Tensioners

A robust portfolio of hydraulic bolt tensioners engineered for accurate, simultaneous bolt loading in critical joint applications. Designed to apply precise axial load across defined minimum–maximum tension ranges, these systems eliminate torque-related inconsistencies and ensure uniform clamping force. Suitable for demanding industrial environments, hydraulic bolt tensioners are widely used where joint integrity, safety, and repeatability are paramount.

The ABS standard range bolt tensioners embody versatility and dependability, serving as hydraulic tensioners well-suited for a wide spectrum of bolting applications. Their optimisation for top-side operations makes them particularly fitting for tightening ANSI, ASME, and API flanges.

Standard

The ABS multi-stage bolt tensioners offer versatility and dependability, serving as hydraulic bolt tensioners well-matched for demanding high-load and confined-space applications. Tailored for utilisation on wind turbines, this multi-stage hydraulic bolt tensioner is crafted to endure extended usage while requiring minimal maintenance.

Multistage

When space is tight and loads are heavy, the ABS direct-fit hydraulic tensioners step up to conquer the challenge. This ingenious one-piece design delivers a perfect fit for confined environments, eliminating the need for bulky adapters and simplifying setup.

Direct Fit

ABS hydraulic nuts revolutionize large bolt tensioning, offering a safe, efficient, and precise solution. This nut features an internal jack with an external locking collar. Pressure creates a gap between the nut and collar due to joint compression, gasket presence (if applicable), and bolt elongation.

Hydraulic Nuts

Hydraulic Bolt Tensioning for Critical Applications

Hydraulic bolt tensioners are designed to apply precise and simultaneous axial load across multiple bolts, making them suitable for critical joints where accurate and uniform bolt loading is required. ABS provides bolt tensioning services for large and critical fasteners across oil & gas, power generation, wind energy, infrastructure and heavy engineering applications.