Typical quotation response within 24 hours

Hydraulic Seals

PU U-Ring (Polyurethane)

Polyurethane (PU) U-rings offer superior wear resistance, tear strength, and extrusion resistance compared to rubber-based seals. They are ideal for high-pressure hydraulic applications where long service life is critical. The PU material provides excellent compatibility with hydraulic fluids and maintains flexibility across a wide temperature range. Widely used in heavy-duty hydraulic cylinders, excavators, and hydraulic presses.

Standard and custom dimensions Material options for process conditions OEM / ODM and distributor supply
Primary material Polyurethane (PU)
Need a non-standard version?

Dimensions, hardness, color, compound and packaging can be developed from your drawing or sample.

See our custom process

Reference specifications

Product data

Values below are a reference starting point. Confirm the final compound, dimensions and test requirements for your operating conditions.

MaterialPolyurethane (PU)
Hardness (Shore A)90-95
Temperature Range-30°C to +100°C
Pressure RangeUp to 60 MPa
SpeedUp to 0.5 m/s
StandardGB/T 2879 / ISO 5597
ApplicationHeavy-duty hydraulic cylinders, excavators, presses, cranes

Application fit

Typical industries and related products

Use these as a starting point. The right selection depends on the full operating environment.

Construction EquipmentIndustrial MachineryEnergy

Direct engineering request

Quote this product for your application.

Tell us what you are sealing and the environment it operates in. We will respond with the next practical step.

Project enquiry

Product enquiry

Add application details and any dimensional requirements.

We use your details only to respond to this enquiry.