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.
- Effortless piston reset via integrated spring return mechanism, enabling rapid tool removal and repositioning for seamless multi-bolt workflows with minimal manual input.
- 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.
- Enclosed load cells and industrial-grade sealing prevent ingress of dust, moisture, and contaminants, ensuring stable, leak-free operation even in harsh plant environments.
- Interchangeable bridge system allows a single load cell to be used with multiple nut sizes, reducing tool inventory and improving operational flexibility.
- Precision-machined components and tight manufacturing tolerances ensure accurate alignment, long service life, and performance stability under high-pressure use.
- Suitable for bolt sizing from 20 to 100 mm.
- Max. Tensioning Load up to 3,200 KN.
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.
- Effortless piston reset via integrated spring return mechanism, enabling rapid tool removal and repositioning for seamless multi-bolt workflows with minimal manual input.
- 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.
- Enclosed load cells and industrial-grade sealing prevent ingress of dust, moisture, and contaminants, ensuring stable, leak-free operation even in harsh plant environments.
- Interchangeable bridge system allows a single load cell to be used with multiple nut sizes, reducing tool inventory and improving operational flexibility.
- Precision-machined components and tight manufacturing tolerances ensure accurate alignment, long service life, and performance stability under high-pressure use.
- Suitable for bolt sizing from 20 to 100 mm.
- Max. Tensioning Load up to 3,200 KN.
Why Use Tritorc's Spring Return Hydraulic Bolt Tensioner
Special Seal Kit
With a lower coefficient of friction the spring return mechanism retracts the piston faster.

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

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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