Roll Grinding Service – Roll Grinding Machine | Precision Roll ."We came to PRG as we were having considerable hazing problems and build-up on our number 3 paper machine's hot calender roll - spending hours every month cleaning the roll before changing paper grades. Since working with PRG, our efficiency has improved, our customers are seeing a more consistent and better.ton roll grinding machine customer case,ton roll grinding machine customer case,Case Study - Chiller Roll Grinding In Situ - FurmaniteOn Site Machining Project – Chiller Roll Grinding In Situ. Furmanite was hired to perform in situ machining on a chiller roll at a Midwest soap manufacturing plant. Chiller Rollers, known in the industry as . This client's 316 Stainless Steel roll measured 60” OD x 144” in length.The work scope included removing up to 0.015”.