CryoCooler – K90 Series
The K90 series represents a class of high-efficiency cryocoolers for vibration-sensitive cooling applications in compact vacuum chambers. The temperature range of the K90 series is between 90K [-183°C] and 75K [-198°C]. The standardized product range of the K90 series includes several power classes up to a cooling capacity of 300W. Customization with much higher cooling capacities is possible. The cryo-compressors impress with incredibly low noise emissions and extremely small compressor units, which can be operated at high energy efficiency in any laboratory.
Our cold-heads guarantee an ultra-compact and almost vibration-free cryogenic source in the vacuum chamber with the lowest vibration amplitudes down to the sub-nanometer range. Thanks to these qualities, CryoSpectra’s CryoCooler enables cutting-edge applications such as phase-stabilized [CEP], cryogenically cooled femtosecond pulse laser amplifiers at the highest level. We offer the standard cold-head units in the compact CFF-40 flange variant or KF-50 flange variant. These are thus ideally suited for all demanding vacuum applications up to the UHV range.
Customized flange systems and electrical vacuum feedthroughs for sensors, etc. are available upon request.
K90 Series
The compact compressor units are available as water-cooled and air-cooled units. These provide virtually maintenance-free operation, and final temperatures can be reached within 20 minutes. All cold-heads are plane polished and gold plated as standard, in order to ensure the highest quality standards regarding heat transfer, reflection and oxidation protection. These features make our systems ideally suited for all optical and other research and industrial applications.
Cold-head unit advantages
- Ultra-low vibration down to the sub-nm range
- Low cold-head weight <0.65kg [1.43lbs]
- Compact design with high cooling power
- Orientation-independent cooling performance
- No maintenance of the cold-head unit required
Compressor unit advantages
- High cooling capacities up to 300W
- Higher capacities on request
- Low maintenance of the compressor unit
- Quiete operation directly in the laboratory
- High energy efficiency
Typical applications
- Solid-state lasers
- Sensor technology
- Quantum optics
- Infrared detectors
- Spectroscopy
List of our standard cryocoolers [other versions and different power supplies available on request]:
| Model | Compressor unit | Cooling capacity | Idle temperature | Cool down time | Cold-head weight [KF-50/CFF-40] | Power consumption [50Hz/60Hz, typical] | Cooling water flow | Sound emission |
|---|---|---|---|---|---|---|---|---|
| K90075W | CU700 | 75W@90K | ≤75K | 20 minutes | 0.45kg [0.99lb] 0.65kg [1.43lbs] | 1 Phase, 208-240V AC, 2.3kW |
≥5liters/minutes ≥1.3gal/minutes |
58dB(A)@1m |
| K90100W | CU700 | 100W@90K | ≤79K | 20 minutes | 0.45kg [0.99lb] 0.65kg [1.43lbs] | 1 Phase, 208-240V AC, 2.6kW |
≥5liters/minutes ≥1.3gal/minutes |
58dB(A)@1m |
| K90150W | CU700 | 150W@90K | ≤79K | 20 minutes | 0.45kg [0.99lb] 0.65kg [1.43lbs] | 3 Phasen, 380-420V AC, 2.8kW |
≥7liters/minutes ≥1.9gal/minutes |
60dB(A)@1m |
| K90200W | CU900 | 200W@90K | ≤79K | 20 minutes | 0.45kg [0.99lb] 0.65kg [1.43lbs] | 3 Phasen, 380-420V AC, 4.2kW |
≥8liters/minutes ≥2.1gal/minutes |
63dB(A)@1m |
| K90300W | CU900 | 300W@90K | ≤80K | 20 minutes | 0.45kg [0.99lb] 0.65kg [1.43lbs] | 3 Phasen, 380-420V AC, 5.1kW |
≥9liters/minutes ≥2.4gal/minutes |
63dB(A)@1m |
CU700 – Dimension: height [0.58m/22.83in] x width [0.74m/29.13in] x depth [0.70m/27.56in], cold-line length 3.00m/118.11in
CU900 – Dimension: height [0.58m/22.83in] x width [0.88m/34.64in] x depth [0.90m/35.43in], cold-line length 3.00m/118.11in
All data at 12°C/53.6°F water temperature
Why our CryoCoolers?
- Ultra-low-vibration cold-heads
- Wide range of high-performance cryocoolers with power densities up to 200W/cm²
- Customized cryocoolers – from small batch to OEM applications
- Orientation-independent cooling performance for all installation scenarios
