Compact Cylinders with Octagonal Tube

Cylinders Ø 16-63mm have compact overall dimensions, and are in accordance with UNITOP recommendations (RO series) and ISO inter-axes (RN series). These cylinders are also available in a non-rotating version, and with an extended piston. Series RO and RN cylinders feature adjustable pneumatic cushioning, which allows for a considerably higher speed and dramatic reduction in noise level.


  • Working Pressure: 22 – 145 PSI
  • Ambient Temperature: 4 – 176°F
  • Fluid: Filtered Air
  • Barrel: Octangonal Aluminum Extrusion
  • End-Caps: Aluminum Die-Cast
  • Piston Rod: Chromium-plated steel or stainless steel
  • Piston: Aluminum
  • Seals: Nitrile rubber piston seal, polyurethane rod seal
  • Magnetic Version: Series DF (standard)


  • Model: RO/RN
  • UNITOP (RO) or ISO 21287 (RN) Compact Cylinders Ø 16-63mm Octagonal Tube
  • Working Pressure: 22-145 psi
  • Ambient Temperature: 4-176°F
  • Fluid: Filtered air