Gripper Shoe

Part

A large curved steel pad on each side of the machine, pressed against the tunnel wall with a force many times the thrust, so the machine can push and turn the cutterhead without slipping. It is sized to keep the pressure on the rock low, around 3 MPa on some designs, and slotted so it can pass over installed rock bolts.

Class	Part

A large curved steel pad on each side of the machine, pressed against the tunnel wall with a force many times the thrust, so the machine can push and turn the cutterhead without slipping. It is sized to keep the pressure on the rock low, around 3 MPa on some designs, and slotted so it can pass over installed rock bolts. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.