Nord-Lock Group About Boltight Products Foundation Tensioners

Boltight has been at the forefront of hydraulic bolt tensioning for over a decade. Our tensioning tools provide fast, accurate and safe solutions to tighten and loosen multiple bolts simultaneously.

Foundation Tensioners

Boltight’s range of foundation bolt tensioners have been specifically designed for wind turbine base and foundation bolts.

They meet the exacting requirements of the wind industry, while remaining reliable and easy to use.

Boltight tensioners are kept in stock for the most common wind turbine applications.

Features

  • 1500 bar
  • Common to many bolt sizes
  • Economy (customer nut) and split nut types also available
  • Spring return, gearbox, positive stop etc available as options
  • Optional single or twin connectors
  • Optional cycle counter
  • Long life composite seals
  • Comprehensive operating manual
  • Over-stroke prevention device
  • Maximum stroke indicator

Technical Guide

Suitable for the most common threadforms:

  • Williams
  • Standard metric
  • Standard imperial
  • Macalloy
  • Dyson

Suitable for the most common OEM wind turbines:

  • Clipper
  • Vestas
  • Gamesa
  • GE
  • Nordex
  • Siemens
  • RE Power
  • Sulzon
  • MHI

Advantages

  • Easy to use
  • Durable and reliable design
  • Gear driven nut run-down
  • Extra durable gearbox
  • Optimised size and weight
  • Easy maintenance

Testing & Certification

Boltight is LRQA certified for quality and environmental assurance to ISO 9001: 2015. All tools are assembled, filled with oil and pressure tested prior to despatch.

More insights and references

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Customer Cases Tightened Just Right In a 2006, American Bridge and Fluor got the assignment to build the new eastern span of the San Francisco–Oakland Bay Bridge, the largest public works project in California’s history. Read more
Customer Cases On site, offshore, under pressure Dutch company Heat Solutions on Site BV (HSOS) is a leading service provider in the metal sector. Their services include heat treatment and machining on site. Read more

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Boltight product range

Boltight Boltight Typhoon+ Hydraulic Tensioners Meet the technical and environmental demands of the wind energy market with Typhoon+. Read more
Boltight Boltight Standard Bolt Tensioners Use the same tensioner for all standard Oil & Gas flanges, unsurpassed in its ease of use during installation. Read more
Boltight Boltight Subsea Tensioners Secure your Subsea applications with this nickel-plated tensioner designed to withstand high initial bolt stress. Read more
Boltight Boltight Typhoon Tensioners A compact tensioner to fit tight-access locations, this tool suits wind turbine applications Read more
Boltight Boltight Echometer Range Compact and portable, these ultrasonic tools quickly and accurately measure bolt load Read more
Boltight Boltight TSR+ Tensioners Ensure quick and safe operations with the fastest auto return tensioner to date. Read more
Boltight Boltight Xtra Range For higher loads and reduced dimensions, the Xtra range fits all Norsok compact Oil & Gas flanges Read more
Boltight Boltight Foundation Tensioners For wind base and foundation bolts, this tensioner is suitable for most common threadforms Read more
Boltight Boltight Hydraulic Nuts For permanent replacement when nuts are required Read more
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Boltight Boltight Multi-Stud Tensioners Custom-designed for simultaneous tensioning, reducing time compared to individual tooling Read more
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Solutions for your industry

Boltight for Oil & Gas
Boltight for Subsea
Boltight for Power Generation
Boltight for Wind
Boltight for Industrial Sectors

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