Main functions of oil wiper packingOil wiper packing is designed to seal the oil from the crankcase. By scraping away the excess oil generated along the piston rod by its back and forwards movements, the oil wiper rings prevent any accidental leakage outside the crankcase.

Castanet can supply all types of oil scraper rings, but recommends its A40 type which provides efficient scraping properties owing to their specially designed drain-off profile.
