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Boltight TSR+1 Hydraulic Bolt Tensioner

280 k.N Hydraulic Bolt Tensioner, Auto Return Cylinder, [M24-M27], 1“ - 1.1/8“

Model TSR+1
Capacity 28 Ton
Capacity 280 k.N
Bolt Size M24 - M27
Bolt Size 1" - 1.1/8" inch
Working Pressure 1500 Bar
Tool Type Auto Return
Stroke 10 mm
Hydraulic Area 18.7 cm²
Outside Dia. 87 mm
Tool Weight 9.3 kg
Brand - Origin Boltight / U.K
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  • Load capacity range 16 – 320 t
  • Load capacity range 160 – 3200 k.N 
  • Compatible with metric bolts from M20 – M100
  • Compatible with imperial bolts from 3/4” – 4.0”
  • 1500 bar maximum working pressure
  • 8 mm stroke and 10 mm stroke available
  • Suitable for single or multi-tensioning applications
  • Custom designs available to your specification
  • Designed to fit standard flanges, single-twin port options
  • Origin United Kingdom, Manufacturer Boltight -Nord Lock


Technical Specifications

Fastest Auto Return Tensioner on the Market

The all new TSR+ auto return tensioner range has been designed to ensure fast, simple, safe and reliable operation. With a focus on productivity and a reduction in downtime we have implemented state of the art materials and technology resulting in significant time saving during operation.

Increased Safety

TSR+ Load cells have a relief valve to prevent accidental overstroke of the tool. This safety mechanism prevents seal blowouts and the users exposure to the ejected oil.

Improved Seal Technology

Latest design eases seal changeouts and enhances general performance throughout high cycle usage. 

Model Capacity  Outside Dia. Bolt Size Hydraulic Area Stroke Bolt Thread Pitch A H1 H2 H3 E Weight
No Ton k.N mm  (D1) metrik (D2) inch cm² mm mm Thread Pitch mm mm mm mm mm kg
TSR+1 28   280 87 M24 1’’ 18.7 10 36 3.0   117 24 175 24 9.3
87 M27 1-1/8’’ 18.7 10 41 3.0   117 27 178 27 9.3

How Bolt Tensioner Works:


Applications including:

  • All Oil & Gas Flanges
  • Heat Exchangers
  • Pressure vessels
  • Exchange covers & nozzles
  • Boiler feed pump
  • Manufacturing machinery
  • Cranes
  • Clamps



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