Astronomy and space

Improving first stage performance

December 7, 2017

In keeping with our relentless drive for continuous product innovation, Cryomech recently improved the first stage performance of our 1W PTR, the PT410.

PT410 with CPA289C Compressor:

From – 1.0W @ 4.2K with 35W @ 45K
To – 1.0W @ 4.2K with 40W @ 45K 

PT410-RM with CPA289C Compressor

From – 0.9W @ 4.2K with 31.5W @ 45K
To – 0.9W @ 4.2K with 36W @ 45K



Cryomech also developed the PT420. As the world’s largest 4K Pulse Tube Cryorefrigerator, the PT420 has first and second stage capacities unmatched by any other product available.

Key features include:

  • Cooling capacity @ 50 and 60 Hz: 2.0W @ 4.2K with 55W @ 45K
  • Base temperature ≤ 2.8 K with no load
  • Power consumption 12.5 kW / 11.4 kW


Like all other Cryomech Pulse Tube Cryorefrigerators, both the PT410 and PT420 are available with a remote motor option for vibration-sensitive applications, has an extended mean time between maintenance compared to Gifford-McMahon Cryorefrigerators, and is fully customizable for any application!

Learn more about Cryomech’s commitment
to innovation and latest products

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