drill pressure and rotation speed. The drilled holes were loaded with a special machine called a hole tamper. Designed by Robbins, the machine was mounted on a crawler tractor such as a Caterpillar D6 ...

Surface stripping is primarily done with crawler tractors, which are large-scale bulldozers. These massive machines are able ... Blasting is first initiated by drilling holes into the earth ...

The crawler-mounted ... The DM 30 II SP is a simple machine scalable to automated features. The DM Series drill rig can be equipped with on-board technology capabilities with the optional Epiroc ...

Atlas Copco is launching a new surface crawler simulator for operator training ... the original controls identical to those on the drilling equipment. This provides students with a realistic ...