CO2 snow jet cleaning is a dry, residue-free cleaning process in which dry ice snow is accelerated onto the surface to be cleaned by compressed air. Different mechanisms work, which contribute differently to the cleaning effect depending on the type of contamination and the material to be cleaned. The dry ice snow with a grain size of 1-100µm is formed only at the nozzle tip and has no wearing contact with nozzle components.
The following mechanisms act on the surface of the component to be cleaned:
Our technology works without impact on the material and is therefore wear-free.
Our nozzle does not drip – the expansion of CO2, and formation of CO2 snow takes place outside the nozzle, so it does not cool down.
CO2 snow jet cleaning is a cold process; however, cooling of the component can be adjusted to a favorable ratio of the combined cold (CO2 snow) and warmer (compressed air) mediums. In addition, the compressed air can be heated with our systems to further optimize that ratio.
In principle, the process is suitable for all materials as the CO2 snow jet cleaning is not abrasive.
If you are not sure whether our process is suitable for your products, please contact us – we can certainly help you.
In principle, the process is suitable for all materials, as CO2 snow jet cleaning is not abrasive. It is a dry and gentle cleaning, process, therefore, it is ideally suited for cleaning sensitive and hygroscopic or open-pored surfaces.
Removal of particulate contamination, e.g. for compliance with technical cleanliness requirements
Filmic soiling e.g. before joining processes such as welding / gluing / soldering / bonding
To activate the cleaned surfaces, you need a downstream process such as flaming or plasma activation.
You do not have to dry the parts, as the process is dry.
Our CO2 cleaning systems are designed for integration into automation, to the demands of state-of-the-art adaptive production lines (Industry 4.0)
Dry (to -20°C pressure dew point) and oil-free compressed air and liquid phase CO2 (carbon dioxide) in technical quality.
Liquid CO2 is available from many gas suppliers – if you already purchase gases, talk to your supplier about purchasing liquid CO2. Delivery in gas cylinders and gas cylinder bundles is common; if you have a large demand, your gas supplier will provide you with a bulk tank.
There are 3 possibilities to test our process on your products:
We can provide you with mobile snow blasting equipment for a fee for testing your own applications – our sales team will be happy to help you with an offer.
During transport, the penetration of water into the container should be avoided. Only equipment suitable for pressure and temperature should be used. In addition, the specifications and instructions of the gas supplier should be observed.
The gas cylinders should be stored in a well-ventilated place at a temperature of less than 50°C and secured against falling over.