Characteristics：

Closed head design,which can better ensure the alignment of the tube and more accuracy of  the alignment.

Two speed operation which have a big differential，fast speed in high gear, big torque in low gear,and torque can be controlled.

With lubricating device which can ensure the sufficient lubrication of the moving parts and absolute seal.

Roller chain drive is adapted in the tail.

Using adjustable friction clutch can not parking shift, not only improve the service

life of transmission parts, but also has the ability of overload protection.

Pliers drive motor, hydraulic control valves and back-ups reversing valve adopts

imported assembly.

High strength safety torque arm.

The back-up tong adopts cylinder clamping which can reduce the damage to the pipe.

Can equipped with hydraulic spring lift bucket, satisfy any operation position.