The SPC-1T is a low temperature, one cylinder, two stage cryogenerator generally used for process cooling
The SPC-4 is Stirling-cycle based, one stage cryogenerator, generally used for cooling in the temperature range of 65K - 200K.
SPC-1 is Stirling-cycle based, one stage cryogenerator, generally used for cooling in the temperature range of 65 K - 200K.