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  2. Fastening Components
  3. Bolt & Stud Tensioners
  4. BOLTIGHT® TSR+ Hydraulic Tensioner (Nord-Lock Group)
BOLTIGHT® TSR+ Hydraulic Tensioner-TSR+ 0
BOLTIGHT® TSR+ Hydraulic Tensioner-Nord-Lock Group

BOLTIGHT® TSR+ Hydraulic Tensioner
Nord-Lock Group

About This Product

■World's fastest automatic piston back function

It is not uncommon for some bolt tensioners to have a spring return function that automatically returns the piston to its pre-pressurized state after use in order to improve work efficiency.However, there are many cases where the piston does not return to its original position completely and requires manual intervention, and in some cases it does not actually significantly improve work efficiency. Voltite's TSR+ tensioner incorporates an ultra-strong spring developed in-house and pistons back four times faster than conventional products, ensuring it returns to its original position without any manual work. This tensioner saves working time, is simple to handle, provides safety on the work surface, and is sturdy.

■Features of TSR+:

・Reliability that does not cause tensioner performance deterioration ・Improved safety valve function to prevent overstroke due to excessive pressure ・Improved wear resistance through special surface treatment using proprietary technology. Can be used for a longer period of time even in harsh environments ・Improved overall tensioning performance through improved sealing technology

■Hydraulic tensioning mechanism

・Attach the tensioner to the bolt ・Due to the pressure of the oil filled from the pump, the puller that grips the bolt with its female thread is lifted by the piston. ・When the puller is lifted, the bolt is stretched and tightening axial force is applied to the bolt. ・Insert the bar into the insertion hole of the socket, tighten the nut, and seat it. ・When the hydraulic pressure is removed and the bolt is released, the stretched bolt tries to return to its original length, but because the nut is seated, it cannot return, and the reaction force acts as an axial force that passes through the nut and fixes the fastener.

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    BOLTIGHT® TSR+ Hydraulic Tensioner

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1 Models of BOLTIGHT® TSR+ Hydraulic Tensioner

Image Part Number Price (excluding tax) Oil type Stroke Tensioner type Maximum pressure
BOLTIGHT® TSR+ Hydraulic Tensioner-Part Number-TSR+ 0

TSR+ 0

Available upon quote

ISO32 or equivalent

10mm (0.375")
*Only "TSR+ 0" compatible with M20 and M22 is 8mm (0.315")

Single stroke type
Enhanced automatic piston back function

1,500bar (21,750psi)

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About Company Handling This Product

Nord-Lock Group

Company Overview

Nord-Lock Group, established in 1982 and headquartered in Sandviken, Sweden, is a manufacturer and supplier of...

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  • Sweden

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Bolt & Stud Tensioners
Bolt & Stud Tensioners　Nord-Lock Group
Nord-Lock Group

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