DBT

Building and mining machines and their components, particularly mining/winning machines, namely, coal ploughs, coal augers, cutter loaders; earth moving machines, namely, backhoes, graders, loaders, scarifier and scrapers; roadheading machines for driving tunnels, galleries and headings, boring machines for sinking and enlarging shafts, machines for mechanized lining of headways and tunnels, namely, tubbing erectors, pile-driving machines; drive mechanisms for mining/winning machines including toothed racks and pinion racks; pipe jacking systems composed of hydraulic jacking cylinders, support frames as main and intermediary stations, pipe joints and cutter heads with and without hydraulic steering equipment, parts of pipe jacking systems; shields for roadheading machines and blades of mining machines and parts thereof; hydraulic support systems comprised of frames, support chocks and shield supports for underground mining works and parts thereof, mechanical or hydraulic support frames for mine roads, mechanical tubbing lining in the form of tubbing rings, hydraulic shifting devices for supports; conveyors, namely, continuous conveyors for bulk material, particularly scraper chain conveyors, namely, curve conveyors and roller curves, belt conveyors, platform conveyors, link conveyors; perpendicular conveyors, disc retarding conveyors, worm conveyors, vibrating conveyors, bunker discharge conveyors, pneumatic conveyors, parts of the said conveyors, namely, conveyor pans, pan conveyor connections, driving stations and scrapers; suspended conveyors, single-rail trolley conveyors; powered anchorage or shifting devices for anchoring resp; shifting conveyor means and their drive means, parts of the anchorage and shifting devices, namely, guide rods and walking troughs; electro-hydraulic support control systems for tunnels and shafts, comprised of hydraulic cylinders, support control instruments, control devices for conveyors, for mining machines, as described above for blade shields, parts for the aforementioned support control system and control instruments, powered devices for directing and positioning of underground mining machines and parts thereof, guide means as a part of mining machines, plough guidances, chain guidances, plough chains and chain guidances for coal augers, sideplates for conveyors, cable ducts, bits and bit holders and drilling tools; crushers for the mining industry, for the stone and ground industry and for recycling purposes; jaw crushers; rolling crushers, continuous passage crushers; mining/winning machine parts, namely, electrical hydraulic and pneumatic drive means as well as gears, clutches, chains, chain wheels and chain drums, power-driven chain tension devices, tension frames, pumps, valves, electro-hydraulic control devices, hydraulic working cylinders and high-pressure hoses; hydraulic and pneumatic cylinder-piston machine parts, namely, hydraulic props, shifting cylinders, adjusting cylinders, anchoring cylinders, control- and metering cylinders, hydraulic rams for drivage shields and blade shields; machine parts, namely, filters for filtering hydraulic fluids; powered devices with spray nozzles for dust control by means of water including parts thereof; power-driven winches, reels, hoists, including the gears thereof

REPAIR AND MAINTENANCE OF MINING MACHINES AND PARTS THEREOF

Training in the use of mining machines and the parts thereof

Inspection of mining machines and parts thereof