Hydraulic Seals
Hydraulic sealing expert-level solution

Hydraulic seals are core components of hydraulic systems in various mechanical equipment, playing a crucial role in ensuring the stable operation of the system. Their core function is to seal the hydraulic medium within the system, eliminating the risk of leakage—a function that directly determines the operating efficiency and performance stability of the hydraulic system. High-quality hydraulic seals can withstand high-pressure impacts, extreme temperature fluctuations, and corrosive media, and are therefore widely used in core fields such as industrial manufacturing, automotive engineering, and aerospace, becoming essential basic components for the reliable operation of equipment.
Advanced formulation materials suitable for multiple purposes
KODA hydraulic seals are made from a wide selection of high-quality materials to precisely meet the needs of different industrial hydraulic applications:
Nitrile butadiene rubber (NBR): Oil and fuel resistant, wide range of applications, and excellent cost-performance ratio.
Polyurethane (URE): Pressure and wear resistant, specifically designed for high-pressure and high-wear conditions.
Fluororubber (FKM): High-temperature resistant and corrosion resistant, easily handling harsh environments.
Carboxylated nitrile butadiene rubber (XNBR): Strong and durable, meeting ultra-high durability hydraulic requirements.
Each material boasts core advantages such as high temperature resistance, corrosion resistance, and high durability, making it fully adaptable to various fluid media and operating conditions, thus safeguarding the sealing of equipment.
Choose appropriate seals
The key to efficient operation of a hydraulic system lies in selecting the right seals for the specific operating conditions. Fluid type, temperature, pressure, and dynamic/static characteristics directly determine the sealing effect and equipment stability.
KODA’s professional team provides comprehensive support, precisely matching you with the ideal hydraulic seals to ensure long-term stable operation of your equipment.
U-shaped cup sealing ring

KODA offers a full range of multi-purpose U-rings, providing superior sealing solutions for various industrial applications. The product portfolio covers two core categories: pre-compressed U-rings designed for high-pressure dynamic systems, and standard U-rings suitable for both static and dynamic sealing. With its unique U-shaped cross-section structure, the products effectively prevent media leakage while adapting to diverse pressure and temperature conditions. Materials include polyurethane and nitrile rubber, with five exclusive cross-sectional profiles: S, SB, D, DB, and DSU, each tailored to specific application requirements.
For detailed specifications and to accurately match the U-ring to your operating conditions, please visit our dedicated U-ring product page.
T-Seals

KODA T-type seals are high-performance sealing solutions specifically designed for high-pressure industrial applications. Their unique T-shaped cross-section optimizes pressure distribution and enhances seal stability, performing particularly well in high-pressure systems with fluctuating pressure. The product utilizes a composite design of an elastomer body and a rigid plastic support ring, effectively resisting the risks of gap extrusion and deformation caused by extreme pressure differentials. These seals are suitable for piston rod and piston sealing and can be directly matched with standard O-ring grooves, easily upgrading and replacing traditional sealing solutions.
To learn how T-type seals can help improve equipment operating efficiency, please visit our dedicated T-type seal product page.
D-Rings

KODA D-rings, with their core advantages of high strength, versatility, and reliability, are widely used in various industrial fields. Their cross-section resembles the letter "D," with a flat inner surface and a rounded outer surface, providing a stable sealing contact point while offering multiple performance advantages. The unique structural design endows D-rings with excellent wear resistance, tear resistance, scratch resistance, and superior resistance to harsh environments. Particularly noteworthy is their superior stability, torsional resistance, and stress resistance compared to traditional O-rings, making them particularly outstanding in dynamic or rotating sealing conditions.
For detailed technical parameters and application solutions of D-rings, please visit our dedicated D-ring product page.
Your Trusted Partner for Premium Sealing Solutions
At KODA, we pride ourselves on being your trusted partner for sealing solutions. We offer a full range of high-quality hydraulic seals, committed to providing products that exceed industry standards. Leveraging our deep expertise in hydraulic sealing technology, we ensure that every product combines precise fit, durability, and high-efficiency operation.
For more product information, professional selection assistance, or to discuss customized needs, please feel free to call +86 18730921709 or fill out the product inquiry form on this page. Our sales team will respond to you within one business day.