RDE-412D4两级Gifford-McMahon低温冷却器是SHI公司中容量4K低温冷却器之一，第二级冷却能力为1.25瓦@4.2开尔文（50/60赫兹）。它既可以使用空气冷却的氦压缩机，也可以使用水冷却的氦压缩机。

RDE-412D4 4K Cryocooler Series

Standard Scope of Supply

• RDE-412D4 Cold Head
• F-40L/H, F-50L/H, F-50SL/SH, F-70L/H, FA-40L/H, FA-50L/H or FA-50SL/SH Compressor
• Helium Gas Lines – 20 m (65 ft.)1,3,4,5 or 6 m (20 ft.) with Buffer Tank2,3
• Cold Head Cable – 20 m (65 ft.)1 or 6-20 m (20-66 ft.)2,3,4,5
• Power Cable – 3 m (10 ft.)1, 5 m (16.5 ft.)2,3, 3-6 m (10-20 ft.)4 or 2-8 m (6-27 ft.)5
• Hose Nipples1,2
• Tool Kit

1 With F-40 and FA-40
2 With F-50
3 With FA-50 and FA-50S
4 With F-70L
5 With F-70H

Specifications Power Supply 50 Hz 60 Hz 2nd Stage Capacity1 1.25 W @ 4.2 K 1st Stage Capacity1 53 W @ 43 K 60 W @ 43 K Minimum Temperature2 <3.5 K Cooldown Time to 4.2 K2 <60 Minutes Weight 20 kg (44.1 lbs.) Dimensions (HxWxD) 554 x 180 x 306 mm (21.8 x 7.1 x 12.0 in.) Maintenance 10,000 Hours Regulatory Compliance UL/CE, RoHS