Vibration-sensitive applications can be cryocooled in the 20-100K range by the Cryomech Cold Helium Circulation Systems. The customers object is cooled by mounting it to a cold finger through which circulating, constant-pressure, cold helium flows to absorb the heat load. The cold helium is cryocooled by a Gifford-McMahon Cycle Cryocooler separated from the cold finger by the flexible Cold Helium Transfer Line, eliminating the vibrations . The complete system is closed-cycle and operates with the reliability of the GM Cryocoolers and with a warranty of 10, 000 hours. The CHCS comes in two capacity sizes: 120W and 200W @ 80K, the CHCS120 and CHCS200.