Features:This air cylinder is made of high quality aluminum round tube cylinder, with long serving lifeThe front and rear cover are threaded to the cylinder pipePiston seal adopts the special type double seal structure, there will be no leakage, compact size and oil storage function.The front cover adopts self-lubrication bearing guide, with good lubrication and guiding performance.The air cylinderis easy to installSpecifications:Model: SDA25*30Bore: 25mm/0.98inchStroke:30mm/1.18inMain material: aluminumWorking medium: airWorking pressure: 0.1 ~ 1MpaGuaranteed proof pressure: 1.5MPa(215Psi)Hole diameter: M5*0.8Action: double actingBuffering: anti-collision padTemperature: 4 F to 176 F (-15 C to 80 C) Size: 5.5*4*4cm/ 2.17 x 1.57 x 1.57inchWeight: 171gPackage Included:1 x Air Cylinder.