Pneumatic seal 16x20,5x4/3,4 A853 PU

Pneumatic rod seal A853, dimensions 16×20.5×4/3.4 mm, made of polyurethane (PU).
Designed for pneumatic cylinders as a rod seal, it also functions as a wiper – removing contaminants from the rod surface during retraction, thus protecting the cylinder interior.

Design features:

• rod seal profile for pneumatic applications,

• sealing lip combined with wiper function,

• solid body for stable groove installation,

• suitable for reciprocating pneumatic motion.

Technical details:

• Inside diameter: 16 mm (≈ 0.63 inch)

• Outside diameter: 20.5 mm (≈ 0.81 inch)

• Total height: 4 mm (≈ 0.16 inch)

• Working height: 3.4 mm (≈ 0.13 inch)

• Material: PU 92 ShA

• Operating temperature: –40°C to +90°C

• Max. pressure: 20 bar

• Max. speed: up to 1 m/s

Material – Polyurethane (PU):

• excellent wear and abrasion resistance,

• high elasticity ensuring proper sealing,

• resistant to compressed air and lubricating oils,

• tailored for pneumatic sealing systems.