Grinder

Grinder has several meanings:

  • In machining operations grinding refers to an abrasive operation to refine the surface of materials. See grinding machine.
  • In the military, "grinder"all gap between them. Exteme pressure causes the rocks to fracture into finer particles and also causes microfracturing at the grain size level.

It consists of a pair of horizontal cylindrical rollers through which material is passed. The two rollers rotate in opposite directions, "nipping" and crushing material between them. A similar type of intermediate crusher is the edge runner, which consists of a circular pan with two or more heavy wheels known as mullers rotating within it; material to be crushed is shoved underneath the wheels using attached plow blades.

Buhrstone mill

Another type of fine grinder commonly used is the Buhrstone mill, which is similar to old-fashioned flour mills.