GM (Gifford-McMahon)


4K Cryocooler series
The RDK-101D two-stage Gifford-McMahon Cryocooler is SHI’s smallest-capacity 4K Cryocooler, with a second-stage capacity of 0.16/0.2 W @ 4.2 K (50/60 Hz). The RDK-101DL features a guaranteed minimum temperature of <2.3 K. Both models operate with either air or water-cooled helium compressors.

These 4K Cryocoolers can be found cooling a wide variety of analytical and experimental devices, and offer a very cost effective alternative to open-cycle liquid helium systems.

Standard Scope of Supply

  • RDK-101D(L) Cold Head
  • F-20L, CNA-11B/C or FA-20L Compressor
  • Helium Gas Lines – 3 m (10 ft.)1 or 3-20 m (10-66 ft.)2
  • Cold Head Cable – 6 m (20 ft.)1 or 3.5-20 m (11-66 ft.)2
  • Power Cable – 5 m (16.5 ft.)1 or 3 m (10 ft.)2
  • Tool Kit