Sandvik Intellectual Property Ab

Sandvik Mining and Construction Oy

Martin Gimpel

Guenther Staber

Hubert Kargl

Bernhard Ebner

Reinhold Pogatschnigg

Gerald Kribitz

Wolfgang Richter

Thomas Bumberger

Michael Offenbacher

A cutter head for excavating hard rock materials in rock face includes a carrier attachable to a cutter arm of a cutter machine and a drive shaft rotatably supported by the carrier. The drive shaft is rotatable about a drive axis and has at one end a support portion for mounting disc cutters. A plurality of disc cutters are mounted on the support portion and configured to perform undercutting against the rock face. Each disc cutter is rotatable about a respective support axis, the respective rotational axis of each disc cutter being configured to be substantially transverse to the rotational axis of the cutter head. A mining machine including the cutter head is also disclosed.

Cutting apparatus

A roller cutter unit is mountable at a cutting head of undercutting mining machines. The cutter unit includes an elongate mount shaft to position and support a cutter ring. The cutter ring is secured to the mount shaft via a bracket having a wedge segment configured to be wedged axially and radially between the cutter ring and the shaft. Accordingly, a mounting mechanism is provided to achieve a desired force transmission pathway from the cutter ring into the shaft so as to maximize the locking action of the cutter ring at the cutter unit.

Roller cutter unit for undercutting machine

Growing community of inventors

Leoben, Austria

Martin Gimpel