PF Impact Crusher

Working Principle:

The motor drives the rotor shaft through the triangular belt. The material is broken due to the high-speed impact of the plate hammer on the rotating rotor, and is thrown to the counterattack liner to break again, and then bounces back from the counterattack surface back to the plate hammer action area to break again. This process is repeated. Until the material is crushed to the required particle size. The material is from the feeding port to the first crushing chamber, and then into the second crushing chamber. When the particle size of the crushed ore is smaller than the gap between the hammer head and the counterpart of the uniform component, it is discharged from the lower part of the machine, that is, the crushed product.

Product Parameters:

Product Instructions for Use:

1. Preparation before starting: check that the bearing and moveable joints are sufficiently lubricated and there is no jamming; confirm that the fastener is fastened and there is no debris in the body; check that the gap between the counterattack liner and the rotor plate hammer meets the standard; rotate the rotor by hand to confirm that the operation is normal and there is no bruise.
2. Start-up operation: start after checking that the whole machine is correct; if there is any abnormality after starting, stop immediately to troubleshoot the fault, eliminate it and restart.
3. Feeding requirements: the feeding device should be used for uniform and continuous feeding, and the materials should be distributed throughout the working length of the rotor to avoid material blockage and stuffing; the feeding device is electrically interlocked with the crusher, and the conveyor belt will automatically stop and break the material when the equipment is overloaded.
4. Discharge gap adjustment: Through the operation of the adjustment device, the side wall door of the frame can be opened to observe the gap; the first counterattack frame is adjusted by screwing the M56 nut, and the second counterattack frame and the equaliser plate are adjusted by screwing the M48 nut (the screw sleeve needs to be loosened before adjustment, and tightened after adjustment); the adjustment must be carried out after shutdown.
5. Shutdown operation: Stop feeding before shutting down, and then cut off the power supply.

Product Maintenance:

1. The machine should run smoothly. When the vibration of the machine suddenly increases, it should be stopped immediately to find out the cause and eliminate it.
2. Under normal circumstances, the temperature rise of the bearing should not exceed 35℃, and the maximum temperature should not exceed 70℃. If it exceeds 70℃, it should be stopped immediately to find out the cause and eliminate it.
3. When the wear of the plate hammer reaches the limit mark, it should be used or replaced in time.After assembling or replacing the plate hammer, the rotor balance must be maintained, and the static balance should not exceed 0.25kgm.
4. When the rack liner is worn out, it should be replaced in time to avoid wearing the shell.
5. Check the tightness status of all bolts before each power-on.

Application scenarios:

PF series counter-impact crusher is a secondary fine crushing and shaping equipment in the core of the middle section of the sand and stone production line. It is mainly arranged after the jaw-type coarse crushing equipment and before the screening/sand-making equipment. The core role is to finely crush coarse crushed materials, optimise aggregate granules, regulate particle grading, eliminate needle-shaped waste, and improve the finished product quality and discharge qualification rate of the whole production line.

1. Finishing of sand and stone aggregates

It is suitable for the fine crushing and shaping operation of limestone, bluestone, weathered rock and other medium soft stone materials. The finished product particles are regular and graded with excellent, which can meet the production needs of high-standard engineering aggregates such as high-speed, water conservancy and commercial mixing.

2. Resource regeneration of construction waste

It can efficiently crush concrete, red brick, asphalt and other construction waste. After processing, the particle size of the recycled aggregate is uniform. It can be used for roadbed backfilling, sand and stone reuse, and adapts to urban solid waste resource regeneration projects.

3. Mine secondary fine crushing operation

It can be combined with a jaw crusher to form a full set of crushing production lines to complete the secondary fine crushing operation of materials, effectively optimise the appearance of finished products, and improve the overall production capacity of the production line and the qualification rate of finished products.

4. Processing of building materials and industrial raw materials

It is suitable for the crushing of coal, gypsum, slag, cement clinker and other materials. It widely serves the pretreatment of raw materials in the building materials, chemical industry, metallurgy and refractory industries. It has low input cost and convenient operation and maintenance.

5. Small and medium-sized construction sites and civil sand and stone projects

Material production, the output aggregate is of high quality, and the market sales are better. The equipment is lightweight, the threshold for commissioning is low, and the moulding effect is good. It is suitable for the sand and stone production operations of small and medium-sized material farms, township sand and stone factories, and temporary infrastructure projects.

FAQ：

Q：Why choose the PF series counter impact crusher?

A：PF series counter impact crusher is suitable for medium-hardness materials, such as limestone, sandstone, coal gangue, etc. This equipment has good finished product particle type and high crushing efficiency, and is often used in the secondary crushing link of sand and stone aggregate production line.

Q：How to choose the PF impact crusher?

A：The selection mainly depends on the hardness, feed particle size and yield requirements of the material. Small and medium-sized production lines choose medium-sized models, and large-scale projects choose high-capacity models, and combine jaw-breaking and sand-making machines to form a complete production line.

Q：Do you support agency and long-term supply?

A：Support global agency, distribution and long-term supply cooperation, and can provide factory prices and technical support to help customers expand local markets.

Q：How to transport and deliver the PF counter-attack crusher?

A：The equipment will be standardised for protective packaging before leaving the factory, and container or bulk transportation will be used according to the size of the model. During transportation, anti-rust, anti-collision and structural reinforcement will be carried out to ensure the safety of the equipment in long-distance sea or land transportation.

Q：What are the technical characteristics of PF counter impact crusher?

A：The PF series impact crusher adopts an optimised crushing cavity structure design, so that the material can be crushed efficiently under high-speed impact, while improving the quality of the finished grain type. The equipment has a compact structure and stable operation, which is suitable for the continuous production conditions of medium-hardness materials.

Q：Do you provide long-term supply of consumable parts?

A：Long-term supply of wearable parts such as plate hammers, counterattack plates, lining plates, etc., made of high-chromium alloy materials, with strong wear resistance, supporting bulk procurement and long-term spare parts supply.