Polypac Heavy Excavator Seal — Reliable Hydraulic Sealing Solution

Product Overview

Polypac Heavy Excavator Seal is a robust hydraulic and oil seal designed specifically for heavy excavators and earthmoving equipment. Engineered for high pressure, heavy load, and dirty environments, this seal reduces leakage, extends component life, and keeps your machinery working longer with less maintenance.

Key Features

• Exceptional durability under high pressure and impact.
• Excellent resistance to abrasion, oil, and contaminants.
• Wide temperature range for hot and cold climates.
• Low friction design to improve efficiency and reduce wear.
• Available in standard and custom sizes for OEM and retrofit needs.

Materials and Compatibility

Polypac uses advanced sealing materials including filled PTFE compounds (bronze, carbon, graphite, MoS₂, glass) and elastomers such as NBR, FKM, silicone, EPDM, and FFKM. This range ensures compatibility with common hydraulic fluids, greases, and harsh field conditions. We select materials to balance wear resistance, flexibility, and chemical compatibility for each application.

Quality and Testing

Manufactured in our modern facility covering over 10,000 m² with advanced production and testing equipment, each seal undergoes strict inspection. Polypac collaborates with universities and research institutes to validate performance. Our testing covers pressure endurance, abrasion, temperature cycling, and dimensional accuracy to meet heavy-duty field demands.

Why Choose Polypac

Polypac has specialized in seals since 2008, starting with filled PTFE seals and expanding to a full line of O-rings and rubber seals. We offer tailored sealing solutions for special working conditions and provide reliable technical support. Customers trust Polypac for consistent quality, fast delivery, and professional customization.

Applications

Ideal for excavator hydraulic cylinders, swing motors, boom and arm joints, and other heavy machinery where robust sealing is critical. Suitable for construction, mining, and demolition equipment.

Choose Polypac Heavy Excavator Seals for dependable performance, fewer repairs, and extended equipment life. Contact us for custom dimensions, material selection, and fast sample delivery.