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Electric rock drilling machine

  • Tunnel drilling rig
  • Tunnel drilling rig
Tunnel drilling rig Tunnel drilling rig

Tunnel drilling rig

  • coal drilling rig
  • Tunnel drilling rig
  • coal mining drilling rig
  • Product description: Hydraulic Tunnel drilling rig
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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.


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


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Contact: Mr.Wang

Phone: 0086-15853783389

Tel: 0086-15853783389

Email: sales@hengwanggk.com

Add: Floor 24 Block C,Haineng Internal No.6 Jinyu Road, Rencheng Zone Jining City Shandong Province

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