In a roller mill, the grinding is done with
oppositely rotating steel rollers. High quality roller balls are processed with
grinding and casted with spinning technique. The surface hardness of the roller
balls are 500-550 Brinell, and 20mm hardening depth ensures recurrently
rethreading, and for this reason, a long life span.There are 2 couples, that is
to say, 4 balls in a roller mill. Roller coples can be placed in the machine
body as vertical, horizontal or diagonally in 45 degrees angle.
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