The first is the direct acceleration (single-pipe) system: this system introduces dry ice particles into the air stream at the funnel instead of at the nozzle opening, which allows the dry ice to travel at a faster speed of 900ft/s (1ft=30.48cm) Detach from the nozzle opening for better cleaning results. If you don't need such a large amount of cleaning energy, you only need to lower the pressure of the compressed air to reduce the ejection degree of the dry ice particles.

The second is the Venturi system (dual-pipe system): This system is at the nozzle opening, which sucks fine dry ice particles into the airflow through vacuum, and the nozzle opening is facing the mold surface. This system is less costly than a single-pipe system, but it is difficult to remove heavy residue and dirt.

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Xiamen Hefengli Dry Ice Decontamination Equipment Co., Ltd., referred to as Hefengli Dry Ice, was established in 1999. It is a professional enterprise dedicated to the application of dry ice in China. It has formed a complete industrial chain of R&D, manufacturing, sales and after-sales. The company's brand is HORECO2, and Hefengli has a doctoral-level R&D team. Its main products include Dry ice granulator & block making machine, Dry ice cleaning machine, dry ice automatic production line, dry ice intelligent cleaning, supply of dry ice of various specifications, dry ice Cleaning service and leasing, Dry ice insulation box, dry ice equipment accessories and related intelligent products; 18 dry ice manufacturing factories have been deployed to provide a complete dry ice distribution service network and provide customers with a cost-effective experience.