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Troubleshooting Rubber Roller Issues: Causes and Fixes
Even high-quality rubber rollers encounter issues over time. Recognizing common problems and their solutions minimizes downtime and costs:
Cracking & Checking:
Cause: Ozone attack, UV exposure, excessive heat aging, or using the wrong compound (e.g., NBR outdoors).
Solution: Use ozone-resistant materials (EPDM), proper storage away from UV/heat, ensure correct compound selection.
Swelling & Softening:
Cause: Chemical incompatibility (solvents, oils, plasticizers migrating from materials).
Solution: Select chemically resistant rubber (e.g., FKM/Viton for harsh solvents, EPDM for steam/alkalis). Verify compatibility charts.
Abrasion & Wear:
Cause: Friction against abrasive materials, misalignment causing edge wear, insufficient hardness.
Solution: Use abrasion-resistant compounds (Polyurethane), ensure precise alignment, select appropriate hardness, implement regular cleaning.
Delamination & Bond Failure:
Cause: Poor adhesive bonding, core corrosion (especially under rubber), excessive load/speed, impact damage.
Solution: Ensure high-quality bonding processes during manufacturing, use corrosion-resistant cores/treatments, avoid overloading, handle rollers carefully.
Glazing & Hardening:
Cause: Excessive heat buildup, prolonged exposure to high pressure, oxidation.
Solution: Improve cooling/ventilation, use heat-resistant compounds (Silicone, EPDM), reduce pressure if possible, schedule regular maintenance/inspection.
Flat Spots & Deformation:
Cause: Improper storage (resting on one spot under load), prolonged static pressure when not rotating.
Solution: Store rollers vertically on end caps or horizontally on supportive racks, rotate stored rollers periodically.
Proactive maintenance, correct storage, and using rollers within their design specifications significantly extend service life.
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