Benefits of Solid Chilled Rolls. by Sheila on March 20, 2012 1260 Flaking roll A major decision when a farmer is considering to purchase a Roller mill is whether to opt for Solid Chilled Rolls (S.C.R) or hollow Rolls. Wakely Engineering LTD was established in 1979 and have consistently used S.C.R in all there mills, This is due to a number of factors. Roll characteristics. S.C.R are manufactured from a high grade cast iron,utilizing the double pour Centrifugal cast technique. Hollow rolls are generally manufactured from Mild steel. S.C.R Results in. Long operating  lifetime & Roll surface will not be marked/chipped by stones or mild steel bolts. More maintenance for hollow rolls,Roll replacement, Re fluting, When under pressure hollow rolls tend to flex in the centre and results in an unsatisfactory crush, A consistent product is not possible using hollow rolls. Roll Hardness. Some manufacturers fabricate their rolls from 12-30mm [...]