- 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.
Two stage coldheads
Compact variable-speed GM coolers
The Coolstar two stage coldheads comprise the 2/9 and 6/30 models, both delivering 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. Coolstar is 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.
The Coolstar range of coldheads may be used wherever a compact and variable speed head is desirable, in applications from laboratory cryostats to radio astronomy.