Premium Sealing Solutions for Hydraulic Cylinders
Designed to deliver reliable performance in demanding hydraulic systems, our UPH Shaft-Hole Dual-Purpose Hydraulic Cylinder Seals are engineered to excel in both shaft and hole sealing applications. Whether you need to seal piston rods, cylinder barrels, or static joints, these versatile seals provide a cost-effective solution with exceptional durability.
Technical Specifications
| Parameter | NBR Version | FKM Version |
| Material | Nitrile Butadiene Rubber | Fluorocarbon Rubber |
| Operating Temperature | -40°C to +90°C | -20°C to +180°C |
| Maximum Pressure | Up to 20 MPa | Up to 30 MPa |
| Media Compatibility | Hydraulic oils, mineral oils, fuels | Hydraulic oils, chemicals, high-temperature fluids |
Key Features & Benefits
1. Shaft-Hole Dual-Purpose Design
Eliminate the need for separate seals for shaft and hole applications. Our UPH seals are precision-engineered to fit seamlessly in both dynamic (shaft movement) and static (hole connection) positions, simplifying inventory management and reducing installation errors.
2. High-Quality Material Options
NBR (Nitrile Butadiene Rubber): Ideal for standard hydraulic oils, mineral oils, and fuels. Offers excellent oil resistance, flexibility, and cost-effectiveness, with a temperature range of -40°C to 90°C
FKM (Fluorocarbon Rubber): Perfect for extreme conditions involving high temperatures, chemicals, or aggressive fluids. Boasts superior heat resistance (up to 180°C ) and resistance to oxidation, ozone, and most industrial solvents.
3. Reliable Sealing Performance
Prevents internal and external leakage of hydraulic fluids, ensuring system pressure stability.
Reduces friction and wear during reciprocating or rotating motion, extending the service life of hydraulic cylinders.
Resists extrusion under high pressure, thanks to optimized lip design and material toughness.
4. Easy Installation & Compatibility
Designed to fit standard cylinder grooves, these seals are compatible with most industrial hydraulic cylinders, including those used in construction machinery, manufacturing equipment, and agricultural vehicles.
Applications
Our UPH dual-purpose seals are widely used in:
- Construction machinery (excavators, loaders, cranes)
- Industrial hydraulic presses and (injection molding machines)
- Agricultural equipment (tractors, harvesters)
- Material handling systems
- Automotive hydraulic components
