10 K Cryocoolers — Sumitomo (SHI) CH-202 (1.8 W at 20 K) 10 K Refrigerator
These systems provide 1.8 W of cooling at a temperature of 20 K at the second stage (50 Hz) and can reach a minimum temperature of <10 K (with no parasitic or experimental heat loads).
Please see the compressor page for more information.
- Refrigeration capacity 1.8 W at 20 K
- Orientation independent
- Push-button operation
Download the SHI CH-202 Mechanical Drawing. (This is a secured document and we were not able to rotate the pages. However, while viewing the document, you can right-click on the page and select "rotate clockwise" for easy viewing.)
Download the SHI CH-202 Load Map (50 Hz & 60 Hz).
|Refrigeration cycle||Modified Gifford-McMahon|
|Refrigeration capacity (vertical position)||50 Hz||1st stage: 7.3 W at 77 K; 2nd stage: 1.8 W at 20 K|
|60 Hz||1st stage: 8.8 W at 77 K; 2nd stage: 2.2 W at 20 K|
|Lowest temperature 2nd stage †||<10 K|
|Cooldown time 2nd stage †||50 Hz: <75 min; 60 Hz: <65 min|
|Cold head||Ambient temperature: 4 to 40 °C (40 to 104 °F)‡|
Weight: 6.8 kg (15 lb)
Maintenance interval: 13,000 h
Weight: 75 kg (165 lb)
Maintenance interval: 30,000 h
|Electrical power||1-phase; 200, 230/240 V, 50 Hz; 208/230 V, 60 Hz|
|Power consumption (50/60 Hz)||2.6/3.0 kW|
|Flexline length||10 ft|
|Flexline weight||~4.5 lb per line|
†Lowest temperature, cooldown time are for reference. (Depending on ambient temperature, cooling water temperature, etc.)
‡Cooling capacity may degrade by maximum 5% if ambient temperature is above 28 °C.
Specifications subject to change without notice.