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RDE-418D4 4K Cryocooler Series

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.)1,3 or 20 m (66 ft.)2
  • Power Cable – 2 m (6 ft.)2 or 5 m (16.5 ft.)1,3
  • Hose Nipples1
  • Tool Kit

1 With F-50
2 With F-70
3 With FA-50 or FA-50S

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About the RDE-418D4

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.


Power Supply50 Hz60 Hz
2nd Stage Capacity1.8 W @ 4.2 K2.0 W @ 4.2 K
1st Stage Capacity42 W @ 50 K50 W @ 50 K
Minimum Temperature1<3.5 K
Cooldown Time to 4.2 K1<60 Minutes
Weight20.0 kg (44.1 lbs.)
Dimensions (HxWxD)554 x 180 x 306 mm
(21.8 x 7.1 x 12.0 in.)
Maintenance10,000 Hours
Regulatory ComplianceUL/CE, RoHS
1 Lowest temperature and cooldown time are for reference only.

Specifications subject to change without notice

Compressor Options

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