Rod sealing set Prädifa series ON, Polon® | Product Series

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Outside Diameter (mm)

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Seal Material

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Rod sealing set Prädifa series ON, Polon® Rod sealing set Prädifa series ON, Polon®

Rod sealing set Prädifa series ON, Polon®

Where to Buy

Rod sealing set for hydraulic cylinders, double-acting, PTFE slipper seal design. Low friction. For high-pressure applications. ISO 7425.

Technical Specifications

  • Inside Diameter: 4 to 1050 mm
  • Outside Diameter: 8.9 to 1088 mm
  • Media: Hydraulic
  • Polymer Material Options: Polytetrafluoroethylene (PTFE, mPTFE, TFM, Polon®), Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®), Ultra-High Molecular Weight Polyethylene (UHMW-PE)
  • Maximum Operating Pressure: 400 bar
  • Minimum Operating Temperature: -50 to -25 °C
  • Maximum Operating Temperature: 80 to 200 °C
  • Maximum Surface Speed: 0.5 m/sec, 4 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C), High Temperature (< 205°C)
  • Pressure Rating: High Pressure (< 500 bar)
Safety Warning

Full Product Description

The double-acting ON rod sealing set featuring a Slipper Seal® design is characterized by minimal break-away and dynamic friction and is therefore also suitable for low-lube conditions. The seal has been designed for housings acc. to ISO 7425-2.
The ON product series is particularly well suited for sealing applications in control cylinders, servo-assisted systems and machine tools.
Due to the material combination of the slipper ring (PTFE) and the O-ring (elastomer), this product is suitable for a wide range of applications, especially for aggressive media and/or high temperatures. An extensive selection of materials is available for specific application profiles.

• Good sealing performance in extremely small assembly conditions.
• Can also be used for single-acting applications.
• Excellent wear resistance.
• Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.
• Good energy efficiency due to low friction.
• Insensitive to pressure peaks.
• High temperature resistance assured by suitable O-ring compound selection.
• High extrusion resistance.
• Adaptable to nearly all media thanks to high chemical resistance of the sealing ring and large O-ring compound selection.
• Dimensions according to ISO 7425-2.
• Short axial assembly length.
• Installation in closed and undercut housings.
• Available in diameters from 4 to 4500 mm.
• Machined small-volume series and samples available with short lead times.

Range of application:
For high-pressure applications

Related Documents

Literature and Reference Materials
PTFE Seals Design Guide--PTD3354
Installation Guidelines for SlipperSeals® - Rod Seals--PTD3354
Slipper Seal®--Rod sealing set ON--PTD3354
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
Communities, Blogs & Industry Links
Sealing solutions for the mobility of the future
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Products Inside Diameter (mm) Outside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
ON028031400111B 28 35.3 3.2 3.2 -30 80 Ultra High Molecular Weight Polyethylene
ON018031400111A 18 22.9 2.2 2.2 -30 80 Ultra High Molecular Weight Polyethylene
ON119005200113D 119 134.1 6.3 6.3 -50 110 Polytetrafluorethylene 40% bronze
ON308005200116D 308 323.1 6.3 6.3 -30 100 Polytetrafluorethylene 40% bronze
ON008005200111A 8 12.9 2.2 2.2 -30 110 Polytetrafluorethylene 40% bronze
ON055005200111D 55 70.1 6.3 6.3 -30 110 Polytetrafluorethylene 40% bronze
ON100005200111D 100 115.1 6.3 6.3 -30 110 Polytetrafluorethylene 40% bronze
ON340005200111F 340 364 8.1 8.1 -30 110 Polytetrafluorethylene 40% bronze
ON004005200111A 4 8.9 2.2 2.2 -30 110 Polytetrafluorethylene 40% bronze
ON012005200111A 12 16.9 2.2 2.2 -30 110 Polytetrafluorethylene 40% bronze
ON018005200111B 18 25.3 3.2 3.2 -30 110 Polytetrafluorethylene 40% bronze
ON040005200111C 40 50.7 4.2 4.2 -30 110 Polytetrafluorethylene 40% bronze
ON050005200111D 50 65.1 6.3 6.3 -30 110 Polytetrafluorethylene 40% bronze
ON060005200111C 60 70.7 4.2 4.2 -30 110 Polytetrafluorethylene 40% bronze
ON060005200111D 60 75.1 6.3 6.3 -30 110 Polytetrafluorethylene 40% bronze
ON110005200111D 110 125.1 6.3 6.3 -30 110 Polytetrafluorethylene 40% bronze
ON200005200111E 200 220.5 8.1 8.1 -30 110 Polytetrafluorethylene 40% bronze
ON220005200111E 220 240.5 8.1 8.1 -30 110 Polytetrafluorethylene 40% bronze
ON230005200111E 230 250.5 8.1 8.1 -30 110 Polytetrafluorethylene 40% bronze
ON025008000111S 30 42 10 10 -30 110 Polyurethane
ON028008300111B 28 35.3 3.2 3.2 -30 110 Polyurethane
ON006005200111A 6 10.9 2.2 2.2 -30 110 Polytetrafluorethylene 40% bronze
ON024005200111C 24 34.7 4.2 4.2 -30 100 Polytetrafluorethylene 40% bronze
ON040005200119C 40 50.7 4.2 4.2 -45 100 Polytetrafluorethylene 40% bronze
ON180005200111D 180 195.1 6.3 6.3 -30 100 Polytetrafluorethylene 40% bronze
ON215005200111E 215 235.5 8.1 8.1 -30 100 Polytetrafluorethylene 40% bronze
ON014003000111A 14 18.9 2.2 2.2 -30 100 PS030
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