Double Acting Piston Seal — Polypac Hydraulic Seal Solutions

Double Acting Piston Seal — Reliable Hydraulic Sealing by Polypac

Overview

Polypac's Double Acting Piston Seal is engineered to seal a piston in both directions of travel, providing dependable pressure containment and minimized leakage in hydraulic cylinders. Designed for industrial, mobile, and offshore applications, our seals combine low friction, high wear resistance, and consistent performance across a broad pressure and temperature range.

Materials & Construction

Our Double Acting Piston Seal family uses advanced materials including filled PTFE (bronze, carbon, graphite, MoS₂, glass-filled) and elastomers such as NBR, FKM, EPDM, silicone, and FFKM. Polypac leverages proprietary compound formulations and precision molding to optimize resilience, extrusion resistance, and chemical compatibility tailored to each working condition.

Performance & Application

Built for high-pressure hydraulics, Polypac Double Acting Piston Seals deliver superior dynamic sealing for cylinders, presses, and actuators. Typical benefits include low breakaway torque, extended service life, and stable sealing under varying speeds and temperatures, making them ideal for construction equipment, industrial machinery, and marine systems.

Customization & Quality Control

With a 10,000+ m² facility and industry-leading production and testing equipment, Polypac provides custom sizes, compound blends, and integrated O-ring solutions. Since 2008, we collaborate with universities and research institutes to validate material performance and ensure every Double Acting Piston Seal meets stringent quality and endurance standards.

Installation & Maintenance

Polypac Double Acting Piston Seals are designed for straightforward installation with clear tolerances and recommended lubrication regimes. We supply technical datasheets and application support to reduce downtime and simplify maintenance cycles, ensuring reliable, repeatable sealing performance in the field.

Why Choose Polypac

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier specializing in seal production, sealing material development, and customized sealing solutions for special working conditions. From prototype to volume production, our commitment to R&D, precision manufacturing, and customer service makes Polypac the trusted partner for Double Acting Piston Seal solutions worldwide.