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77K Coldhead Nitrogen Liquefaction Cryocooler KDE400SA (77K)

77K Coldhead Nitrogen Liquefaction Cryocooler KDE400SA (77K)
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CategoriesCryocooler
BrandScala
ModelKDE400SA
ApplicationNitrogen Liquefaction
Cooling Capacity (50Hz)54W 40K
Lowest Temperature<30K
Power Consumption (50Hz)<7.2kW
Cooling TypeWater Cold
Cool down Time (1st stage)<40K (30min)
Weight16.8 kg
FOB portShanghai, Ningbo, Guangzhou, Qingdao
Terms of PaymentT/T
Detail Information
The Gifford-McMahon (GM) cryocooler was invented by William Gifford and Howard McMahon. Its refrigeration principle is based on the adiabatic expansion of helium gas. The main components of a GM cryocooler include a cold head, helium transfer hoses, and a helium compressor.

Owing to its high reliability, long service life, and ease of operation and control, the GM cryocooler has become the most widely industrialized cryogenic refrigeration technology. It is extensively used in applications such as superconducting equipment, medical imaging systems, semiconductor manufacturing, and scientific research.

For many years, GM cryocoolers were entirely dependent on technology and products from USA and Japan. This Chinese originated GM cryocooler is gaining widespread acceptance worldwide and becoming an attractive alternative for cryogenic refrigeration solution due to its high reliability, competitive pricing, and rapid service response.

Specifications


Model No.
KDE400SA (77K)
Lowest Temperature
< 30K
Cooling Capacity (50Hz)
54W @  40K
Cool down Time
30min (< 40K)
Weight
Coldhead
Compressor
16.8 kg
118 kg
Compatible Helium Compressor
KDC6000V
Power Consumption (50Hz)
Steady
Cooldown
6.5kW
7.2kW
Cooling Type
Water-cold
Cooling Water Requirement
> 7 L/min
Standard Flexline
20A×20m
Maintenance Interval
Coldhead
18 month
Warranty Period
1 Year

Working & Storage Conditions


Item
Operating
Storage
Ambient Temperature
4~40 ℃
-20~65 ℃
Relative Humidity
30%~70%
0%~90%
(Requiring No-condensing)
Ambient atmospheric pressure
70kPa~110kPa
20kPa~110kPa

GA Drawing

GA_Drawing KD400SA_GM cryocooler_GM Coldhead_cryocooler_KD400SA 77K

Tipical Load Map

Load map_GM cryocooler_GM Coldhead_cryocooler_KD400SA 77K
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