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CH-204-N 6.5K Cryocooler Series

Standard Scope of Supply

  • CH-204-N Cold Head
  • F-20L, F-70L/H or Zephyr® Compressor1
  • Helium Gas Lines – 3 m (10 ft.)2 or 3-25 m (10-82 ft.)3,4,5
  • Cold Head Cable – 3.5-15 m (11-50 ft.)2,3 or 3-20 m (10-66 ft.)4,5
  • Power Cable – 3 m (10 ft.)2, 3-6 m (10-20 ft.)4 or 2-8 m (6-27 ft.)5
  • Tool Kit

1 Up to two (2) cold heads can be operated with the F-70 Compressor.
2 With F-20L [Additional lengths may be available.]
3 With Zephyr®
4 With F-70L
5 With F-70H

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About the CH-204-N

The CH-204-N two-stage Gifford-McMahon Cryocooler is SHI’s only 6.5K Cryocooler, with a second-stage capacity of 2.5/3.0 W @ ≤10 K (50/60 Hz). It features Displex® pneumatic drive technology, limiting the number of wear parts in the refrigerator, and operates with both air and water-cooled helium compressors.


Power Supply50 Hz60 Hz
2nd Stage Capacity2.5 W @ ≤10 K3.0 W @ ≤10 K
Minimum Temperature16.5 K
Cooldown Time to 20 K140 Minutes35 Minutes
Weight7.8 kg (17.2 lbs.)
Dimensions (HxD)2468 x ø133 mm
(18.4 x ø5.3 in.)
Maintenance13,000 Hours
Regulatory ComplianceCE
1 Lowest temperature and cooldown time are for reference only.
2 With standard flat warm flange. (Available in other warm flange interfaces.)

Specifications subject to change without notice

Compressor Options

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