1, the clutch is in the state, the belt does not rotate in front
Rigs 2 and 200 have no reversal or reversal
3, drilling rig can be decided angle straight and inclined type tower played the best selection of high speed soil 75~90.
4, the earth under the active drill pipe with variable diameter plus three wing bit
A rock drill rod diameter variable connecting head connected with the active hole pipe is connected with the drill rod, to a certain depth in the head, above 2m depth hole pipe into the core tube, 60 meters deep need for powder tube.

5, the diameter becomes bit.
6, to speed up, need to speed reducer belt rotation, drilling speed faster, but the endurance of drilling rig is low.
7, work efficiency: complete soil layer, hit 60 meters a day. General strata 16, 7 meters.
8, hydraulic oil with 32 oil, cold place with No. 42
9. Connection of wire rope and lifting device. The elevator is hung on the rope for pulling the drill pipe / active drill pipe, length of wire rope by derrick decided.
10, the coal mine roadway drilling rigs are available, without.

Control system	Hydraulic system

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