Roof Supports Mining

Roof supports for special applications.

Roof supports mining.

The structural design of the powered roof supports is respected throughout the mining industry for attention to key fabrication details. The can handles mine floor heaving and roof sag better than any other type of support available today. Strata worldwide was founded on its line of engineered secondary roof supports for underground coal mining. Including timber steel and concrete options.

Following a conventional cut with a shearer to about 3 m 9 8 ft the roof supports move forward and allow the caving coal to fall via controllable caving shields onto a second conveyor mounted gob side. The can is a yieldable secondary roof support made from a confined core of cementitious composite encased in a cylindrical steel canister which resembles a can. Surface control niosh mining publications have documented the advantages of using roof screen or mesh to prevent ground fall injuries. Today this prop is one of eleven different standing support systems strata offers.

The order from the roof support manufacturer zmj zhengzhou coal mining machinery group co ltd has a value of approximately 2 7 million and in addition to the main hydraulic control system once again includes all safety relevant auxiliary valves. High strength steels automated welding for increased weld integrity elimination of stress prone transverse welds.