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    High load. Tight space.
    Critical bolting.

Base foundation tensioners

Base series tensioners are designed to meet specific requirements for tightening foundation bolts. They are versatile and reliable hydraulic bolt tensioners suitable for high load, tight space applications, and for variable and extended stud protrusions often relevant to wind turbine foundation bolt applications.

Optimised for use on wind turbines they have been designed for long-life, low-maintenance use, and are suitable for use on single bolts, or grouped together for multiple tightening of bolted joints.

Base tensioners are extensively used for crane slewing rings, and foundation bolting on many types of civil construction projects such as bridge building.

Safe and reliable, Base series foundation tensioners feature the latest technology.
  • Latest seal technology
  • High cycle life
  • Optimised load to weight ratio
  • Integrated system with TensionPro pumps and hoses
  • Special threads
  • Special load requirements
  • Twin or single port
  • Protective handle
  • Special bridge for tight clearance
  • Gear drive nut run-down
  • Spring piston return
  • Misalignment compensation
  • Special anti-corrosion, antiwear surface finish
In stock for quick delivery
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  • base_tensioners
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    Long stud protrusion design

  • base_tensioners

    Short stud protrusion design

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    NEW elliptical piston tools for extra clearance

Standard designs available for standard and special form bolting and post-tensioning systems including:
• Metric • UN • Williams • Macalloy • Fatbar • Dywidag


Unit 15 Morgans Business Park
Betty’s Lane
Norton Canes
WS11 9UU

Tel: +44 (0)1543 448800

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Secure Bolting Systems Limited

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