What is an impact crusher?

Impact crusher is a mechanical equipment that uses impact energy to crush materials. It mainly uses the hammer on the high-speed rotating rotor to impact the materials, so that they are broken and then thrown to the impact plate for secondary crushing, and finally reach the required particle size. Impact crushing equipment can handle various materials with a particle size not greater than 200 mm and a compressive strength not exceeding 320 MPA.

Impact crusher machine has the characteristics of large crushing ratio, Elevata efficienza di schiacciamento, e facile manutenzione. It is a promising ore crushing equipment.

Structure Of Impact Crusher:

7 parts of impact crusher

Frame of impact crusher

Frame is the main structure of the crusher, which supports and fixes other parts and bears the crushing force. Frame is generally welded with high-strength steel and has sufficient strength and stability. A transmission device is installed inside the frame to drive the rotor to rotate. Anti-plate and lining are also installed on the frame to control the size and shape of the crushed material.

Impact crusher rotor

The rotor is the main working part of the crusher, which consists of a main shaft and a hammer mounted on the main shaft. The hammer is made of high-strength wear-resistant material, which can effectively improve the crushing efficiency and service life. The rotor rotates at high speed under the drive of the motor to impact and crush the material. The speed of the rotor and the number and weight of the hammers can be adjusted according to different materials.

Impact crusher anti-plate

The anti-plate is one of the important parts of the crusher. It is used in conjunction with the rotor to control the crushing effect of the material. The shape and angle of the anti-plate can be adjusted according to different materials to obtain the ideal crushing effect. The impact plate is welded with high-strength steel and covered with wear-resistant materials to enhance its service life. The size of the gap between the impact plate and the rotor has a great influence on the crushing effect and needs to be adjusted according to the actual situation.

Impact crusher feeding device

The structure of the impact crusher feeding device includes a feed port, an adjustment plate and a feeding device. The feed port is usually trumpet-shaped to facilitate the uniform entry of materials. Adjustment plate: can control the feeding speed and particle size to prevent overload. Alimentatore: often equipped with a vibrating feeder or a belt conveyor to ensure continuous and uniform feeding. Funzione: Feed the material evenly into the crushing chamber to avoid uneven impact force causing equipment damage.

Impact crusher lining

The lining is mainly installed between the frame and the impact plate to protect the frame and the impact plate from direct impact and wear of the material. The lining is generally made of high-strength wear-resistant materials, such as high manganese steel or hard alloy. The installation position and angle of the lining can be adjusted according to the actual situation to optimize the crushing effect and increase the service life of the lining.

Impact crusher transmission

The transmission is the power system of the crusher, which consists of a motor, a coupling, a pulley and a V-belt (or a reducer). It transmits the high-speed rotation of the motor to the rotor to rotate the rotor. The transmission is generally composed of components such as a reducer and a coupling to achieve power transmission from the motor to the rotor. The stability and reliability of the transmission have a great impact on the performance and service life of the crusher, so regular maintenance and servicing are required.

Impact crusher lubrication system

The crusher lubrication system includes a bearing seat, an oil pump, a pipeline and a filter. Some models use centralized lubrication or splash lubrication. Bearing lubrication: Use high-temperature resistant lithium-based grease or forced circulating oil lubrication to reduce friction and wear. Gear lubrication: splash lubrication (low speed) or forced oil injection lubrication (high speed). The impact crusher lubrication system can reduce component friction, extend service life and prevent overheating.

Smat impact crusher specification

Conventional impact crusher

C1 Series Impact Crusher

German version impact crusher

Come funziona un impatto frantoio?

Working principle of impact crusher: An impact crusher is a crushing machine that uses impact energy to crush materials. When the machine is working, driven by the motor, the rotor rotates at high speed. Quando il materiale entra nell'area di azione del martello della piastra, it collides with the plate hammer on the rotor and is crushed. Then it is thrown onto the impact device and crushed again. Then it rebounds from the impact lining plate back to the plate hammer action area and is crushed again. This process is repeated. The material enters the first, secondo, and third impact chambers from large to small and is repeatedly crushed until the material is crushed to the required particle size and discharged from the discharge port.

In order to meet different crushing needs, the impact crusher is equipped with a variety of adjustment mechanisms. The first is the adjustment of the discharge gap, which is usually achieved by hanging bolts or spring adjustment mechanisms to ensure flexible adjustment when wear or particle size changes. Inoltre, the adjustment of product particle size is also key, which involves the detailed adjustment of the gap between the split chamber impact plate, the second impact plate, and the leveling screen plate and the plate hammer end point.

What can impact crushers be used for?

Impact crushers are widely used and can be used for a wide range of materials with a wide hardness range. With its high efficiency, energy saving, and strong adaptability, we can see impact crushers working in many occasions.

Impact crushers are used in mines

Impact crushers can handle high-hardness materials such as iron ore, minerale di manganese, calcare, and quartz. They are used for coarse or medium crushing in the ore dressing process to improve the efficiency of subsequent grinding. Wear-resistant plate hammers and high-chromium materials can cope with high-intensity impacts and reduce equipment wear.

Impact crushers are used in construction

Compact impact crusher can be used in aggregate production, producing concrete aggregates (such as crushed stone, ciottoli) and sand for mortar. It crushes construction waste such as waste concrete, bricks and tiles to achieve resource recycling, and can adjust the output particle size to meet the needs of concrete of different grades.

Impact crushers are used in the metallurgical industry

Impact crushers can crush metal ores: primary crushing of metal ores such as copper, gold, piombo e zinco. It has strong impact resistance to metal impurities (such as steel bars) in metal ores.

Learn more about: IL application of crushers in gold mines

Impact crusher for cement and building materials

Impact concrete crusher can process cement production raw materials such as limestone, argilla, minerale di ferro, ecc., replace natural sand, and produce high-grade machine-made sand (such as 10-20mm, 5-10mm particle size). It can form a closed-loop cycle with CONE CREBER and sand making machine to optimize the grading of sand and gravel aggregates.

Performance characteristics of impact crusher

Grande rapporto di frantumazione: The crushing ratio can generally reach 30-40, and the maximum can reach 150.

Elevata efficienza di schiacciamento: Since the impact strength of the material is usually lower than the compressive strength, the impact crusher has higher crushing efficiency and lower energy consumption.

Dimensione delle particelle del prodotto uniforme: During the crushing process, large pieces of material are crushed to a greater extent, while small particles are not crushed, so the product particle size is uniform and there is less over-crushing.

Schiacciamento selettivo: The material is crushed along the cleavage plane, which is conducive to monomer separation.

Forte adattabilità: Suitable for brittle, fibrous and medium-hard materials.

Small equipment size, peso leggero, Struttura semplice: easy to manufacture and convenient maintenance.

The impact crusher can be combined with other crushing equipment and mineral processing equipment to form a complete crushing production line, which is used for ore and rock crushing solutions and is widely used in construction, mining, costruzione di strade e altri campi.

Impact crusher production line

Impact crusher can be combined with other crushing equipment and mineral processing equipment to form a complete crushing production line for ore and rock crushing solutions, and is widely used in construction, mining, costruzione di strade e altri campi.

Impact crusher production line

Materiale: calcare
Configuration: alimentatore vibrante, mascella mascella, Impatto Crusher, schermo vibrante, trasportatore a cintura, centralized electronic control and other equipment

Primo, large pieces of stone are evenly fed into the jaw crusher through the silo by the vibrating feeder for coarse crushing. The crushed stone after coarse crushing is sent to the impact crusher by the belt conveyor for further crushing; the finely crushed stone is sent to the vibrating screen by the belt conveyor for screening, and several different specifications of stone are screened out. The stone that meets the particle size requirements is sent to the finished product pile by the finished product belt conveyor; the stone that does not meet the particle size requirements is returned by the belt conveyor to the impact crusher for re-crushing, forming a closed-loop multiple cycle. The finished product particle size can be combined and graded according to the needs of the user, and auxiliary dust removal equipment can be equipped to protect the environment.

Crushed stone production line

Materiale: Calcite
It consists of vibrating feeder, mascella mascella, Impatto Crusher, schermo vibrante, trasportatore a cintura, centralized electronic control and other equipment

Primo, the stone is initially crushed by the coarse crusher, and then the coarse material is conveyed to the fine crusher by the belt conveyor for further crushing. The finely crushed stone is screened out by the vibrating screen to separate stones of different specifications. The stones that do not meet the feed particle size of the sand making machine are crushed again by the impact crusher.
The stone production line has a high degree of automation. Except for the startup and shutdown of the equipment and daily maintenance, the entire production line requires almost no manual operation. It has high production efficiency, low operating cost, large output, high profit, and the finished stone has uniform particle size and good particle shape, which meets the national high-speed material requirements.

Stone production line

Materiale: granito
Alimentatore vibrante, mascella mascella, alimentatore vibrante, high-efficiency hydraulic cone crusher, schermo vibrante circolare, shaping machine, schermo vibrante circolare

Stones are blasted down from the mountain. Stones smaller than 1020mm are fed into the vibrating feeder by dump trucks. The vibrating feeder feeds the stones evenly into the jaw crusher. The jaw crusher crushes the stones in sections. The stones crushed by the jaw crusher are about 150mm–300mm. The vibrating feeder feeds the materials into the high-efficiency hydraulic cone crusher for the second stage of crushing. The crushed materials are graded and screened by the circular vibrating screen. Materials larger than 40mm are returned to the cone crusher for crushing. Materials below 40mm are sent to the shaping machine by the belt conveyor for shaping. The finished products after shaping are graded and screened by the circular vibrating screen and transported to the finished product area by the belt conveyor.