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Spring Return Hydraulic Bolt Tensioner


Square Drive Hydraulic Torque Wrench

For industrial workflows where speed and consistency are non-negotiable, Tritorc's SLT Series Spring Return Hydraulic Bolt Tensioners are engineered to do both; deliver fast, repeatable bolt tensioning while ensuring uniform load distribution across every single joint. With a spring-return mechanism that eliminates manual resets, the SLT Series reduces fatigue and simplifies operations even in high-frequency, precision-critical bolting applications.

  • Suitable for bolt sizing from 20 to 100 mm.
  • Max. Tensioning Load up to 3,200 KN.
  • Effortless piston reset via integrated spring return mechanism, enabling rapid tool removal and repositioning for seamless multi-bolt workflows with minimal manual input.
  • Built-in stroke limit valve prevents piston over-stroke in hydraulic bolt tensioners, ensuring safety, protecting components, and maintaining accurate tensioning.
  • Precise piston stroke options of 8 and 10 mm in bolt tensioners provide greater reach, control, and accurate tensioning.
  • Advanced composite seals prevent fluid leakage, maintain pressure integrity, and enhance safety for reliable high-pressure bolting operations.
  • Axial load application ensures zero torsion during tensioning, preventing thread galling, joint damage, or fastener fatigue caused by conventional bolting methods.
  • Direct pressure-to-load conversion tightly regulates bolt elongation, delivering repeatable and uniform clamp force across all fastening points.
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Why Use Tritorc's Spring Return Hydraulic Bolt Tensioner


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Piston Cylinder Misalignment Compensation

Engineered to handle angular or axial deviations, this feature ensures hydraulic bolt tensioners maintain precise load transfer. By compensating misalignment, it minimizes side forces, reduces wear, and delivers consistent tensioning accuracy, enhancing safety and reliability in critical industrial bolting operations.

Tool Specifications


Professional tensioning tools for industrial applications. Select a model to view detailed specifications and technical drawings with precise measurements.

A
66 mm
B
93 mm

Technical Drawing

Technical Drawing of SLT1 for bolt size 3/4"
SLT1
C
63 mm
D
136 mm
160 kN
Cylinder Capacity
10.67 cm²
Hydraulic Area
1.4 Kgs
Weight
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Download specifications catalog


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Get Operation Manual

It is Operating Manual of TSL Series and THL Series Wrenches, please read carefully, follow instructions, warnings, and cautions before using the tools.

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Get Product Brochure

It is Operating Manual of TSL Series and THL Series Wrenches, please read carefully, follow instructions, warnings, and cautions before using the tools.

Custom Hydraulic Bolt Tensioning Solutions


Custom Hydraulic Bolt Tensioning Solutions

Not every joint fits the standard. At Tritorc, we engineer custom hydraulic bolt tensioning solutions tailored to your unique dimensional, load, and environmental requirements. Our in-house design and manufacturing team develops tools that deliver precision, repeatability, and safety.

From subsea operations to high-load multi-stage applications, our comprehensive range covers varied industrial demands including rapid-cycle spring return systems, standard topside tensioning, and turbine closure tools that eliminate the need for induction heating during casing assembly.

Oil & Gas (Up-/Mid-/Downstream)

Engineered for rapid, repeatable bolting in high-pressure environments, ideal for field maintenance and shutdown operations.

Pipeline Flanges & Valve Joints
Pressure Vessel End Covers
Heat Exchanger Channel Covers
Pump & Compressor Assemblies
Wellhead & X-mas Tree Flanges
Offshore Deck Flanges
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FAQs


Select your required Torqueing tool as per specifications. Rest assured for the best hydraulic torque wrench quality and price.

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