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  • U-Cup Hydraulic Seals High-Pressure Leak Protection - u-cup hydraulic seals - Buy Online at MAX HYDRAULICS

U-Cup Hydraulic Seals High-Pressure Leak Protection

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These u-cup hydraulic seals are designed for reliable sealing in hydraulic cylinders, preventing fluid leakage under high pressure and extending equipment life. Ideal for OEMs, maintenance teams, repair workshops and industrial users, they deliver consistent performance in both static and dynamic applications. Made from durable materials, they withstand demanding environments, reducing downtime, energy loss and maintenance costs. Available in multiple sizes to suit various cylinder designs, they help improve efficiency, safety and system responsiveness. Whether you are replacing worn seals or building new machinery, these seals offer a cost-effective, long-lasting sealing solution for modern hydraulic systems. For custom sizes and bulk orders, you can reach our team at 79 GANGAI STREET NEDUNCHALAI NAGAR SURAMANGALAM SALEM.

Prevents hydraulic fluid leakage under high pressure
Improves cylinder efficiency and smooth movement
Reduces downtime and maintenance frequency
Compatible with various hydraulic oils and fluids
Suitable for OEM, repair and maintenance use
Available in multiple sizes for diverse cylinders

Identify the correct size u-cup hydraulic seal for your cylinder. Depressurize the system and safely disassemble the cylinder according to manufacturer guidelines. Remove the worn seal, clean the groove and sealing surfaces thoroughly, then install the new seal without twisting. Reassemble, slowly pressurize, and check for leaks during initial operation.

U-cup hydraulic seals are used to prevent fluid leakage in hydraulic cylinders and rams. Their U-shaped profile creates a tight, pressure-activated seal between the piston or rod and cylinder bore, helping maintain system pressure, improve efficiency, and extend the life of hydraulic components in industrial and mobile equipment.

To choose the correct u-cup hydraulic seal size, measure the rod or piston diameter, the groove diameter, and the groove width in your cylinder. Always compare these measurements with the seal’s technical specifications. If available, refer to the equipment manual or part number, or consult the merchant with your dimensions for guidance.

U-cup hydraulic seals are commonly made from materials like NBR (nitrile rubber), polyurethane, FKM (Viton), or PTFE blends. The best choice depends on operating pressure, temperature, and compatible hydraulic fluids. Polyurethane suits high-pressure, abrasive environments, while FKM and PTFE handle higher temperatures and more aggressive oils or chemicals.

The service life of u-cup hydraulic seals depends on operating pressure, temperature, fluid cleanliness, and installation quality. In well-maintained systems with proper filtration and correct seal selection, they may last several years. Regular inspection for leaks, wear, or hardening helps you replace seals before failure and avoid unplanned downtime.

You can replace u-cup hydraulic seals yourself if you have basic mechanical skills and follow proper safety procedures. Depressurize the system, carefully disassemble the cylinder, and use appropriate tools to avoid damaging metal surfaces. Always match seal size and material to specifications. When unsure, consult a professional technician or the merchant.
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