Calender roll life

1. Use centricleaners to remove grit from the stock.
— especially important in mills using groundwood.
2. Grind rolls with careful attention to the proper procedure.
— ensure correct crown curve as well as correct crown.
— check that no corrugations are present after grinding.
3. Avoid “bumping” the stack.
— keep wads of paper out and keep stack clean.
4. Eliminate the use of doctors wherever possible.
5. When out of use for extended periods, remove machine calender rolls; wrap them with corrosion resistant grease and paper, and carefully store them .