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- Overview
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The u-cup seal is a widely used sealing element in hydraulic and pneumatic systems, recognized for its simple geometry and effective sealing capability under pressure. Its U-shaped profile enables a balanced combination of elasticity and pressure-activated sealing, making it suitable for both dynamic and static applications.
Design Overview
· U-Shaped Cross Section: Designed to deform under pressure, enhancing contact against sealing surfaces
· Directional Versatility: Available in rod or piston configurations depending on system requirements
· Compact Structure: Allows installation in small gland spaces without sacrificing performance
Material Options
· Polyurethane (PU): Known for wear resistance and good sealing under moderate pressure
· FKM: Offered for higher temperature or chemically demanding environments
Application Fields
· Hydraulic cylinders (mobile and industrial)
· Pneumatic actuators
· Injection molding equipment
· Lifting and handling systems
NQKSF U-Cup Seals Advantages
· Responsive sealing under low and high pressure conditions
· Low friction with minimal stick-slip effect
· Compatible with a variety of hydraulic fluids
· Easily replaceable with standard groove dimensions
U-Cup seals selection depends on the operating conditions, fluid type, and motion direction. Technical support is available to help select the most appropriate design and compound.
