A PU Piston Rod Seal is a vital component in hydraulic systems, particularly in equipment like hydraulic cylinders. Made from Polyurethane (PU), a highly durable and wear-resistant material, these seals are designed to prevent leakage of hydraulic fluids while ensuring smooth movement of the piston rod within the cylinder. They provide a tight seal between the piston rod and cylinder, effectively preventing contaminants from entering the system and ensuring the hydraulic pressure is maintained.