1.TQ series of casing tongs are widely used for making-up or breaking-out of casings or pipes.

2.The casing tong features high-efficiency, safety, reliability, labor-saving, and can ensure connection quality.

3.Tong head is designed as open and is fitted with two jaws which can ensure reliable gripping. Air tyre clutch is utilized as gearshifting mechanism, so it is possible to change gear under running.

4. The series of casing tongs can be configured with torque device to perform computer monitoring and managing on pressure, torque and rounds.

5.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			TQ178-16	TQ340-20A	TQ340-35	TQ178-16A	TQ340-35A	TQ340-50
Size Range		mm	101.6-178	101.6-340	139.7-340	101.6-178	101.6-340	139.7-340
		inch	4-7	4-13-3/8	4-13-3/8	4-7	4-13-3/8	5-1/2-13-3/8
Maximum Hydraulic Pressure		MPa	18	16	18	18	18	17.2
		Psi	2610	2320	2610	2610	2610	2494
Rated Flow of Hydraulic Oil		L/Min	114	114	114	114	114	120
		GPM	30.1	30.1	30.1	30.1	30.1	31.
Maximum Torque	Hi-Gear	KN.M	2.4-3	3.7	2.5-3	2.4-3	4.0-5.0	4
		ft.lbf	1770-2200	2730	1844-2200	1770-2200	2950-3680	2950
	Mid-Gear	KN.M	----	----	6.0-7.5	----	----	11
		ft.lbf	----	----	4420-5530	----	----	8103
	Low-Gear	KN.M	16	20	35	15-18	27-30	50
		ft.lbf	11800	14750	25800	11060-13280	19900-22120	36851
Speed	Hi-Gear	RPM	54-97	50-80	60-86	54-79	80-100	72.8
	Mid-Gear	RPM	----	21-30	----	27.4	----	----
	Low-Gear	RPM	9-13.1	6-14	2.6-5.3	8.5-12	12-16	5.4
Overall Size		mm	1540x760x740	1520x850x670	1540x900x860	1500x760x680	1560x900x850	1540x892x908
		inch	61x30x29	60x34x26	61x36x34	59x30x27	61x35x33.5	60x35x33
Weight		Kg	580	560	780	570	780	880
		lb	1280	1234	1720	1250	1720	1940