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]
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
The DD2710's hydraulic tank is a component that rarely gets attention until something goes wrong—and when it goes wrong in Finnish underground operations, the consequences are disproportionate to the attention it doesn't receive. At Agnico Eagl...
VIEW MORE
The DD2710's boom lift cylinder raises and lowers the B26F boom to position the feed beam at the correct vertical angle for each drill hole in the face pattern. At Agnico Eagle's Kittilä gold mine in Finnish Lapland—where development headi...
VIEW MORE
The boom swing cylinder on the DD2710 moves the entire B26F boom assembly laterally—repositioning between the left and right sides of the face pattern and covering the full cross-section width that the telescopic extension alone can't reach. In...
VIEW MORE
The feed swing cylinder positions the TF512 feed beam in the horizontal plane—swinging it left or right from the boom centerline to cover the full width of the development face pattern. In German Autobahn tunnel construction through the Swabian...
VIEW MORE
The control valve block assembly on the DD2710 is the hydraulic brain of the jumbo—it routes hydraulic flow to every actuator on the rig (boom lift, swing, telescope, feed, rotation, percussion) through a manifold of directional control valves ...
VIEW MORE
Germany's underground coal and potash mining—K+S Group's Werra potash mines in Hesse, and RAG's remaining deep hard-coal operations in the Ruhr—operates Sandvik DD2710 jumbos in heading profiles that require the B26F telescopic boom to re...
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
