AL630

High Cooling Power at 20 Kelvin

The AL630 Gifford-McMahon Cryocooler sets the benchmark in GM cryocooler performance, offering the highest cooling capacity in its class. It delivers 100 W of cooling capacity at 20 K, making it ideal for applications that require substantial thermal loads at low temperatures.

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Versatile Applications

From hydrogen liquefaction to fusion research, the AL630 GM Cryocooler is a versatile solution for both industrial use and research applications, providing extremely powerful cooling in the 20 K temperature range.

The AL630 is ideally suited for cooling high-temperature superconducting (HTS) magnets and other critical components. For example, in fusion energy research it is used to cool the superconducting containment field coils.

Another popular application in the 20 K range is hydrogen liquefaction, where cryocoolers are used to maintain the low temperatures necessary for the liquefaction process. Here, the AL630 can be used to cool storage units or hydrogen-powered equipment, such as hydrogen fuel cells. Its excellent reliability and power to performance ratio make it a key enabler in the pursuit of cleaner energy.

The AL630 is also ideal for use in cold helium circulation systems, where it helps pre-cool magnets and reduce the consumption of valuable liquid helium.

Engineered for Reliability

The Cryomech AL630 is not just powerful—it’s built to last. The cryocooler uses a pneumatically driven displacer that cycles helium gas through a regenerating material and expansion space. The GM cycle ensures stable and efficient cooling even under fluctuating operational conditions. Its mechanical simplicity and low-speed operation make it a dependable choice for long-term deployment in industrial and research settings.

Low Maintenance. High Performance.

The slower cycle speeds of the AL630 reduce wear on moving parts—especially the displacer mechanism, which is key to its cooling cycle. The reduction in wear results in extended service intervals, with a mean time between maintenance of 10 000 operating hours, making it the ideal choice for continuous-use environments. Additionally, most unit maintenance can be carried out on location, so there’s even less disruption to your work.

Orientation Independent

The AL630 Gifford-McMahon Cryocooler can be installed in virtually any orientation—vertical, horizontal, or angled—without compromising its performance, making it ideal for setups where flexibility is key.