Metso Minerals (matamata) Limited

Yuichi Nagahara

Shuichi Aihara

The invention provides a crusher which can produce uniform finely pulverised material without having to increase the speed of the rotor, and which has a good rate of productivity. The crusher comprises crushing vanes having extensions formed protruding radially from the outer surface of the rotor and extending below a raw material drop point A of a dead-bed , and an annular wall similarly positioned below the raw material drop point A of the dead-bed , on an inner rim of a lower plate of the crushing chamber , and pulverizing is effected by the material which rebounds and falls from the dead-bed , striking the extensions of the crushing vanes

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Tokyo, Japan

Yuichi Nagahara