Roof Support Systems Mining

Dowty mining equipment manufactured and supplied thousands of power roof supports and other mining equipment to the longwall mining process worldwide longwall mining is a form of underground coal mining where a long wall of coal is mined in a single slice.

Roof support systems mining.

This is why more. 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. Powered roof support.

Strata worldwide was founded on its line of engineered secondary roof supports for underground coal mining. This gauteng based iso 9001 facility provides patented propriety products with capabilities covering design development machining fabrication assembly. Becker mining systems is a leader in powered roof support manufacturing. Mining products for underground support systems elbroc mining products pty ltd is a recognized leading manufacturer and supplier of in stope roof support products to the mining industry.

Our longwall top coal caving ltcc roof supports allow mining of seams up to 10 m 32 8 ft. The longwall panel is typically 3 4 km long and 250 400 m wide. Our original version mk1 was developed for tabular ore bodies with mining widths of up to 6m in deep level gold mines. Deep level mining roof support system.

Ratings up to 1 750 tonnes. Longwall systems joy powered roof supports. Our powered roof supports are designed and manufactured according to the latest technical and technological solutions. They meet the stringent requirements regarding safety and ergonomics.

As with all cat products top quality and leading innovation result in products that deliver maximum performance and system availability long service life and lowest possible. The structural design of the powered roof supports is respected throughout the mining industry for attention to key fabrication details. Wide mining spans can also increase roof fall rates mark and barczak 2000. Every massive roof fall represents a failure of the installed roof support system at that location.

Extended life testing is a process used to evaluate the life left in powered roof support. A full range of roof supports are available for mining heights from 550 to 7500 mm 1 80 to 24 60 ft with support capacities in excess of 1750 tonnes 1 929 tons. Mine support products flagship product is rocprop an all steel elongated support system designed to maintain load bearing characteristics in both static and dynamic load conditions.