SCHELKMANN – GLOBAL TECHNOLOGY LEADER IN OTR TYRE RETREADINGSchelkmann is considered the worldwide technology leader in OTR tire retreading. The patented Schelkmann Precured Retreading System (SPR-System) provides totally integrated solutions to the mining industry with regards to high performance tires for extremely harsh off-road applications. Schelkmann's innovative retreading technology, unlike other ways of recapping, guarantees similar hours / mileage performance and tire-safety with Schelkmann tires as with new, premium brand tires.