Italian 
The DOT Compressed Air Chillers by Il Disgelo are industrial systems designed for the controlled cooling of compressed air used in localised thermal treatments, industrial processes, test benches and low- or ultra-low-temperature applications.
The system uses previously dried compressed air and cools it before delivering it directly to the component or to the specific area involved in the process, providing a cold, clean and dry cooling medium.
This technology is particularly suitable for applications where the use of liquid heat-transfer fluids at very low temperatures is complex or undesirable. The use of compressed air avoids direct contact between the component and oils or other liquid fluids, reducing the risk of contamination and simplifying system management.
The range includes different configurations developed to meet varying requirements in terms of temperature, air flow rate and cooling capacity, with solutions capable of treating up to 700 l/min and reaching air temperatures down to approximately −85 °C.
Are designed to ensure:
- controlled generation of low- and ultra-low-temperature compressed air;
- direct delivery of cold air to the point of application;
- use of dry air to limit condensation and ice formation;
- high process cleanliness without contamination from liquid fluids;
- localised thermal treatment of components and devices;
- stable and repeatable operation;
- integration with test benches, automated systems and industrial equipment;
- reduced management, recovery and disposal of heat-transfer fluids;
- monitoring and control of the main operating parameters;
- system configuration according to the specific requirements of the application.
These systems are particularly suitable for automotive, e-mobility, aerospace, electronics, industrial components, R&D laboratories, test benches and validation processes.
The configurable design allows each system to be developed according to the required air temperature, flow rate, inlet-air dew point, operating pressure, cooling capacity and the specific characteristics of the process or component being treated.
- treated medium: compressed air;
- operation: direct compressed-air cooling;
- minimum temperature: configurable according to the model, down to approximately −85 °C;
- air flow rate: up to 700 l/min;
- inlet-air dew point: defined according to the required operating temperature and configuration;
- maximum air pressure: up to 8 bar;
- refrigeration architecture: single-stage or two-stage depending on the required performance;
- continuous operation: configurable according to operating conditions and duty cycle;
- control: dedicated industrial control system;
- safety: monitoring and protection of the refrigeration circuit and electrical system;
- configuration: customisable according to the application.
Available Models
| MODEL | AIR FLOW RATE | EXTERNAL DIMENSION | MIN TEMPERATURE | COMPRESSED AIR DEW POINT | MAX PRESSURE | CONFIGURATION |
| CH110 | 500 l/m | 500 × 470 × 1050 mm | < −85 °C | ≤ −70 °C | 8 bar | Two-stage |
| CH120 | 700 l/min | 500 × 470 × 1250 mm | < −85 °C | ≤ −70 °C | 8 bar | Two-stage |
| CH130 | 500 l/min | 500 × 470 × 1050 mm | −20 °C | ≤ −20 °C | 8 bar | Single-stage |
Configurable Data
The values shown represent reference technical configurations. Minimum temperature, air flow rate, required dew point, operating pressure, cooling capacity, refrigeration architecture and integration features are defined according to the process and the customer’s specific requirements.
