Item Type: Pneumatic Air Cylinder Model: SDA40X50 Material: Aluminum alloy Type: Thin cylinder Bore: Approx. 40mm / 1.6in Connection Pipe Thread: PT1/4 Connection Pipe Diameter: 1/4(mm) Action Mode: Double-action Maximum Stroke: Approx. 50mm / 2in Temperature Range: -10~60 Package List 1 x Pneumatic Air Cylinder 1Goodquality aluminum alloy material can greatly ensure the durability and stability 2The front and rear covers are screwed on the cylinder tube, which is tight and will not fall off easily, very stable 3Piston seal adopts specialshaped twoway sealing structure, compact appearance, come with oil storage function 4The front end cover is guided by a selflubricating bearing, which has good lubrication and guiding performance, high efficient 5There are three styles to choose from, adopt twoway action mode and fixed buffer form