Installation Time
Even though more individual jackbolts must be tightened, installation is still fast in comparison to other methods. Because the torque required to tighten each small jackbolt is exponentially less than the torque required to tighten one large nut, it takes less time and effort overall to tighten the larger number of jackbolts. Also, no additional time is spent moving around heavy equipment to tighten each nut. Installation processes have been developed using air tools, which also greatly reduces installation time. Additionally, multiple workers can work on a joint simultaneously since the tooling required is inexpensive. Another common method, thermal tightening, can take a long time because the stud must be heated, and clamping force is not obtained and cannot be checked until it is cooled since it depends on shrinkage. If the stud is not at proper stretch, the heating process must be repeated.
Read more about this topic: Multi-jackbolt Tensioner
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