Custom Cryogenic Systems

 With a focus on dry, closed cycle cryostats, we have specialized in a wide range of cryostat integrations that include Gifford-McMahon (GM), Pulse Tube, and Stirling style cryocoolers.  Using these options, we've achieved higher cooling powers and still kept the sample vibrations low.

 Four Nine Design has many years of cryogenic platform development to achieve ultra-low vibrations. Utilizing many novel vibration isolation techniques from simple linear springs systems to eddy-current damping to LIGO inspired non-linear stiffness canceling systems. Such systems have been designed, built, and delivered to enable research in demanding applications such as Scanning Probe Microscopy (SPM), Atomic Force Microscopy (AFM), and time-sensitive micro cavity research. 

With innovation and robust designs our highest priority, we combine our innovative cryogenic solutions with UHV best practices to create easy-to-use research products that enable your difficult applications. Low outgassing materials, vacuum chamber bake-outs, as well as novel UHV sealing techniques have all been employed to achieve <1x10^11 Torr vacuum levels. We strive to fundamentally simplify these historically difficult systems.

Oftentimes, cryogenic research systems require high-capacity, high density vacuum feedthroughs. We work closely with the vacuum feedthrough industry professionals as we successfully integrate electrical, coaxial, and fiber optic feedthroughs into our systems. But it doesn't stop there. We ensure that, once inside the cryostat, all wire and cable assemblies are efficiently constructed, thermally lagged, and managed to maintain a base sample temperature and save on your cooling power budget.

Some applications require extensive thermal noise damping schemes. We have specialized techniques that will decrease the peak-to-peak thermal noise without sacrificing the base temperature. 

 Outside of the laboratory, there are some cryogenic applications that require mobility whether by person, ground vehicle, airplane or rocket. Power consumption efficient cryocoolers with custom form factor chassis fall directly within our scope of capabilities.