200m Electric Tunnel Drilling Rig

Jining Bafang Mining Machinery Co.,Ltd is one of the leading 200m electric tunnel drilling rig manufacturers and suppliers in China,Website:http://www.bafangjixiechang.com, welcome to buy cheap and low price 250m underground drilling rig made in China from our factory. ZLJ-650 Rotary mine tunnel underground drilling machine   Description of ZLJ-650 Rotary mine tunnel underground drilling The mine drilling machine mainly suitable for drilling gas drainage/discharge holes, water injection holes in coal bed, geological exploratory holes and various engineering holes. It's suitable for various coal beds and rock formation with the rock. Features of ZLJ-650 underground drilling machine 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 Technical Parameter ZLJ-250 ZLJ-350 ZLJ-650 ZLJ-400 ZLJ-700 Rated torque High  speed 250 350 650 400 700 Medium  speed N·m 150 250 380 230 520 Low  speed 85 100 214 130 310 Rated speed High  speed r/min 340 350 270 340 410 Medium  speed 192 170 151 192 198 Low  speed . 112 99 88 112 150 Rated  pressure Mpa 8 8 8 8 8 Max feed force kN 9 9 34 9 34 Max pulling and lining force kN 12 12 12 12 12 Drilling angle ° 0~360° 0~360° 0~360° 0~360° 0~360° Capacity of drum m 26.3 26.3 40 26.3 40 Diameter of wire rope Mm 8.8 8.8 11 8.8 11 Drill rod caliber mm 42 42 42 42 42 Supply water pressure Mpa 0.6~1.2 0.6~1.2 0.6~1.2 0.6~1.2 0.6~1.2 Power kW 4 5.5 7.5 5.5 7.5 Voltage V 380/660 380/660 380/660 380/660 380/660 Rated  current A 8.8/5.3 9/13.0 15/10.0 13.4/8.8 17.1/11 Dimensions mm 1235×630 1265×650 1200x1290 1280×700 ×1165 ×1020 x700 ×1230 Weight Kg 440 480 630 480 710