Profile: Greenco Mfg. Corporation is serving the industry for pneumatic and hydraulic cylinder applications. We offer a broad range of cable type rodless cylinders and NFPA interchangeable rod cylinders. Our reed switch consists of a hermetically sealed glass capsule containing two cantilevered ferromagnetic blades. In addition, remote location or turning corners may require one or more additional sheave bracket assemblies, which is ready for mounting. We offer Trac-Trol that combines linear ball bearings in a trolley, which runs on hardened and ground shafts.