Paper machine calender stack rolls are sent out for service with surface wear and profile deviation. The greater the wear and profile deviation, the greater the roll grinding stock removal required to restore proper geometry and surface finish. Increased roll grinding stock removal accelerates roll consumption and reduced overall service life.

By precision grinding calender rolls to tighter tolerances and more accurate initial profiles, rolls wear more evenly and maintain their geometry longer. This not only extends roll life and reduces maintenance costs but also contributes to more stable sheet quality and overall operational efficiency.

A paper mill chose to partner with Precision Roll Grinders to improve roll tolerances and entend the life of their calender rolls. This resulted in $60,000 in annual roll maintenance savings.

In addition to realizing an extended run life from 6 months to 12 months, doubling the time between regrinds, Precision Roll grinders also saw less incoming profile deviation on each subsequnt grind. This allowed for less stock removal at each regrind, extending the oveall service life of the rolls!

Contact Precision Roll Grinders to learn more!