Contact Rollers-3

In today's wide belt polishing plants, YLFs Roller has found the key technical factors for contact rollers - including durometer, land-groove ratio, and rubber compound selection - are confusing for even to the most experienced plant personnel.
We can manufacture a new contact roll for you as a complete core and cover, or we can recover your existing contact rolls. Either way, you'll benefit from our expertise. Improper selection of contact roll specifications can cost you in production speed, abrasive costs, undesirable stock removal, and poor finishes.In today's wide belt polishing plants, YLFs Roller has found the key technical factors for contact rollers - including durometer, land-groove ratio, and rubber compound selection - are confusing for even to the most experienced plant personnel.
We can manufacture a new contact roll for you as a complete core and cover, or we can recover your existing contact rolls. Either way, you'll benefit from our expertise. Improper selection of contact roll specifications can cost you in production speed, abrasive costs, undesirable stock removal, and poor finishes.
Durometer: Rollcover Hardness
SOFT DUROMETERS - (15-50 Shore A) Used when aggressive stock removal is not of primary concern, but even processing of irregular surfaces is the goal. For fine finsihes, softer rollcovers are best.
MEDIUM DUROMETERS - (60-80 Shore A) These rollcovers achieve a median between hard and soft durometers. The roller will tend to achieve good stock removal while still conforming to work surface contours.
HARD DUROMETERS - (85-95 Shore A) Hard rollcovers are used for aggressive stock removal or when precision tolerances are critical.
Groove Angle & Direction:
For belt grinding operations, grooves should run opposed to the belt splice, which prevents the belt splice from getting stuck in the groove land.
60 DEGREE GROOVE: The maximum practical angle, it is used for heavy stock removal,where finish marks not a concern. Belt life is reduced, but cut rates are rapid.
45 DEGREE GROOVE: The most common groove angle, it gives good stock removal rates and a suitable finish.
30 DEGREE GROOVE: Used where a better finish is needed, it is less likely to generate marks and delivers reasonable stock removal rates.
PLAIN FACED (NO GROOVES): Almost exclusively for polishing & fine finishing, with minimal stock removal.