Excavator oil cylinder dustproof seals DKBI SRD BLUE EXCAVATOR CYLINDER DUST SEAL DKBI Design description: The dust-proof lipof the polyurethane material can move sidewaysalong with the piston rod, causing serious precipitation of pollutants, which is ideal for high-pollutionconditions. The polyurethane dust lipis precisely trimmed to allow the phone to pass through the media of the piston rod seal, and the specially designed dust lip improves the sealing performance ofthe rod. DKBI SRD is a double-lip metal skeleton dust ring. This is a seal that prevents external dust from entering in order to protect the equipment and maintain the function of the seal This is a double lip seal to prevent oil scraping and prevent dust from entering It is firmlybonded by a polyurethane dust ring and a restraint of nitriding and rust prevention.