Cryostats
Compact, modular cryostats that take your experiment from 4 K down to the millikelvin range. Built as reliable everyday instruments for university and research labs, without the price and complexity of large turnkey systems.
Dilution micro-cryostat insert
A complete dilution refrigerator in the form of a slim insert that fits a standard 35-litre transport helium dewar. No dedicated cryostat hall, no permanent installation: lower it into the dewar, pre-cool overnight and start measuring the next day. Versions with an optical window or a waveguide input are available for optical, infrared and millimetre-wave experiments.
Key parameters
| Minimum sample holder temperature | 0.04 K (40 mK) |
| Hold time below 0.1 K | 10–13 h per cycle |
| Sample temperature at 0.5 µW heat load | ≤ 0.1 K |
| Cooling of the mixer from 1.0 K to 0.1 K | approx. 30–40 min |
| Cooling to 4–5 K | 4–6 h |
| Minimum ³He bath temperature | 0.34 K |
| Helium used for pre-cooling | approx. 5 l |
| Operation on one transport dewar | up to 6 days |
| Insert mass / dewar with insert and LHe | 7.5 kg / ≤ 35 kg |
SilentCold™: cryogen-free and vibration-free
SilentCold™ combines the insert with a pulse-tube cryocooler, so no liquid helium is needed. During sensitive measurements a thermal switch disconnects the cold head, and a thermal storage block of sintered OFHC copper with copper granules keeps the 4.2 K stage stable. The result is a quiet measurement window with no mechanical or acoustic noise from the cooler.
- Cryogen-free operation with acoustic silence during measurements
- No heavy external vibration isolation needed
- Small helium inventory and high thermal reliability
Modular from 4 K to sub-kelvin
Start with a 4 K platform and add a ³He stage or a dilution unit when your experiment needs it. Every stage is open, documented and serviceable by your own team, so there are no mandatory service contracts.
Made for
- Experimental physics groups that need a dependable workhorse cryostat
- Teaching and student labs in low-temperature physics
- Fast cryogenic testing of detectors, sensors and quantum devices
- Optical, infrared and millimetre-wave experiments at sub-kelvin temperatures
Design, installation and support
We adapt each cryostat to your experiment: wiring, optical windows, waveguides and sample holders. We also handle installation and commissioning, training and after-sales service.
Tell us about your experiment and we will suggest a configuration.
