~ZDY-1250 full hydraulic tunnel drilling rig
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