one- and two-stage GM cold heads

SHI Cryogenics offer numerous GM refrigerator cryo coolers that operate in conjunction with a compressor in a closed helium circuit. The range includes mechanically driven versions for the range around 4 K and the pneumatically driven Displex® models for the 6.5 K and 10 K ranges. In addition, some models are also available in single-stage versions with base temperatures of around 40 K.

We offer the Displex® models in one- and two-stage versions.

As an option we offer the cold heads instrumented with Si diode(s) and suitable heater in connection with a temperature monitor or controller.