Metso Minerals, Inc.

Metso Outotec Finland Oy

Petri Kujansuu

Kari Kuvaja

Mika Peltonen

Risto Sutti

Jari Jonkka

Marko Salonen

Kari Rikkonen

A mineral material processing plant, a crusher and an upper frame for a crusher. The upper frame includes a central hub for receiving a main shaft of the crusher, an upper rim, and a spider arm. A u-shaped cavity extends towards a lower flange from the upper rim.

Crusher frame

A mineral material crusher and method of operating a mineral material crusher that includes: a body, a rotating crusher element, a drive shaft arrangement that supports the rotating crusher element to the body and to rotate the rotating crusher element, and a motor including a rotor for driving the drive shaft arrangement. The motor is formed inside the rotating crusher element and the drive shaft arrangement is configured to form of the rotor a rotating axle that is rigidly coupled with the rotating crusher element and capable of leading torque from the rotor to the rotating crusher element for rotating the crusher element around the drive shaft.

Driving of rotating crusher elements

Growing community of inventors

Tampere, Finland

Petri Kujansuu