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Hydraulic power tongs GKSH-4000/5000 integrated with hydraulic backup
02.06.2021

These HP Tongs are the next step in the development of the GKSH 5000 model. To provide tong performance with higher torque, the jaws were reinforced.

The two-section hydraulic motor and manual gearbox provide four different torque ranges at the same fluid pressure from 0 to 190 bar. The coverage by the jaws along the entire circumference reduces tubular damage to thin-walled pipes.

Hydraulic backup based on a unique development of Ufagidromash LLC has a number of innovative solutions:

  • the pipe is gripped with three jaws, that distribute gripping forces over a greater area without damaging the casing;
  • jaws with an extended range are used, which allows by one set of jaws to grip the pipe body, the pipe coupling, the casing shoe, the cementing check valve;
  •  the simplicity of the design allows you to quickly replace the jaws for different range of pipe diameters;
  • there is no need to reinstall the jaws into the position of making up and breaking out of the string;
  • special attention is paid to the joint of the Hydraulic backup with the main tong body. The two-point attachment equidistant from the center of the pipe with a balancing torsion eliminates the appearance of radial bending forces on the thread. This arrangement allows pipes to be made up with "pure" torque without additional friction in the threaded joint.

Please note that it is easily achievable to modernize and equip the tongs GKSH-4000M and GKSH-5000M with a Hydraulic backup.

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