Coolstar Two Stage Coldheads

Delivering base temperatures as low as 10 K

Our two stage coldheads are part of the GM Coolstar range, the only commercially available range of Gifford-McMahon Cryocoolers offering complete control of the Coldhead speed. By using a variable speed stepper motor and proprietary control software, every cooler in the range can be operated at speeds of 40-90 rpm.

Available in either 2/9 and 6/30 models, both deliver base temperatures as low as 10 K. These are some of the smallest GM coldheads available, and can be installed in systems where space is at a premium.

Features & Tech Specs

Our two stage coldheads are ideal for use wherever you need a compact and variable speed head and in applications from laboratory cryostats to radio astronomy. The main features include:

  • Prolonged service intervals: Decreased Coldhead speed during low demand periods reduces wear on Coldhead seals.
  • Cooling power control: Varying the cycle rate second-by-second offers complete control for integration into OEM systems.
  • Fast cooldown time: Increased Coldhead speed makes it possible to reach 20 K in as little as 16 minutes.

Technical Specifications

Cooling Power
Coldhead Motor Speed Control
Weights and dimensions

Complete Control

Our Coolstar systems give you complete control of the coldhead speed. By using a variable speed stepper motor, combined with proprietary control software, every Cryocooler in the range can be operated at speeds from 40- 90 rpm. This offers major advantages to the user including:

Prolonged service intervals

Decreased coldhead speed during low demand periods reduces wear on coldhead seals.

Cooling power control

Varying the cycle rate second-by-second offers increased control for integration into cryostats or custom designs.

Fast cooldown time

Increased coldhead speed makes it possible to reach 20 K in as little as 16 minutes (depending on Coldhead).

The compact size, range of cooling power and orientation independence of the Coolstar range lends itself to a wide
range of applications including:

  • shield coolers
  • laboratory cryostats
  • radio astronomy
  • custom cryostat design
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Our Coolstar range is the only commercially available range of Gifford-McMahon Cryocoolers offering complete control of the Coldhead speed, fast cooling, long service intervals and easy OEM integration.

For the most versatile and cost-effective Gifford McMahon (GM) Cryocoolers available, talk to us today.

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