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4 K Closed Cycle Refrigerator Systems from Janis and SHI
Sumitomo (SHI) Compressor Units - CKW-21A (0.5-Watt)
Overview
The CKW-21A compressor is compatible with the 0.5-Watt cold head system (Model RDK-205D). It is equipped with casters for ease of transport.
Standard Configuration
The CKW-21A compressor is compatible with the 0.5-Watt cold head system (Model RDK-205D). It is equipped with casters for ease of transport.

CKW-21A Mechanical Drawing
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Accessories |
| Input Power Cable | 5-Meter |
| Flexible Gas Line | 10-Meter Supply & Return |
| Cold Head Power Cable | 6-Meter |
| Water Connector | 3/8 NPT Male
For 1/2 (ID) Hose |
Specifications
COMPRESSOR UNIT MODEL CKW-21A
| Cooling | Water |
| Min. Flow Rate | 200 liters/hour |
| Temperature Range | 4-28 °C |
| Electrical Power | AC 200V, 3 Phase |
| Electrical Power Consumption | Steady | Maximum |
| 50 Hz | 2.8 kW | 3.3 kW |
| 60 Hz | 3.4 kW | 3.7 kW |
| Weight | Approximately 100 kg |
| Dimension | 400D x 450L x 461H (mm) |
Specifications are subject to change without notice.
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