[Introduction to ring hammer crusher] Ring hammer crusher (ring hammer crusher, ring hammer coal crusher) is suitable for crushing medium or fine crushing of various medium hardness materials with compressive strength not exceeding 150Mpa and moisture not greater than 8-12%. Such as: coal, coal gangue, coke, slag, red sandstone, shale, loose limestone, etc. [Features] It has the characteristics of simple structure, large crushing ratio, low noise, and little dust. [Application field] It can be widely used in thermal power, cement, coal, metallurgy, building materials, highways, combustion and other industries. [Working principle] The main working part of the ring hammer crusher is a rotor with a hammer head. The rotor is composed of a spindle, a turntable, a pin shaft and a hammer head. The motor drives the rotor to rotate at high speed in the crushing cavity. The material enters the crushing cavity from the feeding port, and the material is crushed by the impact, impact, shear and grinding of the high-speed moving hammer head. A coarse-grained grade larger than the size of the screen hole is blocked on the sieve plate and continues to be hit and ground by a hammer head. After reaching the particle size, the castor gap can be customized according to user requirements, and the discharge particle size can be changed to meet the needs of different users.