RAL series aluminium mini pneumatic cylinder, bore size range from 16 to 40mm. Front and rear cap are processed by high precision CNC machine, with strong guarantee of high consistency and concentricity. The barrel and front/rear cap of the mini pneumatic Cylinder are connected by thread structure with strong glue with durable time. Special air cushion design keeps less impact from piston to front/rear cap. Caps positioning machine guarantees front and rear caps of the mini cylinder locate at same horizontal position, easier to install. Better sealing performance with Japanese seals, together with Germany grease, gives RAL series aluminiu mini round pneumatic cylinder longer life.Standard with swiveling tail type, flat tail and round tail types are optional.