Engineering tools
Bolt tensioning
Bolt tensioning
calculator
Enter the bolt, target preload and grip length; we calculate the tensioning load and pump pressure including load loss.
Pump pressure
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- Residual load
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- LTF
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- Tensioning load
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- Yield at tensioning
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- Stress area
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- Tools needed
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Suitable tensioners
No catalogue tensioner fits this bolt and load. Enter the tool area above if you know it, or send us the application form.
Fill in the application formLoad transfer factor LTF = 1.01 + diameter / grip length (minimum 1.10). The result is an approximation; where the residual load must be known exactly, measure bolt elongation before and after tensioning.