Cryo Industries 4 K Variable Temperature Closed Cycle Refrigerator Systems with Sample in Vacuum Mounting are designed for ‘cold finger’ sample mounting. Easy sample access is allowed through a quick connect vacuum shroud and single thread radiation shield. The temperature sensor is installed at the coldfinger to offer accurate temperature 










readings at the sample mount.




The REF4K models are available with a One or Two-Stage Gifford-McMahon (GM) refrigerator from Sumitomo Industries (SHI). The user is able to select the cooling power needed at 4.2 K: 0.1, 1.0 or 1.5 Watts.


The REF 4K systems have an operating temperature range of <4 K to 325 K, with optional high or low temperature stages available. The systems are available in numerous configurations including: 



  • Optical or Non-Optical
  • Standard, Compact and Sub-Compact sizes
  • High or Low Temperature Stages
  • Low Vibration version for IR arrays or other vibration sensitive experiments.