The newly redesigned "Blue and Improved" Original Line® air cylinder now features permanent grease lubrication. This product line includes standard air cylinders, three-position air cylinders, MRS air cylinders, non-rotating air cylinders, and PC air cylinders. Design enhancements to this line have more than doubled the anticipated service life of this industry-leading, non-repairable family of air cylinders. Bore sizes: 5/16", 7/16", 9/16", 3/4", 7/8", 1 1/16", 1 1/4", 1 1/2", 1 3/4", 2", 2 1/2", 3"Wide variety of stroke lengths and mounting stylesOver 150,000 Original Line® cylinders are inventoried and ship same dayBimba can manufacture any catalog model in four days or lessBlue and Improved design doubles previous cylinder lifePermanent grease lubricant requires no additional lubrication during serviceEngineering SpecificationsPressure Rating: 250 PSITemperature Range:Buna N seals: -20° F (-29° C) to 200° F (90° C)Fluoroelastomer seals for high temperatures (up to 400°F) availableMagnetic piston option: max. operating temp. is 185° FMaterials:Rod: High strength carbon steel and stainless steelavailableBody: 304 stainless steelEnd Caps: 6061 aluminum (RoHS compliant)Rod Bushings: Oil-impregnated bronze except (5/16",7/16", 9/16" single acting)