Split Belts & Belt Slippage

Reasons for Belt Slippage

1. The belt tension is too low.
2. The contact roll is worn excessively.
3. Shock load on the belt due to a big variation in workpiece thickness.
4. Dirt or dust between belt and contact roll.
5. A plain steel contact roll not providing enough traction for the belt. Try a serrated roll or knurl the surface of the roll.

Reasons for Split Belts

1. The belt is too flexible of application.
2. Burr on the contact roll or platen.
3. Contamination on the workpiece (nail, staple, etc.)
4. Excessive depth of cut or sanding pressure.
5. Contact roll and idler roll are not parallel.
6. The abrasive material is not heavy enough for application.
7. Variation in workpiece thickness.
8. Sanding in only one area of the belt. Stagger the workpieces across the width of a wide belt.
9. Worn contact roll.

Back to Abrasive Library