GM (Gifford-McMahon)


10K Cryocooler Series
The CH-208R two-stage Gifford-McMahon Cryocooler is one of SHI’s mid-capacity 10K Cryocoolers, with a second-stage capacity of 6.0/7.5 W @ 20 K (50/60 Hz). It features Whisper® technology for quieter operation, as well as Displex® pneumatic drive technology, limiting the number of wear parts in the refrigerator. It operates with water-cooled helium compressors.

Our original pneumatic drive, which limits the number of wear parts in the refrigerator, combined with state-of-the-art design features, results in superior performance and low maintenance costs. Select models also feature Whisper® technology for quieter operation. SHI’s 10K Cryocoolers have proven reliability in thousands of applications, including MRI, cryopumping, research and other custom low temperature applications.

Standard Scope of Supply

  • CH-208R Cold Head
  • F-40L/H or F-70L/H Compressor
  • Helium Gas Lines – 3-25 m (10-82 ft.)
  • Cold Head Cable – 3-20 m (10-66 ft.)
  • Power Cable – 3-6 m (10-20 ft.)1 or 2-8 m (6-27 ft.)
  • Tool Kit