly in coarse and fine crushing processes of the industries such as cement, chemical engineering, electricity, mining, metallurgy, building materials, and others.

Roll crushers can adjust the wedge device between rollers to control the feed and discharge size of the machine. Also, it is equipped with a spring device to protect the crushing machine and avoid shutdown caused by overload and iron passing.

When the adjustable bolt pulls the wedge upward, the wedge pushes the movable roller away from the fixed wheel, then the gap between the two rollers becomes larger, and the discharge port becomes larger, and vice versa.

The gasket device adjusts the size of the discharge by increasing or decreasing the thickness of the gasket. When the gasket is added, the gap between the two rollers becomes larger, and vice versa.

The unique structure of rollers makes selective crushing of the roll crushing equipment. Since minerals fed are crushed along its internal friable crack, the finished products are uniform with the cube shape.

The minerals are crushed under the force of rollers and machine body, and ores smaller than the gap between roller and machine frame (of single roll crusher) or roller (of multi-roll crusher) will pass directly without repeated crushing.

With the supporting CPU, operators can control roll crushing machines and monitor gaps between rollers, and clean up the crushing cavity through the central control room, which will help save energy of 30% to 50%.

The main working parts of the roller crusher is the cylindrical rollers. The rollers are supported by the fixed and movable bearings, and they are relatively rotating which are driven by the motor. The materials are crushed by the friction of the rotating rollers, and the finished products are discharged from the gap of the rollers.

The spring is used to balance the pressure generated between the rolls. If there are non-crushed materials falling between the two rollers, the compression spring of bearings can be pushed to make a large gap so that non-crushed materials can be discharged immediately.

The quality of the crushers has a great impact on its price. The high-quality equipment will cost more in terms of workmanship, technology, materials, etc. Meanwhile, it will have a long service life, low failure rate, and better performance, and bring more profit to investors.

In 2019, Fote has exported a total of 39 roll crushers to India, Indonesia, Zimbabwe, Vietnam, South Africa, the United States, Pakistan, the Philippines and other countries, mainly for coal, bentonite, rare earth ore, limestone, aluminum, manganese and others.

Exports of mining machinery have been booming in recent years and Fote has already opened markets in Africa, Southeast Asia, etc. Fote Heavy Machinery has supported foreign customers with low-price and high-quality roll crushing equipment, which has been popular among the majority of customers.

In recent years, the Indonesian government has taken actions to improve its infrastructure and promote economic development. As a result, Indonesia's demand for crushers has increased significantly.

The roll crusher produced by Fote has fine finished products and the best effect on sand making for river pebble. Due to its good finished product size, low powder content and low price, it is widely favored by Indonesian customers.

Firstly, Fote Heavy Machinery is a professional manufacturer of roller crushers. In order to improve the company's comprehensive strength, Fote has introduced international first-class production lines on the basis of original techniques.

Secondly, FTM produces various types of crushing equipment that is suitable for crushing, sand making and milling hundreds of minerals, and ensures excellent quality, good performance and low price.

Thirdly, Fote has provided patient and prudential after-sales service and all-round consideration for customers, and actively created high-tech crushing equipment to take the leading position in the international market.

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.

roll crushers | mclanahan

Roll Crushers are designed to handle the primary, secondary and tertiary stage crushing of friable materials such as coal, salt, clay, bauxite, limestone and other minerals of similar characteristics in the mining, power generation and numerous other industries. Roll Crushers are one of the most widely used crushers in the mining industry and have numerous advantages, such as high capacity, low headroom, low horsepower, the ability to handle wet, sticky feeds and the generation of minimum fines while producing a cubical product.

The simplified design gives these units excellent reliability and requires very little maintenance. Roll Crushers are designed with built-in tramp relief that allows for the passing of uncrushable materials while continuing operation and returning to the initial product setting.

Since patenting the first Single Roll Crusher in 1894, McLanahan has become an expert and leader in the industry in the design and manufacture of single and two stage Roll Crushers. The selection process for each application is based on extensive equipment knowledge and a wealth of test data developed in our research lab or through on-site testing.

McLanahan offers belt-driven Roll Crushers in four designs: Single Roll, Double Roll, Triple Roll and Quad Roll Crushers, which provide a substantial return on investment by operating at low cost and maximizing yield by generating minimal fines. The rugged design, which incorporates a fabricated steel base frame lined with replaceable abrasion-resistant steel liners, stands up to the toughest mineral processing applications while providing safe and simple operation, including an automatic tramp relief system to allow uncrushable objects to pass while the crusher remains in operation. These crushers are also versatile, allowing for adjustments in roll speeds and gap settings to meet most any application requirement.

Whether the application requires a single-stage or two-stage crusher, the forces necessary to perform the crushing remain the same: a combination of impact, shear and compression. The impact force occurs as the material enters the crusher and is impacted by the rotating roll. Shear and compression forces occur as the feed material is pulled between the crushing plate and/or crushing rolls.

Depending on the feed size, material is fed into the crushing chamber and encounters a single or a pair of rotating rolls. If a two-stage reduction is required, either a Triple or Quad Roll configuration can be used. In this scenario, the top stage of the crusher performs the primary reduction either by crushing the material between the roll and crushing plate or between a pair of rolls. The material is then fed directly between the two bottom-stage rolls for additional processing.

If a single-stage reduction is required, then depending on the feed-to-product-size ratio of reduction, either a Single or Double Roll Crusher can be selected. Regardless of the crusher type selected, Roll Crushers allow for the material to fracture along naturally occurring cleavage lines, which helps with minimizing fines generation.

Yes, it will. When a wet, sticky feed is fed to a two-stage crusher, you run the risk of plugging the crusher between the top and bottom stages. If a wet, sticky feed is anticipated and the ratio of reduction requires two stages of crushing, it is recommended that two separate single stages be used.

A good rule of thumb is: Single Roll Crushers have a 6:1 ratio of reduction, Double Roll Crushers have a 4:1, Triple Roll Crushers have a 6:1 on the top stage and a 4:1 on the bottom stage, and Quad Roll Crushers have a 4:1 on both the top and bottom stage.

Single Roll Crushers are typically used as primary crushers that provide a crushing ratio of up to 6:1. They crush materials such as ROM coal, mine refuse, shale, slate, gypsum, bauxite, salt, soft shale, etc., while producing minimal fines. Designed with intermeshing roll teeth and a curved crushing plate, they are extremely effective in reducing slabby feeds.

Double Roll Crushers provide a 4:1 reduction ratio. They are typically used as a secondary or tertiary crusher for materials such as ROM coal with refuse, limestone, gypsum, trona, shale, bauxite, oil shale, clean coal, coke, salt, quicklime, burnt lime, glass, kaolin, brick, shale and wet, sticky feeds. Each machine is custom engineered with roll elements and tooth patterns selected depending on theapplication requirements to produce a cubical product with minimal fines.

Triple Roll Crushers are ideal for producers who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, coke, glass, and trona operations, among others. Triple Roll Crushers combine a Single Roll Crusher with a Double Roll Crusher to form a crusher that is capable of achieving a 6:1 reduction ratio in the primary stage and a 4:1 reduction in the secondary stage while producing a cubicle product at high capacity.

Quad Roll Crushers are ideal for producers, including those with preparation plants, who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, lime, pet coke and potash operations, among others. Quad Roll Crushers are capable of achieving a 4:1 reduction ratio before feeding the crushed material to the secondary stage for an additional 4:1 reduction to make the final product.

type of crushers and their difference - jxsc mining

A crusher is a machine that is designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size of materials, or change the form of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials so that pieces of different composition can be easy for next step separation.

As an old Chinese saying goes One must have good tools in order to do a good job. selecting an appropriate crusher, or indeed any parts of processing equipment, is very important in every quarry operation. And understanding what each crusher type is used for and knowing some general efficiency tips and the proper way to feed these machines will lead to the best results in your mining processing. Of course, each type of crusher is different and each of them is used to achieve a particular result. Likewise, to obtain a specific output, each type of crusher requires different maintenance tasks to keep it running efficiently. Operators who can achieve this, along with a consistent feed to the crusher, will be the most efficient and, more importantly, the most profitable.

Jaw crusher is used as primary crusher, its reduction ratio is usually 6:1. It uses compressive force to break the material, this mechanical pressure is achieved by the two jaws of the crusher. It is called a jaw crusher because it works the same was a human jaw does-food goes into your mouth and your bottom jaw pushes the food up against your fixed-top jaw. Inside the jaw crusher, is consisting of two vertical jaws installed to a V form, one jaw is kept stationary and is called a fixed jaw while the other jaw, called a swing jaw, moves back and forth relative to it, by a cam or pitman mechanism. where the top of the jaws are further away from each other than the bottom, so it can use a constantly moving metal piece that crushes the stones on a situated metal piece in small movements. Jaw crushers are classified on the basis of the position of the pivoting of the swing jaw

The type of jaw varies, which makes the different jaw crushers preferred for certain projects. For example, the Dodge crusher is used for laboratory purposes and not as heavy duty machinery because it can get clogged too easily, making it useless for large-scale projects.

In the Dodge type jaw crushers, the jaws are farther apart at the top than at the bottom, forming a tapered chute so that the material is crushed progressively smaller and smaller as it travels downward until it is small enough to escape from the bottom opening. The Dodge jaw crusher has a variable feed area and a fixed discharge area which leads to choking of the crusher and hence is used only for laboratory purposes and not for heavy-duty operations.

The jaw crusher is usually made of cast steel because it is such a heavy-duty machine. Its outer frame is generally made of cast iron or steel. While the jaws themselves are usually constructed from cast steel. They are fitted with replaceable liners which are made of manganese steel, or Ni-hard (a Ni-Cr alloyed cast iron). Usually, both jaws are covered with replaceable liners. Also in some types, the liners can be turned upside down after a while, extending the replacement time.

Similar to a jaw crusher, the gyratory crusher pulverizers the stones by placing them between two manganese steel plates and going straight down. It does not rotate, rather it is powered by electricity. Gyratory crushers are used in mine or ore processing plants and they can be used for primary or secondary crushing. It crushes rocks by rotating the vertical shaft and crushing the rocks in a circular motion where they fall out the narrow bottom when they are small enough.A gyratory crusher is used both for primary or secondary crushing.

Cone crusher is similar in operation to a gyratory crusher, but with less steepness in the crushing chamber and more of a parallel zone between crushing zones. A cone crusher breaks material by squeezing the material between an eccentrically gyrating spindle, which is covered by a wear resistant mantle, and the enclosing concave hopper, covered by a manganese concave or a bowl liner. As the material enters the top of the cone crusher, it becomes wedged and squeezed between the mantle and the bowl liner or concave. Large pieces of the material are broken once, and then fall to a lower position (because they are now smaller) where they are broken again. This process continues until the pieces are small enough to fall through the narrow opening at the bottom of the crusher.

A cone crusher is suitable for crushing a variety of mid-hard and above mid-hard materials. The feed is dropped to the crusher from the top and it is crushed between the crushing chamber and the slowly rotating cone.

Cone crushers are mostly used for the large scale crushing in the mining industry. It has the advantage of reliable construction, high productivity, easy adjustment and lower operational costs. The spring release system of a cone crusher acts as an overload protection that allows tramp to pass through the crushing chamber without damage to the crusher.

Impact crushers involve the use of impact rather than pressure to crush material. The material is contained within a cage, with openings on the bottom, end, or side of the desired size to allow pulverized material to escape. There are two types of impact crushers: horizontal shaft impactor and vertical shaft impactor. Impact crushers are suitable for materials that are soft or easily cleaving from the surface. The crusher consists of a fast spinning rotor and beaters attached to the rotor. The feed is entering to the crusher from the top and crushing starts immediately when the feed is impacted with beaters towards the crushers inner surface. Impact crusher can also be equipped with a bottom screen, which prevents material leaving the crusher until it is fine enough to pass through the screen. This type of crusher is usually used for soft and non abrasive materials.

Roll crushers crush the material use two opposite rotation of the rollers. The crushing is made up of electromotor, holder, fixed roller, movable roller and safety spring. The surface of the roller is mostly smooth. According to the number of rolls, there are single-roll, double-roll or multi-roll crushers. The double roll crusher is the most common rock stone crushing machine. Its crushing ratio is usually lower than in other crushers, so its suitable for fine crushing. The roll crusher uses compression to crush materials, and the reduction ratio is 2 to 2.5 so roller crushers are not recommended for abrasive materials.

Hammer crusher consists of a high-speed, usually horizontally shaft rotor turning inside a cylindrical casing. The crusher contains a certain amount of hammers that are pinned to the rotor disk and the hammers are swinging to the edges because of centrifugal force. The feed is dropped to the crusher from the top of the casing and it is crushed between the casing and the hammers. After crushing the material falls through from the opening at the bottom.

when selecting the correct crusher to best suit a particular operation, it is important to understand the requirements for each stage of crushing and how to properly feed each crusher. During the primary crushing stage, the aim is to get the material to a size that conveyors and other aggregate processing machines can handle. Generally, jaw crushers are installed at this crushing stage. Some operations will need further crushing in secondary and tertiary crushing stages. These stages are used to better control and size the output. Impact crushers and cone crushers tend to be used during these stages to better control particle size and shape. Understanding how to best match the type of crusher to the right crushing stage, as well as working with a manufacturer to properly size the crusher, will ensure crushing and feeding efficiency throughout an operation and, ultimately, overall profitability.

Mining Equipment Manufacturers, Our Main Products: Gold Trommel, Gold Wash Plant, Dense Media Separation System, CIP, CIL, Ball Mill, Trommel Scrubber, Shaker Table, Jig Concentrator, Spiral Separator, Slurry Pump, Trommel Screen.