From Brooks Automation

The CTI Cryodyne Refrigeration Systems are a family of two stage, closed-cycle helium refrigeration systems based on the Gifford-McMahon thermodynamic cycle, offering usable heat lift from <10K to >80K for a variety of commercial and research applications. Helix Technology has the most thoroughly proven closed-cycle helium refrigeration systems on the market today, with over 65,000 commercial systems produced to date. The Cryodyne Refrigeration systems consist of a refrigerator assembly, compressor assembly and customized installation kit consisting of flexible interconnecting gas lines and refrigerator cable ranging from the standard 10-foot separation length up to 300-foot lengths.