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Multi-stage Hydraulic tensioner by Plarad

Slim and universally applicable series make the hydraulic tensioners PSD, PST and PSQ the optimal tool when it comes to using in confined spaces.


  • Optical over stroke indicator
  • Hydraulic unit can be aligned/rotated/around 360°
  • Avoid damage due to spring-assisted coupling between the rotating sleeve and hexagon nut
  • Removable handle and carrying strap for maximum comfort and safety during transport and use
  • suitable for the use of parallel-connected tensioners
  • Anti-rotation between tension nut and tension bolt using feather key

Application examples 

  • Available in sizes M30 to M80 and power classes 471kN to 3587kN
  • Case counter: definition of the maintenance time
  • Optimal geometry of the support surface
  • Maximum safety thanks to “fail-safe piston clamping”: the end stop limits the extension of the piston (even under maximum load).
  • Highest speed: fast working due to automatic piston reset.
  • Long-lasting and sustainable due to connection of cylinder tubes via bayonet lock: Components are easy to disassemble and replace for servicing

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Also available as: 

For axial restricted installation situations