Piston Seals or Piston Rings are used in hydraulic cylinders for fluid sealing. They are internal to the cylinder head and seal against the cylinder bore, preventing fluid from flowing across the cylinder head. This allows pressure build up on one side of the piston, making the cylinder extend or retract.
Yimai Sealing Solutions offers a wide range of piston seals that provide the ultimate in leakage control. Our proprietary piston seal designs meet users’ requirements for low friction, compact form and simple installation.
A hydraulic piston seal or piston ring is usually manufactured in our Polytetrafluoroethylene (PTFE) based material or polyurethane. Specially engineered for fluid power applications, these compounds provide exceptional resistance to wear and outstanding extrusion properties. Compatible with virtually all media, they demonstrate unrivalled performance at extremes of temperature.
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The M2-type seal is designed for reciprocating applications and is suitable for both external and internal circumferential sealing, making it ideal for harsh environments and special media. Key Features: Suitable for both reciprocating and rotating movements Compatible with a wide range of liquids and chemicals Low friction coefficient for efficient performance No stick-slip effect, ensuring smooth and precise operation Excellent corrosion resistance and dimensional stability Tolerates rapid temperature fluctuations Safe for use with food and pharmaceutical fluids, preventing contamination Can be sterilized for hygienic applications Offers an unlimited shelf life. -
Seals efficiently provide both guiding and sealing functions within a compact space. They are compatible with mineral oils such as HFA, HFB, and HFC fire-resistant hydraulic fluids (maximum operating temperature of 60°C). The seals are designed for easy installation with a straightforward, integrated piston structure. The unique geometry of the NBR sealing element ensures distortion-free installation within the groove. -
Each component of the combined seal ring delivers outstanding performance, featuring: Low friction Minimal wear rate Two seal rings to prevent extrusion Initial interference designed to maintain seal integrity at low pressure Stable rectangular geometry for effective sealing -
Offers excellent abrasion resistance Highly resistant to extrusion and deformation Provides superior impact resistance Minimal compression set Designed for easy installation in the most demanding operating conditions. -
Engineered for dual-sided piston pressure, the slip ring features pressure guide grooves on both sides, allowing it to handle rapid pressure fluctuations effectively. Key Features:- Exceptional stability under high pressure and demanding conditions
- Excellent thermal conductivity for optimal performance
- Superior resistance to extrusion
- High wear resistance for extended service life
- Low friction, ensuring smooth operation without hydraulic stick-slip.
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This seal pack is designed for demanding operating conditions and is commonly used as maintenance spare parts for older equipment. The V-type sealing group, EK type, and EKV configuration can be applied to pistons with pressure on one side or installed "back-to-back" for systems with pressure on both sides of the piston. Key Features: Withstands extreme operating conditions Long service life Customizable to fit specific equipment requirements Performs reliably even on surfaces with poor quality for a limited time Resistant to contamination in hydraulic fluids May experience occasional leakage or friction due to structural design in certain conditions.