Quote:
Originally Posted by IROC
We can't use hydraulics unless they are water-based and we wouldn't want to use an impact wrench. We have electric power and essentially a shop air supply.
The wrenches we use now (Norbar wrenches) require as little pressure drop as possible between the air supply and the wrench. In our application we have a solenoid valve, a ball valve, two check valves, two Staubli quick disconnects, 15 feet of stainless flex hose and assorted pipe and Swagelok fittings so our pressure drops are large.
Also running the wrenches dry degrade them over time (we can't lubricate them due to a prohibition on oil/lubricants in the cell). Once the wrench is in the cell, we can't calibrate it.
Frustrating problem.
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Then it sounds like bolt heaters will do the job.