The Drill Pipe Tong is applicable in the petroleum and mine drilling, it is safety and labor saving, and improving the working efficiency. The tongs have the following features:
1) Using pneumatic power to shift and drive backup tong(ZQ127/25 I,ZQ162/50A,ZQ203/75XA, ZQ203/100, ZQ203/125)
2) It is a integral mechanism made by spin tong and torque tong(ZQ127/25 I, ZQ162/50A, ZQ203/75XA, ZQ203/100, ZQ203/125)
3) Changing gear allowed during operation (ZQ127/25 I, ZQ162/50A, ZQ203/75XA, ZQ203/100, ZQ203/125)
4) New or old drilling pipe joint could be clamped reliably.
5) Both directions could run the maximum torque and rotation speed.
Remark: Model ZQ203/75XA and ZQ203/145X: using planet claw, needn't to change any parts in application range.