Rubber Grade DIN-K (Flame Retardant)
Standard cover grades in Natural and SBR rubber includes the following:
“N” grade – Predominantly SBR (synthetic) rubber; has good all-purpose properties.
“M” grade – Natural rubber polymer; excellent resistance to cut and tear.
“E” grade – Polymer blend and specially compounded to have antistatic properties.
“SAR” grade – Polymer blend with excellent abrasion resistance.
“XCG” grade – Polymer blend with superior resistance to cut and gouge.
“FRAS” grade – Fire resistance and anti static in both SBR and neoprene based compounds for underground applications.
High wear resistance combined with a low coefficient of friction is the ideal combination for a skirting material. Polyurethane produced the best results in the laboratory and field tests. Though the abrasive test results show polyurethane is 3-4 times more abrasive resistant than SBR rubber, once the friction factor was added in a real world scenario we concluded that the polyurethane lasted 6-10 times longer than SBR rubber. This difference in wear rates is due to the polyurethanes very low friction value. The abrasive resistance test ASTM D1630 simulates abrasion by means of grit and not the contact between the conveyor belts.
Reinforcing Options include polyester/nylon, nylon/nylon, steel cord and PVC solid woven. The fabric reinforced belts can be woven to various strengths and in various configurations such as cross weave, monoply tyre cord, and crow’s foot weave (Twill weave). Test certificates can be provided to verify actual belt strengths.