Products
4 Kelvin Closed Cycle Refrigerator Systems from Janis and SHI
Sumitomo (SHI) 4 K Refrigerator - RDK-101D (0.1 Watt @ 4.2 K)
Overview

These systems provide 0.1 Watts of cooling at a temperature of 4.2 K at the second stage and can reach a minimum temperature of about 3.0 K (with no parasitic or experimental heat loads). The 0.1-Watt systems employ a smaller compressor and cold head than the 1-Watt systems. The compressor is available in an air-cooled version only, in conjunction with 3-meter long flexible gas lines.
Standard Configuration
These systems provide 0.1 Watts of cooling at a temperature of 4.2 K at the second stage and can reach a minimum temperature of about 3.0 K (with no parasitic or experimental heat loads). The 0.1-Watt systems employ a smaller compressor and cold head than the 1-Watt systems. The compressor is available in an air-cooled version only, in conjunction with 3-meter long flexible gas lines. (Please see our Compressor page for more information.)
Characteristics :
- Refrigeration Capacity 0.1 W @ 4.2 K
- Orientation Independent
- Push-button Operation
Applications:
- Laboratory Cryostats
- Cryogenic Property Measurements
- Cryopumps
- Optical Studies
- Magnetic Studies
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Specifications
COLD HEAD MODEL RDK-101D
| Refrigeration Cycle | Modified Gifford-McMahon |
Refrigeration Capacity (Vertical Position) | 50 Hz | 1st stage: 3 W @ 60 K 2nd stage: 0.1 W @ 4.2 K |
| 60 Hz | 1st stage: 5 W @ 60 K 2nd stage: 0.1 W @ 4.2 K |
| Orientation | Any - Capacity Loss: Max 30% |
| Weight | Approximately 7.2 kg |
| Dimension | 130D x 226L x 442H (mm) |
| Cooldown Time (to 4.2 K) | <150 minutes |
| Compatible Compressor Unit Model | CNA-11C |
Specifications subject to change without notice.
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