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Truss Profile Bowing

Truss Profile is Bowing when extruded from roll case

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Bowing up   Bowing down

Explanation

 In the Rollforming process different parts of the profile are “stretched” more than others causing the material to bow as its extruded out of the machine.

Possible resolution

 Minimal bowing can be rectified using either station 2 or 9 by increasing or decreasing pressure using the gauges to ensure even adjustment.

More prominent bowing can be rectified at Station 7. Once again using the gauges to ensure even adjustment.