01 September 2009
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World’s First Integrated Bolted Joint Tension Control System

Failures of critical bolted joints can be disastrous and over 90% of all failures can be attributed to insufficient bolt tension at installation.

Hytorc and James Walker RotaBolt have joined forces to launch what they describe as the world's first fully integrated tension control system for assuring bolted joints. Described as fool-proof, the Integrity 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 tool and fastener ensure that the correct tension is achieved every time and then fully maintained throughout the life of the bolted joint.

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.

The new Hytorc tool with its accuracy and capability, coupled with RotaBolt's tension control and 100% load test calibration delivers the speed and flexibility of fully integrated hydraulic torque tightening, combined with tension control accuracy to +/- 5%.

Author
Paul Gay

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