Janis Research, cryogenics, cryostats

4 Kelvin
Closed Cycle Refrigerator Systems
from Janis and SHI

Sumitomo (SHI) 4 K Refrigerator

RDK-415D

1.5 Watt @ 4.2 K

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. Model RDK-415D Bare Cold Head, ~1.5 W @ 4.2 K, Janis Research
 
Characteristics:
Larger Capacity of 1.5 W @ 4.2 K
Orientation Independent
Push-button Operation
 
Applications:
Superconducting Magnet Cooling
Cryogenic Property Measurements
Cryopumps
Cryogenic Shield Cooling
Helium Recondensing
Laboratory Cryostats

COLD HEAD MODEL RDK-415D

Specifications
Refrigeration Cycle   Modified Gifford-McMahon
Refrigeration Capacity   50 Hz             1st stage:    35 W @ 50 K 
(Vertical Position)                       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
Compatible Compressor Unit Model CSA-71A
  F-50L
  F-50H

Specifications subject to change without notice.

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.
 

Table of Contents

Pages

Introduction 1
Sample in Vacuum Systems (SHI-4 series) 2, 3
Sample in Static Exchange Gas Systems (SHI-950 series) 4, 5
Application-specific Models - Neutron Scattering 6
Application-specific Models - Mössbauer Spectroscopy (SHI-850 series) 7, 8
Application-specific Models - Micro-manipulated Probe Station (CCR4-MMP series) 9
Application-specific Models - FTIR Optical Spectroscopy: Low Vibration Pulse Tube (PT-950-FTIR) 10
Custom Engineered and Specialized 4 K Closed Cycle Cryostat Systems 11
0.1 Watt @ 4.2 K Refrigerator from SHI (RDK-101D) 12, 13
0.4 Watt @ 4.2 K Refrigerator from SHI (RDK-305D) 14, 15
0.5 Watt @ 4.2 K Refrigerator from SHI (RDK-205D) 16, 17
1 Watt @ 4.2 K Refrigerator from SHI (RDK-408D2) 18
1.5 Watt @ 4.2 K Refrigerator from SHI (RDK-415D) 19
6 K Cryocooler from SHI (RDK-408S) 20, 21
0.1 Watt Compressor Unit from SHI (CNA-11) 22
0.4 Watt Compressor Units from SHI (CNA-31C, CNA-31D) 23
0.5 Watt Compressor Units from SHI (CKW-21) 24
1 Watt & 1.5 Watt Compressor Units from SHI (CSA-71 & F-50) 25
Pulse Tube Refrigerators 26
Next Page Janis Products Contact Janis Research Back to Janis Research Home Page

JANIS RESEARCH COMPANY, INC.
2 Jewel Drive, P.O. Box 696
Wilmington, MA 01887-0696 USA
TEL: +1-978-657-8750   FAX: +1-978-658-0349
E-Mail: sales@janis.com
Policies