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The ore grinding process is to grind large chunks of ores into reasonable particle size, so mineral processing mills are essential.

In the use of disc feeder, it is apt to happen two problems: flake type fragmentation of the transmission gear and spillage in the contact site between the storage bin and the disc.

Sand Maker widely applies to crushing soft or medium-hardness or extreme stiff materials in large scaled smelting, building materials, highway, railway, water conservancy and chemical industry, and many other sectors.

Electromagnetic vibrating feeder operates through electromagnetic vibrations, so its joints are prone to loose and make noise.