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PARKER DR PNEUMATIC SEAL

    Pneumatic Seal DR

    The double-acting pneumatic complete piston DR with inductive position interrogation and integrated cushioning is specifically designed to meet the requirements of modern pneumatic cylinders. The extremely slim complete piston is suitable for use in a wide range of different cylinder types and with various sensors.The combination of all functionalities – sealing, guiding, cushioning, interrogating– in a single component assures easy assembly and, in addition, offers handling and logistic cost benefits.

    • Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
    • Use of different types of sensors (inductive) is possible.
    • Cushioning buffers on the piston´s front faces with integrated ventilation ducts provide for mechanical cushioning of the cylinders.
    • Multi-functional element: seal, guiding and cushioning element.
    • Immediate response (full pressure load) thanks to incorporated venting channels.
    • Good wear resistance.
    • Ideal corrosion protection thanks to complete elastomer covering.
    • Smooth running due to optimum adjustment of the functional lips.
    • Easy attachment to the piston rod without additional sealing elements.
    • Easy installation due to integrated static sealing function.
    • Excellent media resistance in case of suitable compound selection.
    • Low assembly height of the complete piston enables short cylinder designs.
    • Versatile complete piston for nearly all cylinder designs.

    Range of application 
    Complete piston with end cushioning for double-acting pneumatic cylinders, provided that no excessive lateral guidance loads will occur (long strokes and buckling).
    Operating pressure ≤ 10 bar
    Operating temperature -20 °C to +80 °C
    Sliding speed ≤ 1 m/s
    Media Compressed air, both lubricated and oil
    free (after greasing for fitting)

    Installation
    The magnetic piston DR is connected to the piston rod by threading or riveting. The threaded connection should be secured against loosening. For operation in dry or oilfree air, a long-term lubricant must be used for the piston and cylinder.

    D, d, H1, H2, S, h, D2, D3,
    16 4.5 6.5 5.1 2.65 2.95 6.9 13.5
    20 7.5 6.1 3.65 3.95 10.1 17.5
    25 7.6 3.65 4.15 11 21.9
    32 10.9 8.7 5.5 15 27.9
    40 11.9 9.7 5.5 20 35.7
    50 10 13.8 11.6 6.5 26 45.6
    63 12 13.8 11.6 6.5 33.2 58.25
    80 16 15.9 13.7 7.5 34.8 75.4
    100 20 17.9 15.7 8.5 47 95.4