James Walker RotaBolt

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August 28, 2008
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The science of bolted joint reliability is dependent upon three factors joint design, bolt quality and design tension on installation.

We deliver technology driven assurance that guarantees installation to a pre-set tension and continues to accurately measure the maintained tension across the bolted joint.


* Standard bolts are converted by inserting the RotaBolt® indicator which incorporates an integral gauge pin and grease filled control cap. 

* The unique RotaBolt® design incorporates internal air gap technology and 100% load test calibration. The consistency of the design criteria guarantees an indicator accuracy of +/- 5% throughout the life of the bolt . 

* Before installation the Rotacap spins freely. As the bolt is tightened, it stretches elastically and the Rotacap locks at the bolt's specified, load test calibrated tension value



* As soon as any tension is lost across the bolted joint, the Rotacap immediately rotates freely to give a clear indication of tension loss.

 




James Walker Group