250m Electric Tunnel Drilling Rig
Jining Bafang Mining Machinery Co.,Ltd is one of the leading 250m electric tunnel drilling rig manufacturers and suppliers in China,Website:, welcome to buy cheap and low price 250m electric tunnel drilling rig made in China from our factory.ZLJ-700 tunnel drilling rig 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. 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 Technical Parameter ZLJ-700Rated torqueHigh speed700Medium speedN·m520Low speed310Rated speedHigh speedr/min410Medium speed198Low speed.150Rated pressureMpa8Max feed forcekN34Max pulling and lining forcekN12Drilling angle°0~360°Capacity of drumm40Diameter of wire ropeMm11Drill rod calibermm42Supply water pressureMpa0.6~1.2PowerkW7.5VoltageV380/660Rated currentA17.1/11DimensionsmmWeightKg710
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