A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.
Cogar Manufacturing has taken technology from our underground feeder breakers and developed a new standard for crushing excellence. Combining easy mounting, easy access to bearings, and easy access to crusher assemblies Cogar units are designed to be very "user-friendly".
We are the Caterpillar Heavy Equipment Dealer in Miami, Kelly Tractor and Southern Florida, we supply Cat parts, used Cat equipment, Link-Belt cranes, Cat forklifts, Massey Ferguson and Challenger farm tractors, and IMT foundation drilling equipment, as well as all types of construction equipment.
Relevant Data. Real-Time Transmission. The DISPATCH ® Underground Fleet Management System actively delivers relevant information to each mobile equipment unit, assisting operators in making informed decisions based on current conditions.
Screenmasters Australia Pty Ltd was established in 1995, and are dealers for the worlds largest manufacturers of track mounted crushing equipment and screening equipment. . As distributors for leading manufacturers such as GIPO machinery, Doppstadt, Keestrack and Samson, Screenmasters can meet all needs related to crushing, screening and recycling for industries ranging from mining and ...
Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies.
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coal in seams too thin to be workable.