Material compounding dictates the operational envelope of any fluid power component. For this 30 × 45 × 8 mm configuration, the primary dynamic sealing jacket is molded from high-modulus Polyurethane (PU). PU offers unparalleled abrasion and extrusion resistance, drastically outperforming traditional elastomers in harsh mineral oil environments. The integrated energizer is manufactured from standard Nitrile Butadiene Rubber (NBR). This dual-material synergy is critical: the PU withstands the severe mechanical friction and high-pressure extrusion forces, while the highly elastic NBR ensures the seal lips remain energized and highly responsive, preventing the detrimental “stick-slip” phenomenon.

A primary engineering advantage of the CFKS BA Type seal is its ability to deliver a predictable, low-friction life without requiring complex structural modifications to the cylinder. The seal is engineered for snap-in installation into closed or stepped rod glands. To maximize the operational lifespan and ensure the PU dynamic lip seats correctly without premature wear, the hydraulic rod must be polished to a surface finish of Ra 0.1 to 0.4 µm. Proper lubrication with clean system fluid during assembly is mandatory to prevent dry-running damage upon initial start-up. Once properly seated, its robust composite profile actively resists twisting and rolling, providing long-term reliability.