PU Rod Seal

Most of the hydraulic cinder seals are PU seals. Polyurethane (PU) is a special material that offers the resilience of rubber combined with toughness and durableness. It allows people to substitute rubber, plastic, and metal with PU. Polyurethane can reduce factory maintenance and OEM product cost. Hydraulic PU seals have better abrasion and tear resistance than rubbers, and offer higher load-bearing capacity.