Pneumatic torque wrenches and proper bridge bolt load

For many years the tightening and torquing of bridge bolts traditionally have been done with impact guns being checked on a Skidmore/Calibore bolt load testing device for verification.   While this has always been acceptable in the past, many engineering and inspection firms are now requiring calibrated shut off tools to be used in place of impact guns. The Skidmore/Calibore used in conjunction with an impact gun verifies that that tool has the capacity to go to the required bolt load. The issue with this method, is that it’s operator dependent on the time the tool operator continues to hold down the trigger on the impact. There is no shut off when the correct bolt load is achieved. Therefore, the tool operator could over or under apply the proper bolt load required.

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Torque wrench uses in the renewable energy industry

The renewable energy industry is on the rise, registering an impressive 8.9% growth between 2016 and 2020. According to Business Wire, the global industry raked $692 billion in revenue in 2020.

Considering the average wind turbine uses about 25,000 fasteners, including at least 6,000 bolts, that means you need robust and reliable tools to get all that work done. That’s where torque wrenches come in.

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Hydraulic Torque Wrenches: Proper Operational and Safety Practices

Hydraulic torque wrenches are unique tools that produce significant amounts of torque output when connected to the required operating hydraulic pump.

10 tips focused on operational safety when using this system:

  • Wear proper P.P.E, gloves and safety glasses specifically are a must.
  • Focus on running the equipment, remove all distractions when using equipment.
  • Ensure the area has good lighting or bring in portable lights.
  • Do a pre-job brief with others involved with the work at hand.
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Best Safety Practices for Tower Crane Bolt Torque

Tower cranes perform important work during construction projects and other tasks that require heavy lifting. They can rise hundreds of feet above the ground while their booms can extend more than 200 feet. Their lifting capacities vary with size, but the most powerful tower cranes can lift up 20 tons.

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