what types of crushers are available in china ？

1. Jaw Crusher

Working Principle: Material is crushed through periodic reciprocating motion between the movable and fixed jaw plates via extrusion and splitting.

Features: Simple structure, reliable operation, easy maintenance. The preferred equipment for primary crushing.

Main Models: PE (primary crushing), PEX (fine crushing) series.

Application: Primary crushing (first crushing stage), suitable for various ores and rocks with compressive strength not exceeding 320MPa.

2. Cone Crusher

Working Principle: The moving cone performs eccentric swinging motion within the fixed cone, continuously squeezing and impacting material in the crushing chamber.

Features: High crushing efficiency, low energy consumption, uniform product size, long wear parts life. Relatively complex structure and higher price.

Main Types:

• Spring Cone Crusher: Traditional type, tramp iron protection relies on springs.
• Hydraulic Cone Crusher: Modern mainstream, integrates mechanical, hydraulic, electrical, and intelligent control. Divided into:
  • Single-cylinder Hydraulic Cone Crusher: Suitable for medium and fine crushing, compact structure.
  • Multi-cylinder Hydraulic Cone Crusher: Suitable for medium and fine crushing, better product shape.
  • Full Hydraulic Cone Crusher: Advanced performance, wide adjustment range.

Application: Medium and fine crushing, suitable for medium-hard and above hardness ores.

3. Impact Crusher

Working Principle: Uses impact force from hammers on a high-speed rotating rotor to throw material against impact plates or other material for crushing.

Main Types:

• Impact Crusher: Equipped with impact plates and hammers, commonly used for medium and fine crushing.
• Vertical Shaft Impact Crusher (Sand Maker): Material is crushed either "rock-on-rock" or "rock-on-iron" inside the rotor or against the surrounding guard plates. Core equipment for manufactured sand and aggregate shaping.

Application: Medium and fine crushing and sand making for materials of medium hardness and below.

4. Hammer Crusher

Working Principle: High-speed rotation of hammers hinged on the rotor impacts the material; qualified material discharges through grate bar gaps.

Features: Large reduction ratio, high output, uniform product size. However, hammers and grate bars wear quickly, and energy consumption is relatively high.

Main Types:

• PC Series Hammer Crusher: Equipped with grate bars.
• Heavy-duty Hammer Crusher: Capable of primary crushing in one stage, simplifying the process flow.
• Reversible Hammer Crusher: Rotor can rotate in both directions, extending hammer life.

Application: Materials of medium hardness and below with low abrasiveness, such as limestone, coal, etc.

5. Roll Crusher

Working Principle: Material is crushed by compression and grinding between two counter-rotating rollers.

Features: Simple structure, less over-grinding, easy control of product size. However, processing capacity is low, and roller surfaces are prone to wear.

Main Types:

• Double Roll Crusher.
• Four Roll Crusher.

Application: Medium and fine crushing, suitable for brittle, sticky, or moist materials in coal, chemical, building materials industries, etc.

6. Mobile Crushing Station

Working Principle: Integrates one or multiple of the above crushers (e.g., jaw crusher, cone crusher, impact crusher) onto a crawler or wheeled chassis.

Features: High mobility and flexibility, no need for foundation construction, on-site operation, quick relocation, significantly reducing material transportation costs.

Application: Construction waste processing, mining, quarries, urban infrastructure projects requiring frequent relocation.