Bidirectional Piston Seal Kit — Polypac Hydraulic Seal Solutions

Bidirectional Piston Seal Kit — Reliable Sealing from Polypac

Product Overview

Polypac's Bidirectional Piston Seal Kit is engineered for hydraulic cylinders that require consistent sealing in both extension and retraction. Combining advanced polymers and precision molding, this kit minimizes leakage, reduces stick-slip, and extends cylinder life. Ideal for industrial, mobile, and specialized equipment, the kit supports pressures and temperatures across a wide operating window.

Key Features & Materials

Our Bidirectional Piston Seal Kit is available in multiple formulations — including filled PTFE variants (bronze, carbon, graphite, MoS₂, glass) and elastomers like NBR, FKM, EPDM, silicone, and FFKM — to match friction, wear, and chemical-resistance requirements. Features include low friction lips, reinforced backup rings for extrusion protection, and tight dimensional tolerances for smooth piston guidance and minimal leakage.

Performance & Applications

Designed for high-cycle and high-pressure environments, the kit excels in construction machinery, agricultural equipment, mining hydraulics, and precision industrial actuators. The bidirectional sealing geometry ensures symmetrical performance under alternating loads, while material options let you balance abrasion resistance, low-temperature flexibility, and fluid compatibility.

Customization & Testing

Polypac specializes in tailored solutions: custom cross-sections, compound selection, and tight tolerances to suit special working conditions. Our factory — over 10,000 m² with 8,000 m² of production space — uses advanced manufacturing and testing equipment. We collaborate with universities and research institutes to validate seal life, friction coefficients, and leakage rates under simulated field conditions.

Quality Assurance & Why Choose Polypac

Since 2008, Polypac has been a leader in seal development, starting with filled PTFE and expanding to comprehensive O-ring and seal portfolios. Choosing our Bidirectional Piston Seal Kit means partnering with an award-winning manufacturer committed to material R&D, strict QC, and responsive customization. For reliable, long-life hydraulic sealing, trust Polypac’s expertise and global technical collaboration.