Construction & Heavy Machinery

[ 건설기계 & 중장비 ]

Excavators, loaders, and cranes operate in harsh conditions where mud, dust, and moisture ingress combine with repeated high loads and shock. POLY STAR supplies hydraulic & pneumatic seals, oil seals, and wear rings engineered for reliable performance in these demanding environments.

Key Applications

Excavator boom/arm/bucket cylindersLoader lift cylindersCrane outriggersHydraulic pumps & motorsTravel reduction gears

Required Performance

1

Wear & Impact Resistance

Material design that minimizes wear under repeated high loads and shock.

2

Contaminant Exclusion

Blocks mud, dust, and moisture ingress to prevent internal oil contamination.

3

Wide Temperature Range

Stable performance from extreme cold to high heat.

4

Extended Service Life

Longer maintenance intervals that improve equipment uptime.

Have a construction or heavy machinery spec in mind?

Share your drawings or application conditions — our team will respond promptly.

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