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Hydraulic single-stage tensioners

Available in various sizes and configurations – The right choice for your bolts!

The optimum tensioner when it comes to use in confined spaces. 

Thanks to its flat design, the PSE single-stage hydraulic tension cylinder offers a distinct advantage,
particularly in tight, axially confined spaces. The knurled attachment included in the scope of delivery
also ensures that the tensioner can be turned open in the case of excessively long bolt protrusions

  • “Fail-Safe” piston chambering: maximum safety due to continuous stroke limitation: prevention of the piston from moving out due to end stop even at maximum operating pressure
  • Optical over stroke indicator
  • Hydraulic unit can be aligned/rotated/moved around 360°
  • Avoids 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
A PLARAD hydraulic tensioner with a blue carrying strap and a Starker Hydraulischer Spannzylinder PSE von Plarad on a white background.
CYCLE COUNTER – Prevention of damage and failures through preventive maintenance
Quick and easy screw-on of the nut via toothed drive guaranteed
Optimised support surface for tight spaces
Zu sehen ist eine Schaltfläche mit der Aufschrift 'Request an offer now!

Application examples 

A row of identical hydraulic tensioners ready for export. It is displayed in workshop background.
Two workers, wearing helmets and safety gear, carefully repair machinery in an industrial facility. They use precision bolting technology, hydraulic tensioners, and torque wrenches made in Germany to ensure optimal performance and safety.
Eine Person befestigt fachmännisch einen hydraulischen Drehmomentschlüssel mit großen Schrauben an einer Metalloberfläche und demonstriert so die Präzision und Zuverlässigkeit von Schraubtechnik und Drehmomentschraubern „Made in Germany“.
A hydraulic tensioner is deployed to fasten the bolt on wind turbine.
A technician wearing an orange helmet inspects industrial machinery, carefully examining bolts and hoses while using a Plarad PSD hydraulic tensioner on a wind turbine.
A worker in a yellow jacket skillfully operates machinery on a snow-covered, icy surface, demonstrating the performance and precision of the "Powerful Multi-Stage Tensioner from Plarad.
The equipment on the snow-covered mountain, paired with sturdy metal railings against a clear blue sky, ensures safety and efficiency. Plarad's on-site customer service provides expert assistance for your bolting challenges and is ready to assist with any challenges that arise in the breathtaking setting.
  • Available in sizes M24 to M72 and power classes 305 to 2960 kN
  • Case counter: defines the time of maintenance
  • Optimal geometry of the support surface
  • “Fail-Safe” piston chambering: maximum safety due to continuous stroke limitation: prevention of the piston from moving out due to end stop even at maximum operating pressure
  • Highest speed: fast working due to automatic piston return
  • Long-lasting and sustainable due to connection of cylinder tubes via bayonet lock: Components can be easily disassembled and replaced for servicing

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Also available as: 

Two hydraulic torque wrenches with blue handles stand upright against a simple background, demonstrating precision similar to that of a multi-stage hydraulic tensioner from Plarad.
This symbol represents your PSD that is our hydraulic tensioners.

The multi-stage hydraulic tensioners PSD, PST & PSQ

For radially restricted installation situations

Get in touch now!