AUTOOL HTS709 Automotive Dry Ice Cleaning Machine

It shows inlet and outlet pressure separately and adds adjustable ice delivery with moisture/anti-clumping support.

Use 3 mm pellets. Up to 5 mm is supported when the nozzle and setup are confirmed.

HTS709 requires 90 PSI or more for proper operation. The suggested setup is a 1.5m³/min compressor with a 300L air tank. A compressor with dehumidification function is recommended because it can help prevent dry ice from clumping and reduce moisture-related pipeline problems.

Ask AUTOOL to confirm the voltage, phase, plug and grounding for the selected regional HTS709 unit before ordering.

No. Dry ice sublimates on impact and leaves no blasting media residue, water residue, or chemical residue. This reduces cleanup, secondary waste disposal, and preparation work such as masking delicate sensors or wrapping electronic components.

• It leaves no solid dry-ice media, but removed contamination still needs collection and CO₂ requires ventilation.

No. Material, coating, nozzle, distance, pressure, airflow and operator procedure still control suitability.

Dry ice blasting, also called dry ice cleaning, is an environmentally sustainable cleaning and surface preparation technique. Like sandblasting, grit blasting, and soda blasting, it uses a pressurized air stream to clean surfaces. Instead of abrasive media, it uses recycled CO₂ pellets that blast at high speed and sublimate on impact to remove dirt and contaminants.

• The process is non-abrasive, non-conductive, non-flammable, non-toxic, chemical-free, water-free, and does not create a secondary waste stream. When dry ice hits the surface, it changes from solid CO₂ to gaseous CO₂.

• Impact: Compressed air accelerates soft dry ice through the nozzle.
• Cold: About -109°F / -78.9°C makes contaminants brittle and weakens their bond.
• Expansion: Pellets sublimate on impact, expand, and help lift contaminants from the surface.

Dry ice blasting can clean equipment in place with little or no disassembly. It is a dry cleaning method that uses no water or chemicals, helps reduce downtime, produces no secondary waste, improves cleaning quality, reduces equipment wear, and provides an environmentally sustainable cleaning method.

In addition to the dry ice blaster, the system needs blasting hose, air hose, nozzles, tips, a compressed air source, a power supply, and a dry ice supply. If using a portable diesel compressor as the air source, an aftercooler may be useful because it removes most of the moisture from the system and cools the air closer to ambient temperature depending on humidity level.

Most users purchase dry ice pellets or blocks from industrial gas suppliers, welding supply companies, and regional or local suppliers. Dry ice can be purchased as needed, or regular deliveries can be arranged. For manufacturers that regularly require large quantities of dry ice or operate in remote areas, a dry ice production machine may be worth considering.

Use proper ventilation and appropriate personal protective equipment when handling solid dry ice and operating a dry ice blaster. Wear earplugs, safety glasses, gloves, and closed-toe safety shoes. Avoid direct skin contact with dry ice because extremely low temperatures can cause cold burns.

Dry ice blasting can remove failing or weakly bonded paint, but its mild-to-medium strength may not always be enough. Paint adhesion, paint type, and primer affect the result. In some cases, even high-pressure blasting can be slow or ineffective.

Dry ice blasting can remove loosely adhered rust, surface rust, oxidation, and salt, but it will not remove deeply adhered rust or pitting oxidation. Because dry ice is non-abrasive, it is not suitable for creating contoured or white metal finishes. Deep rust still requires physical grinding or other methods.

When following IAQA standards, dry ice blasting can remove 99.9% of mold spores faster than traditional cleaning methods. It produces no secondary waste, reduces mold remediation time, uses no chemicals, and can deodorize the affected area.

Choose HTS705 if you need a basic portable model with 5kg dry ice capacity and a flat nozzle included by default. Choose HTS708 if you need a standard professional model with 7.5kg dry ice capacity for regular workshop use. Choose HTS709 if you need the upgraded flagship model with dual pressure gauges for more precise control and more complex cleaning work.

Yes. The standard blasting hose is 3m. A longer hose can be customized up to 5m, with extra fees. Contact AUTOOL Store before ordering for customization details.