1.Brief introductions of ZDY-1250 full hydraulic tunnel drilling rig

ZDY-1250 hydraulic tunnel drilling rig is used for coal mine: Z stands for drilling rig; D stands for tunnel; Y stands for hydraulic driven, and 1250 is the maximum output torque of 1250n. m.

2.Applications of ZDY-1250 full hydraulic tunnel drilling rig

ZDY1250 tunnel drilling rig is mainly used for drilling holes of gas pumping (row), grouting hole, water injection hole, anti process and pressure relief hole, geological exploration hole and other engineering drilling holes. Drilling rig can drill holes in the range of azimuth and dip angle specified in the basic parameter table.

3.Specifications of ZDY-1250 full hydraulic tunnel drilling rig

Project Unit ZDY-1250

Maximum drilling depth m 200

Open hole diameter mm Ф87/Ф115

End hole diameter mm Ф65/Ф75

Drilling pipe diameter mm 50

Drilling angle ° -90-+90

Rated output rotating speed r/min 80/170

Rated output torque n.m 1250/600

Rated power kw 22

Rated voltage v 380/660

Rated current a 42.5/24.5

Feeding force kn 60

Pullout force kn 45

Anchorage force kn 4*45

Rated advance speed m/min 0-1.5

Feed stroke mm 850

Hardness range (protodyakonov scale of hardness)  f≤10

Noise db(a) ≤92

Main engine dimension (long*width*high) mm 2240*1000*1478

Total weight (without drill rod) kg 1820