Heavy Excavator Seal Solutions by Polypac

Heavy Excavator Seal Solutions by Polypac

Robust Seals Built for Heavy Excavation

Heavy Excavator Seal assemblies from Polypac are engineered to withstand extreme pressures, abrasive soils, and continuous cyclic loads. Designed for boom, arm, bucket cylinders and swing drives, our seals deliver reliable performance across construction, mining, and infrastructure projects. With decades of sealing expertise, Polypac ensures each Heavy Excavator Seal minimizes leakage and maximizes operational uptime.

Advanced Materials for Maximum Durability

We utilize a broad portfolio of sealing materials—bronze-filled PTFE, carbon-filled PTFE, graphite PTFE, MoS2-filled PTFE, glass-filled PTFE—and elastomers including NBR, FKM, silicone, EPDM, and FFKM. These combinations provide superior wear resistance, low friction, wide temperature tolerance and enhanced chemical compatibility, ensuring your Heavy Excavator Seal performs in abrasive, oily, wet, or high-temperature environments.

Custom Manufacturing & Large-Scale Capacity

Polypac’s custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space and industry‑leading equipment. Since 2008 we’ve expanded from filled PTFE seals to a full range of hydraulic and oil seals. We offer tailored solutions—custom profiles, compound formulation, and rapid prototyping—to meet unique excavator specifications and special working conditions.

Rigorous Testing and Research Partnerships

Our production lines are paired with comprehensive testing capabilities to validate wear life, extrusion resistance, and leakage under simulated field conditions. Polypac maintains long-term collaborations with universities and research institutes domestically and internationally to drive continuous improvement and ensure every Heavy Excavator Seal meets stringent quality standards.

Applications, Benefits and Service

Polypac seals reduce downtime, lower maintenance costs, and extend component life across heavy equipment fleets. We provide technical support for selection, installation guidance, and aftermarket service. For OEMs and aftermarket distributors, our seals offer consistency, traceability, and scalable supply.

Why Choose Polypac

Choose Polypac for proven Heavy Excavator Seal performance backed by advanced materials science, customized manufacturing, and global technical support. Contact us for consultation, sample runs, and material certifications to match your most demanding sealing challenges.