new river sand dolomite grinding mill in Kigali Rwanda Africa

The convery belt is mainly composed by the expansion cylinder on both ends and the closed belts tightly knotted on them.

Spiral separators, which are also called spiral concentrators, are gravity devices that separate minerals of different specific gravity according to their relative movement in response to gravity, centrifugal force and other forces in the fluid medium.

Hongxing cone crusher is used for crushing ores and rocks and the advantages are reliable structure, high efficiency, easy adjustment and economy.