Basis weight is a measure of fiber, water, chemicals, and other additives in a standard amount of paper. A certain degree of variability in basis weight from one paper reel to another is acceptable, but excessive variation can lead to scrap and lost revenue for a mill. Basis weight influences paper properties including caliper, strength, and printability, so it is important to maintain tight basis weight control. Basis weight with low variation allows for process adjustments to reduce material usage, while maintaining product specifications

A linerboard mill, determined to improve process control, partnered with Precision Roll Grinders to service their calender rolls. Upon installation of PRG-ground rolls, the variation in the reel-to-reel basis weight dropped to 1.0 lbs/1000 ft2, a 33% reduction from previous levels. This improved control opened the door to savings from both reduced scrap rates and reduced raw materials usage, totaling $500k per year.

Precision Roll Grinders offers world-class roll grinding and servicing solutions. Our Applications Engineering team will collaborate with you to ensure your investment pays off. Contact your dedicated Account Manager today to discover how Precision Roll Grinders can work with you to improve your manufacturing process.