Janis Research, cryogenics, cryostats

Daikin GM-JT Cryocoolers
from Janis and SHI

Sumitomo (SHI) Cryocoolers

CG304SC

1 Watt @ 4.3 K

CG308SC

3 Watt @ 4.3 K

CG310SC 5 Watt @ 4.3 K

Click here for larger view of Daikin GM-JT bare coldhead, Gifford-McMahon Joule-Thomson, cryocoolers, Janis Research, SHI

Click here for larger view of Daikin GM-JT coldhead with cryostat, Gifford-McMahon Joule-Thomson, cryocoolers, Janis Research, SHI

Bare Coldhead

Coldhead with Cryostat

Click here for larger view of Water-cooled Compressor for Daikin GM-JT cryocooler, Janis Research, SHI, cryogenics

 

Water-cooled Compressor

 

Sumitomo acquired the cryocooler and cryopump business of the Daikin company in 2005.  One of the cryocooler products acquired was the line of Gifford-McMahon (GM) refrigerators with a Joule-Thomson (JT) third stage, that were primarily designed for radiotelescope astronomers.  These three stage cryocoolers have high cooling power at 4.3 K as well as very stable temperatures at the third stage.

Full specifications are listed below.  Contact Janis today for further details as well as pricing information.

Click the links below to view mechanical drawings of the 3-stage Daikin GM-JT cryocoolers.  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.

SPECIFICATIONS

Cold Head Model

CG304SC CG308SC CG310SC
Refrigeration Cycle

Gifford-McMahon (GM) cycle and Joule-Thomson (JT) refrigerator

Cooling Capacity 1.0 W / 1.2 W @ 4.3 K
(50 Hz / 60 Hz)
3.0 W / 3.5 W @ 4.3 K
(50 Hz / 60 Hz)
4.2 W / 5.0 W @ 4.3 K
(50 Hz / 60 Hz)
Ambient Temperature Range 4 to 38°C
Dimension (mm) Ø 235 x 589 L Ø 300 x 686 L Ø 360 x 789 L
Weight 18.0 kg 35.0 kg 50.0 kg
Refrigeration Unit V304SC V308SC V316SC
Compatible Compressor Unit Model U304CWA U308CWA

Specifications subject to change without notice.  

SPECIFICATIONS

Compressor Unit Model

U304CWA U308CWA
Cooling Water
Ambient Operating Temperature 5 to 35°C
Electrical Power AC200V, 3 phase
Electrical Power Consumption 4.5 kW (50 Hz) 5.1 kW (50 Hz)
5.4 kW (60 Hz) 6.4 kW (60 Hz)
Weight Approximately 205 kg Approximately 220 kg
Dimension (mm) 700W x 520D x 1,095H

Specifications subject to change without notice.  

 

 
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