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Explore our range of hydraulic tensioning cylinders from world-leading manufacturers.
Hydraulic bolt tensioning delivers uniform, simultaneous load to multiple studs for the most critical flanged connections. Tensioning cylinders provide superior bolt load accuracy compared to torque methods, making them essential for pressure vessels, turbines and high-integrity flange assemblies.
Hydraulic bolt tensioning is a method of stretching a bolt or stud using a hydraulic cylinder fitted over the nut. The cylinder applies axial load directly to the stud, stretching it by a calculated amount. While the stud is stretched, the nut is wound down to the contact face. When hydraulic pressure is released, the stud retains a controlled residual load.
Unlike torque methods that achieve bolt load indirectly through friction (with inherent variability), tensioning applies load directly — resulting in significantly more uniform and predictable bolt loads across a flange. This is why tensioning is preferred for the most critical applications.
Tensioning and torque are complementary technologies. Torque is suitable for the majority of bolted connections, while tensioning is preferred for applications where bolt load accuracy is critical — typically high-pressure, high-temperature or safety-critical flange connections. Many large industrial plants use both methods depending on the application.
Explore our range of hydraulic tensioning cylinders from world-leading manufacturers.
Explore hydraulic tensioning cylinders products, specifications and pricing across the Titeforce network of regional and brand-specific websites:
Bolt torquing applies rotational force to achieve bolt load indirectly through friction, while bolt tensioning applies direct axial stretch to the stud using a hydraulic cylinder. Tensioning is more accurate because it eliminates the friction variability that affects torque-to-load conversion.
Use bolt tensioning for critical applications where bolt load accuracy is paramount — high-pressure flanges (ASME Class 900+), heat exchangers, turbine casings, reactor vessels and any connection where gasket sealing integrity is essential. For general industrial bolting, torque methods are typically adequate.
Yes. Simultaneous multi-stud tensioning is one of the key advantages of the method. Using multiple tensioning cylinders connected to a common pump, all studs on a flange can be loaded simultaneously for uniform bolt stretch and faster assembly times.
TensionPro is a range of precision hydraulic bolt tensioners distributed by Titeforce. The range covers stud diameters from M16 to M100+ and is designed for critical flange assembly in oil and gas, petrochemical, power generation and heavy industrial applications.
Yes. Titeforce provides turnkey bolted joint integrity services including bolt tensioning, through our experienced team of trained and qualified bolted joint technicians. Services are available across South Africa and internationally.
