GM (Gifford-McMahon)


4K Cryocooler series
The RDE-418D4 two-stage Gifford-McMahon Cryocooler is SHI’s highest-capacity 4K Cryocooler, with a second-stage capacity of 1.8/2.0 W @ 4.2 K (50/60 Hz). Its optimized design increases cooling performance by 20% over the RDK-415D2 1.0 W 4K Cryocooler, without increasing its physical size or the compressor’s input power. It operates with water and air-cooled helium compressors, including the inverter-driven F-50S and FA-50S.

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

  • RDE-418D4 Cold Head
  • F-50L/H, F-50SL/SH, F-70L/H, FA-50L/H or FA-50SL/SH Compressor
  • Helium Gas Lines – 20 m (65 ft.), or 6 m (20 ft.) with Buffer Tank
  • Cold Head Cable – 6-20 m (20-66 ft.) or 20 m (66 ft.)
  • Power Cable – 2 m (6 ft.)2 or 5 m (16.5 ft.)
  • Hose Nipples
  • Tool Kit