Dry Ice Blasting Machines

Dry ice blasting: explanations of the process, steps…

The dry ice cleaning technique uses dry ice (-78.5 °C) as a cleaning agent.

The format used is pellets with a diameter of 3 mm (in the shape of sticks), and in most cases, the ice used is food grade.
You can get this precious media from gas companies such as Air Liquide, Messer, Sol France, Yara… or with one of their partners.

How does it work? Dry ice is placed inside the hopper or tank of a blaster.

This is then mixed with the compressed air using a honeycomb tray: by rotating the tray, the solid CO₂ pellets are faced with a compressed airflow. The resulting mixture is then conveyed through a firing pipe.

The ice projection on the surface to be cleaned is carried out using a gun and a spray nozzle.

The source of the compressed air may be either:
– an industrial network,
– a network of workshops,
– an electric or thermal construction compressor

The interest in cleaning by cryonics lies in the triple action of dry ice, making it a real solution for removing new contaminants.

By clicking on this link everything you need to know about dry ice cleaning, you will discover a wealth of information about this process!

The first step is the mechanical shock or mechanical effect caused by the dry ice, projected at high speed on the pollution: dry ice creates cracks on the contaminant (varnish, paint, glue …).

This leads to a weakening of pollution. This is made possible thanks to the kinetic energy stored by the pellets during their spraying: Ec= 1/2 m (weight of CO₂) x V² (projection speed)

The second stage is the thermal shock or thermal effect, also known as the “thermal differential”. Dry ice at -78.5°C cools the pollution. This difference in the temperature of the pollution and the support retracts the latter without damaging the surface or substrate.

The third step is sublimation or change of state: passage from the solid state to the gaseous state of solid CO₂ into GAS CO₂, in a ratio of 1 to 700. The dirt is removed by the breath!

Dry ice cleaning: an ecological treatment that does not involve the reprocessing of secondary waste

Dry ice blasting is truly an ecological cleaning technique. Indeed, Unlike sandblasting, airbrushing, hydroscrubbing or high-pressure cleaning, it does not generate secondary waste to be reprocessed.

The cryogenic cleaning technique causes the removed dirt to fall by gravity. As a rule, a sweep or using vacuum cleaners (or suction) is enough!

The costs of reprocessing disappear.
Cryogenic cleaning is the professional cleaning par excellence!

For the degreasing of your surfaces, or to remove all types of dirt: ink, varnish, glue, etc. or to remove food residues, this process is ideal.

Without chemicals and cleaning products, to ensure the exemplary cleanliness of your production processes, Cryoblaster® dry ice cleaning equipment allows, thanks to the projection of dry ice (carbon dioxide) pellets, the dry cleaning of the surfaces to be treated, no oxidation possible, dry ice does not contain water.

Carbon dioxide in solid form (compacted dry ice) is an excellent low-temperature degreaser.

For cleaning in the food industry, for post-disaster intervention or decontamination, or for treating surfaces with non-abrasive CO₂ pellets or beads, Cryoblaster® dry ice blasting machines are essential tools for service providers and manufacturers.