Product
Pneumatic Seals
Pneumatic seals do the same jobs as hydraulic rod and piston seals — but for compressed-air cylinders, where the sealed medium is air rather than oil and the seal has to run at much lower friction to avoid stick-slip and breakout-force problems.
Pneumatic seal profiles: EU, PP, and E4 types.
Overview
How pneumatic duty differs from hydraulic
Compressed air doesn't lubricate a seal the way hydraulic oil does, so pneumatic seal profiles and compounds are chosen specifically for low friction and the ability to run dry or with only minimal lubrication, often at higher cycle speeds than an equivalent hydraulic seal would see. This is why pneumatic seal materials differ from hydraulic ones even though the seal functions — piston, rod, wiper — are the same.
Product types
Pneumatic sealing range
Piston Seals
Low-friction piston seals for pneumatic actuator bores.
Rod Seals
Rod seals sized for pneumatic cylinder rod diameters and speeds.
U-Cups / O-Rings
Standard U-cup and O-ring sealing elements for compact pneumatic cylinders.
Materials
Which compound, and why
Polyurethane (PU)
Higher wear resistance for longer cycle life in higher-speed pneumatic duty.
Applications
Where used
Compressed-air cylinders and actuators across automation, packaging and general pneumatic machinery.