Spring Return Hydraulic Bolt Tensioner

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.
Spring Return Hydraulic Bolt Tensioner
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.
Why Use Tritorc's Spring Return Hydraulic Bolt Tensioner
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.
Technical Drawing

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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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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
Not every joint fits the standard. At Tritorc, we engineer custom hydraulic bolt tensioning solutions tailored to your unique dimensional, load, and environmental requirements. Whether you're working with non-standard bolt spacing, restricted access, or extreme operating conditions, our in-house design and manufacturing team develops tools that deliver precision, repeatability, and safety.
Alongside custom builds, Tritorc offers a full range of hydraulic bolt tensioners designed to meet varied industrial demands, covering subsea operations, high-load multi-stage applications, rapid-cycle spring return systems, standard topside tensioning, and turbine closure tools that eliminate the need for induction heating during casing assembly.
Our Design Key Considerations:
- Bolt-to-Bolt Distance Accommodation - Customized spacing solutions for unique configurations
- Bolt-to-Body Clearance Optimization - Maximizing access in restricted environments
- Tailored Bolt Size & Industrial Requirements - Precise engineering for specific applications
- Material & Coating Optimization - Enhanced durability and corrosion resistance
- Ultrasonic Monitor Integration - Real-time tension monitoring capabilities
- Adaptable Bridge and Puller Configurations - Flexible tooling arrangements
- And More... - Comprehensive custom engineering 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.
FAQs
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Product Inquiry
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