Coal Mine Rotary Tunnel Drilling Rig

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, it is Portable Coal Mining Core Tunnel Boring Drilling Machine Items ZLJ-250 ZLJ-350 ZLJ-400 ZLJ-700 rated speed 1440 r/min 1440 r/min 1440 r/min 1460 r/min rated current 8.8/5.1 A 11.6/6.7 A 15.4/ 8.8 A 26.6/13.1 A rated pressure 12.5 Mpa 12.5 Mpa 12.5 Mpa 16 Mpa Drill depth 75m 150 m 200 m 250 m drill rod caliber 42 mm 42 mm 42 mm 42 mm/50 mm diameter of drill hole 89 mm 89 mm 108 mm 108 mm drilling angle 0~360° 0~360° 0~360° 0~360° Weight 480 KG 500 KG 615 KG 800 KG Size 1230*600*1185 MM 1250*640*1265 MM 1250*640*1265 MM 1480*680*1290 MM Power 4 KW 5.5 KW 7.5 KW 11 KW Voltage 380 / 660 V 380 / 660 V 380 / 660 V 380 / 660 V Motor type Electric Electric Electric Electric Tunnel drilling machine