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RDK-408D2 4K Cryocooler Series

Standard Scope of Supply

RDK-408D2 Cold Head
F-50L/H, F-70L/H, FA-50L/H or FA-70L/H Compressor
Helium Gas Lines – 6 m (20 ft.)^1,2,3; 6-20 m (20-66 ft.)⁴; 6 m (20 ft.) with Buffer Tank⁴; or 10 m (33 ft.) [IDU] + 10 m (33 ft.), 20 m (66 ft.) or 30 m (99 ft.) [ODU]⁵
Cold Head Cable – 6-20 m (20-66 ft.)
Power Cable – 5 m (16.5 ft.)^1,4; 3-6 m (10-20 ft.)²; 2-8 m (6-27 ft.)³; or 5 m (16.5 ft.) [IDU] + 10 m (33 ft.), 20 m (66 ft.) or 30 m (99 ft.) [ODU]⁵
Hose Nipples¹
Tool Kit

1 With F-50
2 With F-70L
3 With F-70H
4 With FA-50
5 With FA-70

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About the RDK-408D2

The RDK-408D2 two-stage Gifford-McMahon Cryocooler is one of SHI’s mid-capacity 4K Cryocoolers, with a second-stage capacity of 1.0 W @ 4.2 K (50/60 Hz). It operates with both air and water-cooled helium compressors.

Applications

Specifications

Power Supply	50 Hz	60 Hz
2^nd Stage Capacity	1.0 W @ 4.2 K
1^st Stage Capacity	40 W @ 43 K	50 W @ 43 K
Minimum Temperature¹	<3.5 K
Cooldown Time to 4.2 K¹	<60 Minutes
Weight	18.0 kg (39.7 lbs.)
Dimensions (HxWxD)	557 x 180 x 294 mm (21.9 x 7.1 x 11.6 in.)
Maintenance	10,000 Hours
Regulatory Compliance	UL/CE, RoHS