10 K Cryocoolers — Sumitomo (SHI) CH-204 (6.7 W at 20 K) and CH-204-N (2.5 W at 10 K) 10 K Refrigerators

The CH-204 systems provide 6.7 W of cooling at a temperature of 20 K at the second stage and can reach a minimum temperature of <10 K (with no parasitic or experimental heat loads). Upgrade to the model CH-204-N for 2.5 W at 10 K at the second stage.

Standard configuration

Characteristics:

  • Refrigeration capacity: 6.7 W at 20 K (CH-204) and 2.5 W at 10 K (CH-204-N)
  • Orientation independent
  • Push-button operation

Download the SHI CH-204/204-N 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-204 Load Map (50 Hz & 60 Hz)

Download the SHI CH-204-N Load Map (50 Hz & 60 Hz)

Janis — a Lake Shore Company
SHI Cryogenics Group CH-204

CH-204 Specifications

(Scroll down for CH-204-N)

Refrigeration cycleModified Gifford-McMahon
Refrigeration capacity (vertical position)50 Hz1st stage: 13.5 W at 80 K; 2nd stage: 6.7 W at 20 K
60 Hz1st stage: 16.2 W at 80 K; 2nd stage: 8.1 W at 20 K
Lowest temperature 2nd stage†<10 K
Cooldown time 2nd stage†50 Hz: <35 min; 60 Hz: <30 min
Cold headAmbient temperature: 4 to 40 °C (40 to 104 °F)‡

Weight: 7.8 kg (17.2 lb)

Maintenance interval: 13,000 h
CompressorModel: HC-4E1

Weight: 75 kg (165 lb)

Maintenance interval: 30,000 h
Electrical power1-phase, 208/230 V, 60 Hz; 200 V, 50/60 Hz; 230/240 V, 50 Hz
Power consumption (50/60 Hz)2.6/3.0 kW
Flexline length10 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.

CH-204-N Specifications

Refrigeration cycleModified Gifford-McMahon
Refrigeration capacity (vertical position)50 Hz1st stage: N/A; 2nd stage: 2.5 W at 10 K
60 Hz1st stage: N/A; 2nd stage: 3.0 W at 10 K
Lowest temperature 2nd stage†<6.5 K
Cooldown time 2nd stage†50 Hz: <40 min; 60 Hz: <35 min
Cold headAmbient temperature: 4 to 40 °C (40 to 104 °F)‡

Weight: 7.8 kg (17.2 lb)

Maintenance interval: 13,000 h
CompressorModel: HC-4E1

Weight: 75 kg (165 lb)

Maintenance interval: 30,000 h
Electrical power1-phase, 208/230 V, 60 Hz; 200 V, 50/60 Hz, 230/40 V, 50 Hz
Power consumption (50/60 Hz)2.6/3.0 kW

†Lowest temperature, cooldown time are for reference. (Depending on ambient temperature, cooling water temperature, etc.)
‡Cooling capacity may degrade by max. 5% if ambient temperature is above 28 °C.
Specifications subject to change without notice.