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]
Longhole production drilling with the HLX5T places the rotation bushing in a loading condition that development drilling doesn't replicate: the drill string hangs 30–54 meters into the hole, and the combined weight of T51 rods in a 54-meter str...
VIEW MORE
The Sandvik HLX5T is not a development drifter—it's a heavy-duty longhole rock drill mounted on production drill rigs for sublevel stoping, sublevel caving, and large-diameter ring drilling programs. At LKAB's Kiruna iron ore mine, where the HL...
VIEW MORE
The DD2710 operates on pneumatic rubber tyres—a design choice that enables faster tramming speeds than crawler tracks and the compact turning radius needed in KGHM's 5×4 meter copper mine headings. But pneumatic tyres in Polish undergroun...
VIEW MORE
The DD2710 is a wheeled jumbo—it trams on rubber tires rather than crawling on tracks—and in Polish underground copper mining at KGHM's Lubin and Sieroszowice operations, tramming performance is a critical operational metric. KGHM's flat-...
VIEW MORE
The DD2710 is an electric-hydraulic jumbo powered by 380V/50Hz three-phase supply through an onboard cable reel. The water pump motor is one of the 380V electric drive components—it runs continuously during drilling to maintain constant flushin...
VIEW MORE
The DD2710's water pump delivers flushing water to the drifter at the 15–20 bar required for effective cuttings removal from Ø45–76 mm development holes. In Siberian underground operations at Polyus Natalka—where the mine wat...
VIEW MORE
Russian underground gold and nickel operations—Polyus Natalka in Magadan Oblast and Nornickel's Taimyr Peninsula mines—operate Sandvik DD2710 development jumbos in headings where the operator spends 6–8 hours per shift in the cab du...
VIEW MORE
The shank lubrication system on the DD2710 delivers oil to the RDX5 drifter's shank adapter interface—the most mechanically stressed lubrication point on the jumbo. Norwegian underground operations add a specific challenge to this system that d...
VIEW MORE
Norwegian underground safety regulations under the Mines Safety Regulation (Bergforskriften) and the Working Environment Act require fixed fire suppression systems on all underground drilling equipment operating in tunnels and mines. The DD2710 as a ...
VIEW MORE
Norwegian underground construction—the ongoing Follo Line railway tunnel under the Oslo fjord area, the Ryfylke subsea road tunnel in Rogaland, and hydropower adit drilling throughout the fjord country—operates Sandvik DD2710 jumbos in gr...
VIEW MORE
A DD2710 development jumbo has more than a dozen hydraulic cylinders across the boom, feed, carrier, and canopy systems—each with its own seal kit containing the specific piston seal, rod seal, wiper, and O-ring profile for that cylinder's bore...
VIEW MORE
The DD2710 carries multiple hydraulic accumulators that serve different functions across the machine. The percussion circuit accumulators buffer the percussion pump's flow demand peaks. The boom function accumulators provide pressure support during r...
VIEW MORE
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.
EN
AR
CS
DA
NL
FI
FR
DE
EL
IT
JA
KO
NO
PL
PT
RO
RU
ES
SV
TL
IW
ID
LV
SR
SK
VI
HU
MT
TH
TR
FA
MS
GA
CY
IS
KA
UR
LA
TA
MY
