We worked with large roller size on glass industry. PVA Sponge is applied for absorbing water and make surface dry. Original machine come with metal shaft and sponge. Once sponge end of life, factory send shaft back for remove and coat sponge. This take high delivery cost and time.
Our product provide solution of sponge roller with PVC pipe. We don’t need to carry metal shaft for repair.
Customer want to change sponge, just take old one and put new PVA sponge roller with PVC pipe immediately. Save down time and cost. Cost of PVA sponge is cheap for have stock in case of emergency. User don’t need to stock metal shaft.