Complete piston with integrated seals Prädifa series DP | Product Series

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Inside Diameter (mm)

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Maximum Working Temperature (C)

Seal Material

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Complete piston with integrated seals Prädifa series DP Complete piston with integrated seals Prädifa series DP

Complete piston with integrated seals Prädifa series DP

Where to Buy

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

Related Documents

Literature and Reference Materials
Pneumatic Seals--PTD3351
Complete piston with integrated cushioning DP--PTD3351
Installation Guidelines for Piston Seals--PTD3351
Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
Parker Final Exam in Physics / Sealing Systems Put to the Test
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Products Outside Diameter (mm) Inside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
DPA016Z5086 100 16 15.1 8.5 -20 120 Z5086
DPA020Z5051 100 20 18 6.5 -30 80 Z5051
DP0602Z5051 6 2 3.8 1.45 -30 80 Z5051
DP0803Z5051 8 3 5 1.8 -30 80 Z5051
DP1003Z5051 10 3 5 1.8 -30 80 Z5051
DP1203Z5051 12 4.5 6 2.3 -30 80 Z5051
DP1204Z5058 12 4.5 6 2.3 -20 80 Z5058
DP1603Z5051 16 4.5 6.5 2.3 -30 80 Z5051
DP1604Z5067 16 4.5 6.5 2.3 -20 200 Z5067
DP2005Z5067 20 6 7.5 2.8 -20 200 Z5067
DP2006Z5051 20 6 7.5 2.8 -30 80 Z5051
DP2006Z5058 20 6 7.5 2.8 -20 80 Z5058
DP2506Z5051 25 7 8.8 3.5 -30 80 Z5051
DP2506Z5146 25 7 8.8 3.5 -30 80 Z5146
DP2507Z5058 25 7 8.8 3.5 -20 80 Z5058
DP2507Z5067 25 7 8.8 3.5 -20 200 Z5067
DP3208Z5051 32 8 11 3.5 -30 80 Z5051
DP3208Z5067 32 8 11 3.5 -20 200 Z5067
DP3209Z5051 32 8 9.1 3.5 -30 80 Z5051
DP4008Z5051 40 8 11.8 4.5 -30 80 Z5051
DP4008Z5086 40 8 11.8 4.5 -20 120 Z5086
DP5010Z5051 50 10 14 4.5 -30 80 Z5051
DP6310Z5051 63 12 12.1 5.5 -30 80 Z5051
DP6310Z5086 63 12 12.1 5.5 -20 120 Z5086
DP6312Z5051 63 12 14 4.5 -30 80 Z5051
DP8012Z5051 80 16 12.1 5.5 -30 80 Z5051
DP8016Z5051 80 16 16 5.5 -30 80 Z5051
DP2005Z5051 20 6 7.5 2.8 -35 100 Z5071
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