Single-acting Hydraulic Cylinders  Collar threads,Website:http://www.dudemachinery.com, plunger threads and base mounting holes  enable easy fixture (on most models)  Designed for use in all positions  High strength alloy steel for durability  Heavy duty return springs  Baked enamel finish for increased corrosion resistance  Plunger wiper reduces contamination, extending cylinder life.  Removable handle makes fixing easier ( RC5013, RC7513  and all 95 ton cylinders)  Most of the models can be nickel plated.  All models have CR-400 couplers and dust cap.