Bolt Tensioners

Increase the productivity and safety of your job site when tensioning bolts up to 4” (115 mm) with the SPX Bolting Systems range of bolt tensioners from Hytec South Africa. With up to 1 500 bar of maximum tool force, these premium-quality spring return and manual return bolt tensioning tools deliver the precise power you need to make light work of even the toughest bolt tensioning requirements.

Manual Return Bolt Tensioner (MRT)

Manual return tensioners incorporate a unique quick-release bridge adaptation & a range of adapter kits for maximum flexibility on your job site.


Spring Return Bolt Tensioner (SRT)

With a quick-release bridge adaptation & piston stroke indication, spring return tensioners provide max. productivity for bolts from 20 to 115 mm.


Hydraulic Bolt Tensioners

Manual bolt tensioners (MRT) and spring return bolt tensioners (SRT) make up the range of SPX Bolting Systems bolt tensioners from Hytec South Africa.

The MRT version, a low-cost bolt tensioning solution, incorporates a unique quick-release bridge adaptation and comes with a range of adapter kits enabling maximum flexibility.

The SRT design dramatically increases productivity and safety on the job site when compared to older technology and MRTs. The range incorporates a patented spring return load cell that assists with piston retraction, contributing to reduced operator fatigue and, therefore, increased operator safety.

For bolt tensioners that meet your application requirements, contact Hytec South Africa today.

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Hydraulic tensioner features

In addition to constant product development that ensures we provide the most appropriate hydraulic bolt tensioning tools and tensioning equipment for your unique requirements, our range offers the following features:

  • Designed to fit BS1560/ANSI B16.5/API flanges
  • SRT tool load: 280 – 2 500 KN
  • MRT tool load: 160 – 3 200 KN
  • Max tool pressure: 1 500 bar
  • SRT prevents over-extension with over-stroke eliminator
  • MRT tool variety provides coverage from 24 to 100 mm

A fully-enclosed load cell design on the manual return bolt tensioners ensures that debris cannot enter the piston retraction mechanism, and the entire range is compatible with those in the spring return bolt tensioner range.

Hytec South Africa is the largest supplier of hydraulic systems and components in Africa, including hydraulic maintenance tools, which incorporate our range of bolting solutions.

Get a bolt tensioner for your specific application requirements, contact Hytec SA today.

Complementary bolting solutions

In addition to its comprehensive range of bolt tensioners, Hytec SA sources, stocks and supplies additional bolting solutions. These are:

  • Nut Splitters: 2 variations in this range. The hydraulic nut splitter with a 15 & 25-ton model that reduces the risk of bolt damage via a unique dial-in feature; and the ENS hydraulic nut splitter with a triple-edged replaceable cutting blade.
  • Torque Wrenches: this range of hydraulic torque wrenches is made up of low clearance, square drive and high cycle torque wrenches. Low clearance models have a long neck and small radius that allows for bolt fastening and torqueing in difficult-to-access areas. The high cycle variant caters for up to 50 000 operating cycles and the square drive version enables faster, high-strength torqueing.
  • Torque Wrench Pumps: electrically powered torque wrench pumps and torque wrench pumps for air make up this range. The former can be used on single- and double-acting tools and the latter has the advantage of air as a power source.


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