World’s First Integrated Bolted Joint Tension Control System

The two global leaders in tightening control and bolted joint technology, Hytorc and James Walker RotaBolt, have launched the world’s first fully integrated tension control system for assuring bolted joints – Integrity. Described as foolproof, the new system quickly and easily installs its fasteners at the correct design tension without even having to remove the tool from the bolt during the process. Together the unique tool and fastener ensure that the correct tension is achieved every time and then fully maintained throughout the life of the bolted joint.

Failures of critical bolted joints can be disastrous and over 90% of all failures can be attributed to insufficient bolt tension at installation. The two companies have developed Integrity as an integrated system with the science of tension control at its heart. It features the world’s first tightening tool to incorporate the technology used during the production of RotaBolt tension control fasteners within its specially developed checking device. The tool automatically senses when the special cap has locked on top of the fastener and then immediately cuts off the hydraulic tightening power.

“Integrity is set to become the industry standard wherever reliability and safety are of paramount importance in bolted joints,” commented Rod Corbett from James Walker RotaBolt. “It is optimum bolt tightening - simple, accurate, fast and foolproof.”

The new Hytorc tool with its accuracy and capability, coupled with RotaBolt’s tension control and 100% load test calibration, has resulted in the most advanced technology-led system in the world. It delivers the speed and flexibility of fully integrated hydraulic torque tightening, combined with tension control accuracy to ± 5%.

As a complete system, it quickly and simply installs to the correct design tension and then monitors and maintains that tension throughout the life of the bolted joint through the control technology incorporated in each RotaBolt.

07 September 2009

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