Products

4 Kelvin Closed Cycle Refrigerator Systems from Janis and SHI

Sumitomo (SHI) 4 K Refrigerator - RDK-408D2 (1 Watt @ 4.2 K)

Overview

These systems provide 1.0 Watt 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 6-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 1.0 Watt 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 6-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:

  • Refrigeration Capacity 1W @ 4.2 K
  • Orientation Independent
  • Push-button Operation

Please click here to download the RDK-408D2 drawing and typical load map (252 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.

Click here to contact Janis today!

Specifications

COLD HEAD MODEL RDK-408D2

Refrigeration Cycle Modified Gifford-McMahon
Refrigeration Capacity
(Vertical Position)
50/60 Hz 1st stage: 40/50 W @ 43 K
2nd stage: 1.0 W @ 4.2 K
Orientation Any - Capacity Loss: Max 15%
Weight Approximately 18 kg
Dimension 180W x 294L x 557H (mm)
Maintenance Interval 10,000 Hours
Flexline Length 6m
Flexline Weight 5 kg per line
Compatible Compressor Unit Model CSA-71A, F-70L, F-70H

Specifications subject to change without notice.

Janis

Cryogenic Research Equipment More>

Complete product list: