TSR 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.

TSR Tensioner

TSR tensioners have been developed to improve productivity and operator safety. Their spring return mechanism provides automatic piston restraction after depressing the system at the end of the tensioning sequence. This ensures the tools are ready for the next operational sequence of tensioning, commencing from zero stroke.

The design of the tool is ideally suited for use on common flange sizes. The geometory of the tool and high load tool capacity ensures that the location is assured and loading of the bolting application is easily achieved.


  • Stock items 3/4” to 4”
  • 8 load cells cover the above
  • Some metric sizes also stocked
  • 1500 bar MWP
  • 10mm stroke (except TSR0 – 8mm)
  • Spring assisted return
  • Profiling for weight saving
  • Single or Twin port options
  • Component interfaces (puller lead in, etc.)
  • Swivel connection available
  • Held in stock
  • Special designs available


  • 24 hr technical support
  • Long life and low maintenance
  • Lightweight and powerful design
  • Automatic piston retraction
  • Safety relief valve to protect seals from overstroke
  • Optional maintenance available
  • Poitive piston step
  • Maximum stroke indicator

Testing & Certification

Boltight is LRQA certified for quality and environmental assurance to ISO 9001: 2015. All tools are CE marked when working at pressures above 100 bar. Boltight tools are assembled, filled with oil and pressure tested prior to despatch.

Designed for simple and reliable operations

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