API Certified Drill Pipe Power Tongs for oilfield

 Hydraulic Drill Pipe Power Tong 

After a quench and temper heat treat, the tool joints are cut into box (female) and pin (male) threads. Tool joints are commonly 120 ksi SMYS, rather than the 135 ksi of the tube. They generally are stiffer than the tube, increasing the likelihood of fatigue failure at the junction. The lower SMYS on the connection increases the fatigue resistance. Higher strength steels are typically harder and more brittle, making them more susceptible to cracking and subsequent stress crack propagation.
Hydraulic Drill Pipe Tong
 
ZQ drill pipe power tong is ideal tool for oil & gas drilling, widely applied for makeup and breakout in offshore and onshore drilling operations and workover operations. Open head design of the ZQ series allows the tongs to disengage from drill string with high mobility. The tong is a combination of spinning tong and torque tong. The tongs are designed and manufactured according to API SPEC 7K.
Specification：

Model		ZQ127-25	ZQ162-50	ZQ203-100	ZQ203-125	ZQ127-25II
Pipe Size in	Drill Pipe	2-3/8~3-1/2	2-3/8~5	3-1/2~8	3-1/2~8	2-3/8~3-1/2
	Casing	2-3/8~3-1/2	4-1/2~5-1/2	/	/	2003/1/2
	Tubing	2-3/8~3-1/2	3-1/2~4-1/2			2003/1/2
Max. Torque ft.lbs		18440	36880	73750	92200	18440
Speed rpm	High Gear	65	60	40	40	65
	Low Gear	10.5	4.1	2.7	2.7	10.5
Air Pressure psi		72~130
Pressure Rating psi		1740	2030	2400	3000	2030
Flow Rating gpm		31.7	31.7	30	30	31.7
Shifting distance		39.4	39.4	59	59	39.4
Travel Distance in		/	/	/	/	/
Lifting Distance		/	/	/	/	0~24.4
Overall Dimension in		44x31x32	62x31x32	69x39x32	69x40.5x53	40x31x35.4
Weight lbs		1360	3310	5290	5840	1540