KGHM's underground copper operations in Poland use HLX5T longhole rigs for sublevel stoping production in the Legnica-Głogów copper belt's Kupferschiefer ore zone. Unlike the hard crystalline formations where many HLX5T fleets operate, KGHM's ...
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The hydraulic hoses connecting the HLX5T drifter to the rig's hydraulic circuits carry 200–230 bar percussion oil at a sustained flow rate of 130–160 L/min per circuit—significantly more thermal energy than development drifter hoses...
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The HLX5T is a louder drill than development drifters by design—its heavier percussion energy class and higher pressure operation produce a higher sound power level at the piston strike event. In sublevel caving production at Polyus Gold's Blag...
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The HLX5T's hydraulic connection parts—hose end fittings, manifold adapters, and high-pressure port connectors—operate at 200–230 bar percussion circuit pressure and must accommodate the rig's positional flexibility across the full ...
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Norwegian underground zinc-lead production at Boliden's Odda smelter supply chain and the Nyrstar Talvivaara material flows notwithstanding, the most demanding HLX5T longhole production environment in Norway is the Nussir copper deposit in Finnmark&m...
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The body cylinder—the percussion cylinder housing—on the HLX5T operates at higher sustained pressure and through more percussion cycles per service interval than any development drifter equivalent. At Agnico Eagle's Kittilä gold mine...
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The HLX5T seal kit operates at percussion pressures 20–30 bar higher than most development drifters—200–230 bar at the percussion bore versus 160–180 bar for medium-class development drills. That pressure differential changes ...
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The feed cylinder on the HLX5T production drill rig advances the drifter along the feed beam during drilling and must maintain precise feed force control across the full range from 0 meters (collar setup) to 54 meters (maximum hole depth). Feed force...
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The HLX5T operates at higher percussion pressure than most development drifters—its heavy-duty classification requires hydraulic circuit pressures of 200–230 bar to deliver the 300+ J impact energy its production drilling role demands. Th...
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The HLX5T is mounted on a production drill rig boom that must position the drill at the exact collar positions defined by the longhole ring design—and hold that position within ±50 mm over the 25–45 minute drilling cycle for each h...
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The HLX5T gearbox connects the rotation motor to the drill string through a gear reduction that delivers high torque at the shank adapter to turn the heavy T51/GT60 rod string against the hard formation contact resistance. In sublevel stoping product...
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Flushing a longhole production hole with the HLX5T presents fundamentally different challenges from development drilling. In a 4-meter development hole, the flushing water travels 4 meters from the bit to the collar and returns in less than 3 seconds...
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