Below is a list of Stainless Steel Hydraulic Cylinders manufacturers from Rockford, Illinois. Stainless steel hydraulic cylinders are linear actuators designed specifically for highly corrosive environments as well as those where hygienic cleaning is essential to industrial processes. Like all hydraulic cylinders, these devices convert the hydraulic energy of fluids under pressure into mechanical energy. This generates the linear force and motion needed to move machine linkages and any attached loads.