Rod Seals

Rod seals are used in hydraulic cylinders for fluid sealing. They are external to the cylinder head and seal against the cylinder’s rod, preventing leakage of fluid from within the cylinder to the outside. Yimai Sealing Solutions offers a wide range of hydraulic rod seals that provide the ultimate in protection from ingress of media. This includes O-Ring energized Polytetrafluoroethylene (PTFE) seals, polyurethane (PU) U-Cups, and many more. Our proprietary rod seal designs meet users’ requirements for low friction, compact form and simple installation. A hydraulic rod seal is usually manufactured in our PTFE based material or polyurethane. Specially engineered for fluid power applications, these compounds provide exceptional resistance to wear and outstanding extrusion properties. Options are available that are compatible with virtually all media, they demonstrate unrivalled temperature performance.
  • Rod seals ES are axial preload seals

    Rod seals ES are axial preload seals

    For different liquid and temperature range, but by choosing to know when the material to control.
    By changing or adjusting the axial preload (slot or ring head screw) can adapt to special working conditions.
    Due to the stability of forming, it is not sensitive to high pressure peak.
    Compared with single seal, the pollution of the medium and the slightly damaged sliding surface is not sensitive.
    Due to the contact area and there are several sealing lip, it has excellent sealing performance.
    Seals can be cut to facilitate installation. Therefore, in the case of maintenance or repair, there is no need to remove the cylinder completely.

  • Rod seals U-Ring BA

    Rod seals U-Ring BA

    Special wear resistance.
    Insensitivity to vibration loads and pressure peaks.
    Very compression resistance
    It has an ideal sealing effect under no-load and low temperature conditions.
    Adapted to the most demanding working conditions

  • Rod seals OD for control cylinders and servo systems

    Rod seals OD for control cylinders and servo systems

    Minimal starting and motion friction, even at low speeds to ensure smooth movement, no crawling phenomenon.
    Resistant to wear and tear.
    High temperature resistant.
    Due to the high chemical resistance of the seal ring and the choice of o-rings of different materials, OD seals can be used in almost all media.
    Because of the special sealing structure, it has good oil return property.

  • Rod seals M1 are single acting reciprocating seals

    Rod seals M1 are single acting reciprocating seals

    Rod seals M1 is suitable for sealing ring with axial moving piston rod, cavity groove can be exchanged with O-ring cavity groove.

    Resistant to harsh media and extreme temperatures
    Good dry friction characteristics
    Static and dynamic friction values are low

  • Rod seals U-Ring B3

    Rod seals U-Ring B3

    Excellent wear resistance
    Impact resistance
    Resistance to squeeze out
    Small compression deformation
    Adapted to the most demanding working conditions
    Due to the pressure between the sealing lip introduces the medium and has full lubrication
    Improved sealing performance under zero pressure
    Excellent protection from outside air
    Easy to install

    It is mainly used for sealing piston rod and plunger in heavy duty traveling machinery and static pressure.