Complete piston with integrated seals Prädifa series DP | South Africa

Complete piston with integrated seals Prädifa series DP | Product Series

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Complete piston with integrated seals Prädifa series DP

Complete pneumatic piston with mechanical cushioning function, double-acting.

Technical Specifications

  • Thermal Application Type: High Temperature (< 205°C), Standard Moderate Temperature (-35 to 100°C)
  • Media: Pneumatic
  • Polymer Material Options: Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN), Nitrile Butadiene Rubber (NBR, XNBR), Fluorocarbon Rubber (FKM, FPM)
  • Maximum Operating Pressure: 16 bar
  • Minimum Operating Temperature: -30 to -20 °C
  • Maximum Operating Temperature: 80 to 200 °C
  • Maximum Surface Speed: 1 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: Pneumatic Pressure (< 16 bar)
Safety Warning

Full Product Description

The double-acting DP pneumatic piston is a two-component seal design consisting of a metallic supporting element with a vulcanized guiding ridge and sealing lips. The complete piston performs three functions: sealing, guiding and end position cushioning.

• Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
• 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).

The DP complete piston with integrated end position cushioning is available in the following compounds:
Z5051 – Industrial purposes
Z5067 – High temperatures
Z5086 – Medium-duty

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