ZQJ178 90 drill pipe screwing tong

ZQJ178/90 drill pipe screwing tong is designed and manufactured by Jiangsu Rushi Machinery Co., Ltd for coal bed methane drill rig. It is used to loosen/tighten joint of drill pipe in coal bed gas exploration and exploitation. Open throat design of tong head allows the tong to escape from drill pipe freely with high mobility. The tong is wholly hydraulic driven with large torque and reliable clamp. Forward-backward movement and upward-downward movement of the tong are driven via hydraulic cylinder, powerful and stable.

Model

 ZQJ178/90
Working flow, hydraulic system l／min 40～60
gal 10.55～15.83
Working pressure, hydraulic system MPa 20.7
psi 3000
Maximum breakout torque kN.m 90
ft.lbf 66372
Applicable range mm φ114～φ178
in 27/8～51/2
Overall dimensions mm 1890×1196×1502
in 72.8×47.1×59.1
Weight kg 1850
lb 4078

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