Metso Minerals, Inc.

Rauma Repola Oy

Nordberg-lokomo Oy

Kari Rikkonen

Risto Sutti

Jari Jonkka

Kari Kuvaja

Juhamatti Heikkilä

Marko Salonen

Markku Makela

Petri Kujansuu

Olli Aho

Matti Kaarnametsa

Ilkka Somero

Mika Yli-Marttila

Jarmo Eloranta

Timo Hartman

Jouko Hyytianien

Jukko Moisander

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

A frame of a jaw crusher comprises a front wall for receiving crushing force and side walls connected to the front wall. The frame of the jaw crusher comprises a front part and a rear part joinable to the front part, and the front part comprises the front wall, and a major part of the front wall and the front part of both side walls form a unitary piece. A jaw crusher and a crushing plant.

Frame of jaw crusher, jaw crusher and crushing plant

Hydraulic control system for gyratory crusher provided with safety

Tree harvester

Growing community of inventors

Tampere, Finland

Kari Rikkonen