For the 20*6*12 model, we utilize a premium NBR (Nitrile Butadiene Rubber) compound with a high shore hardness (typically 70-90 Shore A). This material is selected for its superior compression set resistance and mechanical toughness. NBR is the industrial standard for general-purpose hydraulics due to its stable performance in temperatures ranging from -30°C to +100°C. It provides a durable barrier against wear and abrasion, ensuring that the seal maintains its structural integrity even after millions of cycles in standard hydraulic fluids.

The compact 20*6*12 mm dimensions allow for streamlined piston designs. During installation, it is critical to ensure that the cylinder bore is free of scoring or honing burrs, which can compromise the NBR surface. We recommend a “snap-in” assembly approach into closed grooves, provided the lead-in chamfers are polished to prevent lip clipping. Regular maintenance should include monitoring for fluid contamination; while NBR is resilient, abrasive particles in the hydraulic oil can act as an unintended grinding paste, shortening the seal’s effective lifespan.