Tips for Better Life of Rolls:  

• Ensure sufficient quantity of high-grade coolant to prevent the rolls from getting over heated.  

• Arrange proper filtration for the coolant.

• Never put the roll immediately on grinder after removing from the mill. It requires to be cooled properly before grinding.

• After removal from the mill, the roll is in a hot condition. In that condition, do not keep the roll on its barrel but instead on its journals. Also ensure free air-flow around the barrel for fast and effective cooling.

• Thermal shocks can be easily avoided by warming up the rolls before putting them into the mill.

• In case of skidding, please grind the barrel sufficiently to remove any possible surface cracks. Rolls should be checked for cracks by acid etching before re-use.

• Stress relieving of rolls is recommended after every re-grinding for four hours in an oil bath at 180 0 C for hardness upto 62 HRC and for 6 hours at 160 0 C for those above 62 HRC.

• Remove at least 0.25mm material while re-grinding the rolls. This normally removes the work hardened layer and minor surface cracks.

• Our team of experts is always ready to suggest you the remedies in case of any operational problems of the rolls. email us on – marketing@supremerolls.com