50m Diesel Tunnel Drilling Rig

Jining Bafang Mining Machinery Co.,Ltd is one of the leading 50m diesel tunnel drilling rig manufacturers and suppliers in China,Website:http://www.bafangjixiechang.com, welcome to buy cheap and low price 50m underground drilling rig made in China from our factory.  ZLJ-250 tunnel drilling rig  Production Features  ZLJ tunnel drilling rig 1.The machine mainly used for underground internal various angle water prospecting, exploration of coal, gas drainage, dust protection and water injection and other uses of the drilling.  2.360 degrees rotary drilling drilling of 50-300m.  3.It can also be used on the ground geological exploration, building foundation reinforcement and other uses of drilling.  Technology Parameters          Item Unit ZLJ-250 Rated torque High  speed 250 Medium  speed N·m 150 Low  speed 85 Rated speed High  speed r/min 340 Medium  speed 192 Low  speed . 112 Rated  pressure Mpa 8 Max feed force kN 9 Max pulling and lining force kN 12 Drilling angle ° 0~360° Capacity of drum m 26.3 Diameter of wire rope Mm 8.8 Drill rod caliber mm 42 Supply water pressure Mpa 0.6~1.2 Power kW 4 Voltage V 380/660 Rated  current A 8.8/5.3 Dimensions mm 1235×630 ×1165 Weight Kg 440