Specifications

ZQJ178/90 drill pipe screwing tong is used to loosen/tighten joint of drill pipe in coal bed gas exploration and exploitation

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