1.High construction efficiency. As the rig uses a hydraulic chuck with large inner hole, a fixture 6m drill rod in one time, to reduce the numbers of adding and screw-off drill rod and improve the effective working time.
2.As a result of crawler chassis drive, and the rig mast down or up of position adjustment of 400mm. Hole position adjustment time is greatly reduced.
3.The rig has a holder, shackle device. Through cooperation with the operation of the power head chuck, to reduce the operator's labor intensity.
4.The rig adapt to a wide processes. As the rig has a hydraulic chuck with inner hole diameter of Φ110 mm . No need to make any alteration of top-drive head, you can adapt a single tube, double tube, three tube to make jet-grouting, reverse circulation drilling and Φ108 pipe-roof construction.
Theory hole diameter
theory drilling depth
150 ～ 40m
hole angle range
-20 °～ 90 °
hexagonal drill rod：Φ89x79；Φ70x63
Max.torque of top-drive head
rotation speed of top-drive head
80 / 57 kN
Max. feed stroke
1900mm+ 3200mm+ 1100mm=6200mm
height of rotation center
Max.2150mm，Min.1750mm， height differential 400mm
gripping and screw-off device
Φ120， 240KN， 18KNm。
electric motor/ diesel engine： 30kw
Overall dimension(L*W*H) mm
3800 x 2300 x 2000