Rubber Lip Seals

MGV provides custom design, production, and molding of rubber lip seals to meet specific application needs.

Lip Seals for Various Uses

Rubber lip seals are used in a range of applications, typically mounted on pistons and cylinders to maintain the appropriate pressure within chambers, while preventing external contamination. To select the right rubber compound and design the ideal lip seal, factors such as operating temperature, maximum pressure, fluid type, usage conditions (static or dynamic), and the industry sector must be considered.

Choose the Correct Compound

Choosing the appropriate rubber compound based on the application and industry is essential to avoid seal failures and ensure the longevity of both the seal and the machinery. MGV Rubber’s technical team will guide you in the selection of the best rubber blend for your lip seal.

Types of Lip Seals

The main types of lip seals include single and double lip variations, with characteristics that differ based on resistance to high temperatures, fluid compatibility, and dimensional requirements. Common fields of application include hydraulic and pneumatic systems. Some popular types of lip seals are:

  • DE-DEM: Featuring a standard hardness of 75 ShA, these seals can withstand pressures up to 80 bar, with the outer lip serving as the dynamic sealing element. Commonly used compounds include NBR or FPM.
  • U-UM: With a standard hardness of 90 ShA, these seals are designed for pressures up to 120 bar and are typically used on both pistons and cylinders. Structurally robust, they require an interposed retaining ring to prevent axial displacement within the housing. Standard compounds are NBR or FPM.
  • DI-DIM: These seals, with a hardness of 90 ShA, can handle pressures up to 80 bar. The inner lip performs the dynamic sealing function, making them suitable for piston applications, particularly between the piston and liner or rod and guide. Common compounds used are NBR or FPM.

Lip seals are commonly employed in the automotive and heavy machinery industries, especially for the manufacturing of hydraulic and pneumatic pistons, as well as in other industrial applications.

Design, Production, and Molding

At MGV, we satisfy our client requirements by designing seals with the right features and rubber compounds, followed by custom production and molding processes tailored to the application. In Our expertise covers the design, production, and molding of technical rubber components across various industries. MGV s.r.l. can manufacture any custom rubber parts as requested by the client. The technical department designs molds and the necessary equipment for the production, using advanced machinery such as multi-axis CNC centers and EDM. We choose the most suitable materials and apply surface finishes like Teflon coating or chrome plating to optimize performance when needed. Every product is made in-house, undergoes strict quality checks, and is carefully packed for worldwide delivery.

Type of articles
  • Single or double lip
  • DE-DEM lip seals
  • U-UM lip seals
  • DI-DIM lip seals