Hammer crusher is one of the primary or secondary rock crushers. It is used for crushing raw material whose compression strength is less than 150 MPa such as limestone, sandstone, gypsum, coal, etc. The single stage hammer crusher can crush the ore block at the stope into the required  granularity at a time. It can replace the traditional two-stage crusher, help simplify process flow, save infrastructure investment and production costs.

The main working part of hammer crusher is the rotor with hammer. The rotors consist of main shaft, disk, pin shaft and hammers. The motor drives the rotors to rotate quickly in the crushing cavity. Raw materials enter the crusher through the feeding opening and then they are stricken, impacted, cut and ground  to small size by the high-speed hammer. 

There is a screening plate under the rotor. The materials with smaller size than the screen mesh will be screened out and others are left to be further crushed and ground until they reach the standard size. The size of the final product can be adjusted by changing the screening plate. The gap between the rotors and the screening plate can also be adjusted.

Advantages of Single-stage Hammer Crusher

1. Big reduction ratio: maximum feeding size is 1.3-1.5m; 3-150mm of discharging size.

2. High fineness of discharged particles: favorable shape with aggregate, the powdery material is no more than 20%.

3. Simple production process: the two or three stage crushing is reduced into single stage.

4. Economical: small capacity of matched motor, which greatly reduces the production cost.

Technical Parameters of Hammer Crusher