API Spec 7K Pneumatic&Hydraulic Spinning Wrench

The wrench is the best replacement of rotary rope (or chain). It is applied for the mechanized spinning operation. The applicable range of pipe diameter is wide, and it can be freely adjusted whenever necessary. There are two configurations for clamping mechanism: air tyre and air cylinder. There are two driving and controlling styles: pneumatic and hydraulic. The spinning wrench is designed and manufactured according to API Spec 7K “Specification for Drilling Equipment”

Description

API Spec 7K Pneumatic&Hydraulic Spinning Wrench

The spinning wrench is the best replacement of the spinning rope or spinning chain. It is applied for the mechanized spinning operation. The applicable range of pipe diameter is wide, and it can arbitrarily adjusted whenever necessary. There are two configurations for clamping apparatus: air tyre and air cylinder. It is designed and manufactured according to API Spec 7K.

Operation procedure: hang the wrench vertically 0.3-0.5meters above drill pipe coupling, and make drill pipe around four rollers of the spinning wrench. Operate the right handle of combination valve and make the rollers press on the drill pipe. Then operate the left handle and start the right and left motors. Through right and left reduction devices, the motors will bring the respective drive rollers to rotate. Under the moment of friction, drill pipe will rotate along the rollers, so drill pipe coupling will screw in or screw out.

 

As to different tubular, the opening of spinning wrench may be adjusted to match with it. No need to change rollers. This brings more convenience to manufacture, operation and maintenance of the wrench.

Model Unit Q140-200 Q254-250 Q254-300Y
Drive mode Pneumatic Hydraulic
Size range mm 88.9-139.7 88.9-254 88.9-254
in 31/2-51/2 1931/2/10 1931/2/10
Air Pressure MPa 0.5-0.9 0.5-0.9
psi 72-130 72-130
Hydraulic pressure rating Mpa 14
psi 2000
Max. brake torque Nm 2000 2500 3000
Ft.lbf 1475 1840 2210
Spinner speed RPM 0-90 0-120 0-95
Air consumption m3/min 10.3 15
ft3/min 360 529
Flow LPM 120-140
GPM 32-37
Size mm 1400*530*835 1250*570*465 1100*560*700
in 55*21*33 49*23*18 44*23*28
Weight Kg 378 440 400
lb 833 970 880

 

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