Characteristics：

The tong head used inner curved roller climbing and clipping mechanism and needn’t to change any part during making up or breaking out the tubing thread.

Four-gear rotation is adopted for large speed regulation range. And the rated torque is large.

The braking mechanism set above the tong head cover. It’s convenient for adjustment and maintenance.

The new hydraulic backup tong and the master tong form a combined tong, operate the control valve on the master tong, the backup tong will automatically clip or simultaneously loosen the tube pillar.

Adjust the oil supply pressure, users can obtain the best make-up torque of various kinds oil tube.

Users can equip hydraulic suspension according to needs, the suspension valve compactly contact with hand control valve, so it is easy to control.

Users can equip torque control system according to needs, which can accuracy control make-up torque.

This product has owned several patent of China.