Drill Pipe Rotary Clamping Device is installed on the wellhead, when the Kelly is not on the wellhead (inside the rotary table), it may give drill pipe a forward torque or backward torque, and to finish forward rotation or backward rotation and the hole reaming operation instead of the Kelly.
Drill Pipe Rotary Clamping Device can be directly installed on the well head or casing on the drill tools without unleashing the drill tools. It can accommodate drill pipe from 3 1/2 inch to 5 inch, the rated torque of it is 60 KN.m.