Roof Supports Mining

Roof supports for special applications.

Roof supports mining.

Intrinsic roof support an empirically based software package analysis of roof bolt systems arbs has been developed to assist in design of roof bolt systems in coal mines. Strata worldwide was founded on its line of engineered secondary roof supports for underground coal mining. Including timber steel and concrete options. The can handles mine floor heaving and roof sag better than any other type of support available today.

Our longwall top coal caving ltcc roof supports allow mining of seams up to 10 m 32 8 ft. The structural design of the powered roof supports is respected throughout the mining industry for attention to key fabrication details. 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. Originally introduced in 1993 the strata propsetter support system remains one of strata s top selling support props through out the world.

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. Today this prop is one of eleven different standing support systems strata offers.