PFW impact crusher is designed with european specifications

The equipment integrates a variety of innovative designs, which is widely used in the fields of ore processing, construction aggregate manufacturing, artificial sand preparation and industrial solid waste resource treatment, etc. It is one of the key equipments in the modern sand and gravel system and mineral crushing engineering.

Features of PFW Impact Crusher:

1. High inertia heavy-duty rotor design: The main rotor is welded and molded with high-strength steel plate, and the overall dynamic balancing precision is high, which can provide a greater kinetic impact force and improve the crushing efficiency and throughput rate.
2. Integral cast steel bearing seat structure: The use of one-time molding of high toughness cast steel bearing seat, impact resistance and bearing capacity is much higher than the splicing structure, smoother operation and longer life.
3. New crescent-shaped plate hammer: The curved impact surface design expands the effective impact area and improves the crushing rate and grain quality. The plate hammer adopts wedge type fixing method, which is easy to replace and fixed firmly.
4. Double safety protection system: Equipped with spring insurance device, when the non-crushing materials enter, the impact frame can automatically move back to release the foreign material, to avoid damage to the machine.
5. Hydraulic cover opening system: Through the hydraulic opening mechanism, the operator can easily open the cover to quickly carry out internal maintenance, replace wearing parts or adjust the discharge gap, significantly reducing downtime and maintenance difficulties.
6. Wear-resistant impact liner and wave structure design: Wave structure makes the material crushing process more uniform force, stronger impact effect, and has higher wear resistance.

The operating principle of PFW Impact Crusher:

The working mechanism is based on the principle of impact crushing. When the raw material enters the crushing chamber from the feed opening, it will first encounter the frontal impact of the high-speed rotor plate hammer. Under the action of strong kinetic energy, the material is quickly crushed and thrown to the impact plate fixed inside the machine shell for secondary impact crushing. Subsequently, the rebounded material will be continuously impacted by the plate hammer again, forming a cycle of crushing process of “multiple strikes – rebound – collision”. Finally, the materials are refined to qualified particle size and discharged from the bottom.

By adjusting the gap between the impact frame and the rotor, the granularity and product shape can be flexibly controlled to meet the needs of different projects.

Application fields of PFW impact crusher:

1. Aggregate processing in highway construction: Crushing natural stone to meet the strict requirements of aggregate particle size and grading for highway base layer and surface layer.
2. Ballast crushing in railroad engineering: Crushing granite, basalt and other high-strength stone materials, the preparation of high-standard railroad ballast.
3. Medium and fine crushing in mining: Suitable for secondary or tertiary crushing of iron ore, copper ore, lead-zinc ore and other metal ores, as well as limestone, quartzite and other non-metallic ores.
4. Machine-made sand preparation for concrete mixing plant: Crushing river pebbles, gravel, construction waste, etc., and processing them into sand and gravel aggregate that meets the requirements of concrete.
5. Construction waste recycling processing: Crushing and recycling of concrete blocks, bricks and tiles produced by demolition and relocation for recycled aggregate production.
6. Limestone sand making for power plant desulfurization: Provide highly active limestone powder with controllable particle size for wet or dry desulfurization system.
7. Fine Aggregate Processing for Dry Mortar System: Provide mechanism sand with reasonable particle size distribution and suitable surface roughness to meet the construction performance requirements of dry mortar.
8. Coal mine auxiliary material crushing: Used for crushing gangue, shale and other by-products, to facilitate comprehensive utilization or harmless treatment.
9. Ceramics and refractory raw materials processing: Fine crushing of kaolin, bauxite, feldspar and other raw minerals to meet the subsequent sintering or molding requirements.
10. Pre-crushing in quartz sand preparation process: As the primary or intermediate crushing equipment for quartz sand wet or dry production line, to improve the grinding efficiency.
11. Standardized production of sand and gravel quarry: Applied to mechanism sand production line, controlling the particle shape of discharged material and improving the grade and quality of finished sand.
12. Industry raw material crushing: Crushing of chemical ores such as barite, dolomite, limestone, etc., to provide basic particle size conditions for batching and reaction.