Issues with rollforming
Checklist
- Set the roll clearance to 30-50% of the sheet thickness.
- refer to the manual.
- refer to the manual.
- Do you have red springs in use for the upper front roll?
- reduce the spring tension and check the spring color.
- reduce the spring tension and check the spring color.
- Spring pressure too low:
- Tension the red/black springs with 3 – 3.5 revolutions.
- Check the roll clearance with a dial indicator.
- Tension the red/black springs with 3 – 3.5 revolutions.
- Rollformer motor too weak?
- Provide us with the nameplate and a photo of the motor.
- Provide us with the nameplate and a photo of the motor.
- Change the frequency inverter of the rollformer motor to 87Hz technique.
- This is the new standard of the CM X8.
- This is the new standard of the CM X8.
- Do you have a two-piece catching plate around the lower welding arm (Rollformer 420/540)?
- This helps to guide overrounded can bodies back into the Z-rail.
- This helps to guide overrounded can bodies back into the Z-rail.
- Have you mounted a inner mandrel in the canal (Rollformer 420/540)
- This also helps to guide overrounded can bodies back into the Z-rail.
- This also helps to guide overrounded can bodies back into the Z-rail.
- Catching canal:
Is the interior measurement of the two shells corresponding to each other?- If the interior diameter is too big, too open-rounded can bodies might not be correctly
conducted into the canal.
- If the interior diameter is too big, too open-rounded can bodies might not be correctly
- Catching canal:
Does the canal flap works properly?- The flap might even touch the can body, which is being welded. Only the a perfect adjusted
flap fulfills their purpose.
- The flap might even touch the can body, which is being welded. Only the a perfect adjusted
- Check the upper rollformer plate: Use a dial indicator to see, if there are back and forth or up
and down movements.