Low Clearance Hydraulic Torque Wrench KHK

Low clearance hydraulic torque wrenches are made up of a main device, i.e. the drive unit and various adapter size (related to hex size). Casings of these devices are made of  lightweight alloy based on aluminium and titanium compounds whilst the ratchet and driving units are manufactured with use of ‘ultra steel’ that makes them as sturdy and durable as titanium pieces. Hydraulic socket wrenches with adapters are perfectly suitable to tightening and loosening bolts on flange connections – it is why they are also called as hydraulic wrenches with adjustable torque for flanges. The wrenches collaborate with hydraulic power packs (800 bar) that can be powered by an electric motor or a compressed air drive. The power pack is remotely controlled by means of a dedicated remote control unit. Operation in the fully automatic mode is as option.

Bolts are tightened with the controlled torque up to the required limit, which is achieved by setting a specific oil pressure on a connected manometer, where the pressure corresponds to the desired torque. The torque values and associated oil pressures can be found on the table of torques that is attached to each wrench.

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  • movable (360º) hydraulic connection with one or two hoses,
  • small radiuses of transient adapters
  • quick and easy replace of adapters and size reduction sockets
  • various sizes of wrenches
  • suitable for all applications owing to flat design
  • accurate repeatability of operation ±3%
  • maximum working pressure of 800 bars
  • driven by means of a three-stage hydraulic power pack supplied with voltage of 230 VAC or 400 VAC or with compressed air


  • suitability for all applications
  • reliability
  • operation safety
  • long lifetime
  • lightweight design

Aplication Area

  • for all industrial sectors,
  • in particular for confined locations with limited access