Complete piston with integrated seals Prädifa series DE | Product Series

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Inside Diameter (mm)

Element Height (mm)

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Minimum Working Temperature (C)

Maximum Working Temperature (C)

Seal Material

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Complete piston with integrated seals Prädifa series DE Complete piston with integrated seals Prädifa series DE

Complete piston with integrated seals Prädifa series DE

Where to Buy

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

Technical Specifications

  • Thermal Application Type: High Temperature (< 205°C), Expanded Low and High Temperature (< -35 to 140°C), Standard Moderate Temperature (-35 to 100°C)
  • Media: Pneumatic
  • Polymer Material Options: Nitrile Butadiene Rubber (NBR, XNBR), Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN), Fluorocarbon Rubber (FKM, FPM), Ethylene Propylene Rubber (EPM, EPR, EPDM)
  • Maximum Operating Pressure: 12 bar
  • Minimum Operating Temperature: -50 to -10 °C
  • Maximum Operating Temperature: 80 to 200 °C
  • Maximum Surface Speed: 1 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: Yes
  • Pressure Rating: Pneumatic Pressure (< 16 bar)
Safety Warning

Full Product Description

The single-acting pneumatic complete piston DE is a two-component seal design, consisting of a metallic carrier with a vulcanized guiding surface and sealing lip. 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.
• Also available as double-acting version.
• Low assembly height of the complete piston enables short cylinder designs.
• Versatile complete piston for nearly all cylinder designs.

Range of application:
Complete piston for single-acting pneumatic cylinders with end cushioning, provided that no excessive lateral guidance loads will occur (long strokes and buckling).

The DE complete piston with integrated seals is available in the following compounds:
Z5117 - Industrial applications
Z5142 - High temperatures

Related Documents

Literature and Reference Materials
Pneumatic Seals--PTD3351
Complete piston with integrated cushioning DE--PTD33551
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
DEA020Z5117 100 20 12.9 6.5 -30 80 Z5117
DE0803Z5051 8 3 3.7 1.8 -30 80 Z5051
DE0803Z5117 8 3 3.7 1.8 -30 80 Z5117
DE0803Z5371 8 3 3.7 1.8 -20 100 Z5371
DE1203Z5108 12 4.5 4.4 2.3 -30 80 Z5108
DE1603Z5067 16 4.5 4.4 2.3 -20 200 Z5067
DE1603Z5108 16 4.5 4.4 2.3 -30 80 Z5108
DE1603Z5142 16 4.5 4.4 2.3 -10 200 Z5142
DE1603Z5433 16 4.5 4.4 2.3 -50 150 Z5433
DE2005Z5108 20 6 5.5 2.8 -30 80 Z5108
DE2005Z5142 20 6 5.5 2.8 -10 200 Z5142
DE2506Z5051 25 7 6.4 3.5 -30 80 Z5051
DE2506Z5067 25 7 6.4 3.5 -20 200 Z5067
DE2506Z5108 25 7 6.4 3.5 -30 80 Z5108
DE2506Z5142 25 7 6.4 3.5 -10 200 Z5142
DE3208Z5117 32 8 7.5 3.5 -30 80 Z5117
DE3208Z5142 32 8 7.5 3.5 -10 200 Z5142
DE4008Z5117 40 8 8.5 4.5 -30 80 Z5117
DE5010Z5117 50 10 10 4.5 -30 80 Z5117
DE5010Z5142 50 10 10 4.5 -10 200 Z5142
DE6312Z5117 63 12 10 4.5 -30 80 Z5117
DE6312Z5142 63 12 10 4.5 -10 200 Z5142
DE8016Z5117 80 16 11.4 5.5 -30 80 Z5117
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