
U-Section Polyurethane Hydraulic Seal

Our U-Section Polyurethane Hydraulic Seal is the preferred choice for high-pressure reciprocating applications in hydraulic cylinders and pumps. Manufactured from high-resilience polyurethane (PU), this U-Section Polyurethane Hydraulic Seal is designed to automatically compensate for wear by expanding against the sealing surface as internal pressure increases. We have optimized the lip geometry of our U-Section Polyurethane Hydraulic Seal to ensure zero-leakage performance, even under the fluctuating loads typical of industrial automation and heavy construction equipment.
In our Jinhua facility, we leverage 10 years of expertise to ensure the U-Section Polyurethane Hydraulic Seal possesses exceptional extrusion resistance and high tensile strength. This ensures the U-Section Polyurethane Hydraulic Seal can operate reliably in high-frequency environments without the risk of "shaving" or premature failure. Our 100% inspection process and adherence to 6S management guarantee that every U-Section Polyurethane Hydraulic Seal we ship provides the stability required for critical engineering tasks, from factory cylinders to massive hydraulic presses.
Specifications
|
Material |
High-Grade Polyurethane (PU) |
|
Hardness |
90-95 Shore A |
|
Pressure |
≤40 MPa |
|
Temp Range |
-35°C to +100°C |
|
Speed |
≤0.5 m/s |
Application Fields
- Hydraulic and Pneumatic Cylinders
- Forklifts and Material Handling Equipment
- Automated Industrial Presses
Customization & Capacity
We support OEM/ODM customization for specific hydraulic profiles. If you have a unique cross-section, our R&D team can design and prototype the mold in 20天. We offer tiered volume discounts.
Packaging & Shipping
Carefully organized in protective bags and heavy-duty cartons. We provide FOB delivery to the port, handling all origin-side logistics and documentation.
FAQ
Q: Is PU better than NBR for hydraulic use?
A: For high-pressure reciprocating motion, our PU seals offer significantly better wear and extrusion resistance.
Q: Do you offer different colors for PU seals?
A: Yes, we can accommodate color requests (Blue, Green, etc.) for large-volume orders.
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