Representative image of pneumatic combination rod-wiper seals
Representative image

Pneumatic Combination Rod-Wiper Seals

A pneumatic combination rod-wiper seal is a compact profile that joins an inward pressure lip with an outward dirt-scraping lip. It seals compressed air and cleans the moving rod from one housing groove, conserving axial space in small actuators and simplifying the end-cap arrangement.

Key facts

Common types
Snap-in combined seal, Metal-cased combined seal, Compact cylinder profile, Double-lip combination
Materials
Polyurethane, NBR, FKM (fluoroelastomer), Zinc-plated steel
Used in
Compact cylinders, Transit door actuators, Electronics assembly, Packaging automation, Pneumatic slides

Types

  • Snap-in combined seal
  • Metal-cased combined seal
  • Compact cylinder profile
  • Double-lip combination

Materials

Applications

  • Compact cylinders
  • Transit door actuators
  • Electronics assembly
  • Packaging automation
  • Pneumatic slides

What to send for a quote

  • rod diameter
  • gland bore
  • groove width
  • open or closed groove
  • air lubrication state

Questions about pneumatic combination rod-wiper seals

What should I send to identify pneumatic combination rod-wiper seals?

Send rod diameter, gland bore, groove width, open or closed groove, air lubrication state. A cross-section photograph should show which lip faces the pressure side and which projects towards the atmosphere. A clear photograph, drawing or readable reference can resolve details that dimensions alone do not show.

How should I select pneumatic combination rod-wiper seals?

Check that both the pressure lip and scraper geometry suit the rod finish, contamination, friction and available gland space. Confirm the mating parts and operating environment before ordering, since an apparently similar size can use a different profile, material or internal arrangement.

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