33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
Thailand's potash mining in the Udon Thani basin and the fluorite operations in Chiang Mai Province operate RD22U drifters on excavator-mounted and crawler drill platforms in a monsoon climate where the six-month wet season brings near-daily precipit...
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Vale's Sossego and Salobo copper operations in Pará state sit on the Carajás mineral province's southern flank, drilling through banded iron formation (BIF) host rock that grades between soft weathered laterite near surface and hard sil...
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Chile's porphyry copper mines—Codelco's El Teniente underground mine, the world's largest underground copper mine, and Antofagasta's Los Pelambres—operate RD22U drifters in granodiorite and diorite host rock at 140–180 MPa UCS. El T...
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Norway's underground hydropower construction—the ongoing expansion of pumped-storage projects in Hardanger and Vestland, plus the deep road tunnels through the Scandinavian mountain range—operates RD22U drifters in a specific cold-water c...
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Ma'aden's phosphate processing complex at Wa'ad Al Shamal in northern Saudi Arabia and the gold mining operations in the Mahd Ad Dahab region operate drill equipment in an environment where ambient air temperature at 10:00 AM in July already exceeds ...
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The RD22U's higher percussion energy class means its accumulator stores and releases more energy per cycle than lighter drifter accumulators—the pre-charge specification is higher, the diaphragm flexes through a larger pressure amplitude range,...
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Italy's infrastructure tunneling—the Brenner Base Tunnel from the Austrian border through the Dolomites, the Genoa third harbor access tunnel through Ligurian flysch, and hard-rock quarrying in Carrara and Sardinia—puts the RD22U's hydrau...
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Indonesia's nickel and gold operations—Amman Mineral's Batu Hijau copper-gold mine in Sumbawa and Vale's Sorowako nickel operations in Sulawesi—run RD22U drifters in tropical conditions where the seal house sits at the most vulnerable con...
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KGHM's copper operations in Lubin and Sieroszowice run some of Europe's highest-utilization underground drill fleets. The RD22U drifters on their development headings accumulate percussion hours at a rate that makes the piston guide's clearance maint...
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Norilsk Nickel's sulfide ore operations in Siberia and the Polyus gold operations at Natalka in Magadan Oblast are among the world's most logistically isolated mine sites. The RD22U percussion cylinder at these locations isn't replaced on a preventiv...
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The RD22U's heavier piston—more mass, longer stroke, higher impact energy than the RD18U class—changes the fatigue arithmetic in Finnish hard-rock operations. At Agnico Eagle's Kittilä gold mine in Lapland, the gold-bearing schist tr...
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German tunnel engineers building the Brenner Base Tunnel through the Alps and the Stuttgart 21 rail project underground have a phrase for what happens when overhaul kit components from different suppliers get mixed at service: 'Dimensionsroulette'&md...
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Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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