TQ series of hydraulic casing tongs are widely used for making-up or breaking-out of casings or pipes. The series of casing tongs are wholly hydraulic driven. The tongs are configured with a large-torque motor and perform mechanical gearchange. Structure is simple and operation is safe. The casing tongs can be supplied with torque device to perform computer monitoring and managing on pressure, torque and rounds. The casing tong has been granted with National Invention Patent. The casing tongs are designed and manufactured according to SY/T5074 and API Spec 7K Specification for Drilling Equipment

Model			TQ178-16Y	TQ340-35Y	TQ508-70Y
Size range		mm	101.6～178	114.3～340	244.5～508
		in	4～7	4～13	9～20
Max.pressure		MPa	18	21	20
		psi	2610	3045	2900
Working flow		L/min	110～160	110～170	110～170
		gpm	29.3～42.7	29.3～45.4	29.3～45.4
Max. torque	Hi. gear	kN.m	2.4～3	4.0～5.6	8.4～10.7
		ft.lbf	1770～2210	2950～4130	6190～7890
	Low gear	kN.m	15～18	26～35.2	48.9～70.5
		ft.lbf	11060～13270	19175～25960	37244～52000
Speed	High gear	rpm	54～79	57～95	26～43.6
	Low gear	rpm	9～13	9～15	4～6.6
Size		mm	1500×760 ×780	1580×900×860	2080×1280 ×760
		in	59×30×30.7	62.2×35.4×33.9	82×50.4 × 30
Weight		kg	560	760	1550
		lb	1230	1670	3410