Foundation tensioning is one of the most complex tightening operations in a wind turbine assembly project.

Aspects such as dirt, misalignments, rust, elongation control, oil return speed…makes difficult the bolt tightening, and can cause assembly errors.
This family of tensioners are designed to facilitate foundation tightening.
Safety is another aspect that should be not neglected. We have included safety features commonly used by Texas Controls in other series of tensioners.
Our designs and developments have proven to be the most reliable, user friendly and fastest units on the market, based on constant improvements achieved during our co-creation processes together with the end users.
Viaduct and Bridge Formwork are part of our extensive experience in special applications. We have developed special tensioning systems taking into account the strict and difficult to meet requirements that this industry suffers.

We offer not only standard bolt tensioners but also specially designed tools supported by our on-site engineering services.

The PD Range of Tensioners was designed with an idea in mind: bring to the classical foundation tensioners, the best features of the blade tensioners, but for high bolt protrusion distances.

Our designs and developments have proven to be the most reliable, user friendly and fastest units on the market, based on constant improvements achieved during our co-creation processes together with the end users.

Main Features:

  • Safety: PD tensioners incorporates the same safety features than the blade tensioners:
    • Anti-projection device in case of a puller bar failure.
    • Positive Stop.
  • Slim Design: Double decker type ensures high loads in limited radial clearance applications.
  • Gear Box: We have the most reliable gear box in the market.
  • Fastest Oil return, avoiding unnecesary time wasting.
  • Laser Engraved Scale: Allows an easy elongation control by the user.
  • Improved square drive design.
  • Different Thread Tolerances available.
  • Different nut sizes and types available.

Data Sheet

The BR Range of Tensioners was designed to suit the classical foundation application: High bolt protrusion and reduced space.
The BR-W range it is designed to suit Williams rebar applications.
Short Stroke and long Stroke models are available.

While maintaining the main features of our PD series, the BR Series is an open version for through bolt application, such as Williams 75 and 150 ksi, metric or any other bolt type used in foundation applications.
Our BR Series, unlike other through bolt applications, respect the speed requirements such as oil and stroke return thanks to its unique Belleville spring return system, its heavy duty nut rotating gear box, or its slim design and high load capacity.

Main Features:

  • Max. working pressure 1.350 / 1.500 bar
  • Max. stroke 10 – 20 mm
  • High pressure quick connect couplings, with no o-rings needed, ensure better performance.
  • Max Stroke indicator.
  • Belleville spring return system.
  • Non Over Stroke System
  • Metric & special threads are available under request.

Data Sheet