Products
4 Kelvin Closed Cycle Refrigerator Systems from Janis and SHI
Sumitomo (SHI) 4 K Refrigerator - RDK-415D (1.5 Watt @ 4.2 K)
Overview
These systems provide 1.5 Watts of cooling at a temperature of 4.2 K at the second stage and can reach a minimum temperature of 3 K (with no parasitic or experimental heat loads). Compact water- or air-cooled compressors and 20-meter long flexible gas lines complete the refrigerator package. (Please see our Compressors page for more information.) Designs incorporating both refrigerator and cryostat are available for a variety of applications.
Standard Configuration
These systems provide 1.5 Watts of cooling at a temperature of 4.2 K at the second stage and can reach a minimum temperature of 3 K (with no parasitic or experimental heat loads). Compact water- or air-cooled compressors and 20-meter long flexible gas lines complete the refrigerator package. (Please see our Compressors page for more information.) Designs incorporating both refrigerator and cryostat are available for a variety of applications.
Characteristics:
- Larger Capacity of 1.5 W @ 4.2 K
- Orientation Independent
- Push-button Operation
Please click here to download the RDK-415D drawing and typical load map (224 KB).
The downloaded file will be in PDF format which is viewable and printable with Acrobat Reader, a free plug-in utility from Adobe. To download the free acrobat plug-in software click here.
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Specifications
COLD HEAD MODEL RDK-415D
| Refrigeration Cycle | Modified Gifford-McMahon |
Refrigeration Capacity
(Vertical Position) | 50 Hz | 1st stage: 35 W @ 50 K
2nd stage: 1.5 W @ 4.2 K |
| 60 Hz | 1st stage: 45 W @ 50 K
2nd stage: 1.5 W @ 4.2 K |
| Orientation | Any - Cooling Capacity Loss: Max 15% |
| Weight | Approximately 18.5 kg |
| Dimension | 180D x 294L x 557H (mm) |
| Maintenance Interval | 10,000 Hours |
| Flexline Length | 20m* |
| Flexline Weight | 7.5 kg per line |
| Compatible Compressor Unit Model | CSA-71A, F-50L, F-50H |
| * Buffer tanks + 6 m flexlines may optionally be substituted for the 20 m long lines. 6 m flexlines weigh 5 kg per line. |
Specifications subject to change without notice.
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