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Email: info@ascoco2.com

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Email: ascojet@ascoco2.com
Romanshorn, Switzerland

Pelletizer From

Dry Ice Reformer

Cold Jet’s dry ice production equipment produces the purest dry ice available. Our ice production equipment has been specially engineered to produce the highest density extruded dry ice available (pellet, nugget and block). Fully automated, one-button. 24/7 operation.

IceTech America, Inc.

IceTech offers the World’s fastest
Dry Ice Production equipment: 1-877-693-7073
Email: icetech-usa@icetechworld.com
www.icetechworld.com
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MANUFACTURING DRY ICE
Machines and Storage Containers

Dry ice manufacturing starts with liquid carbon dioxide held under pressure (300 psi) in bulk storage vessels. To begin making dry ice, the liquid C02, is sent through an expansion valve into an empty chamber where under normal atmospheric pressure it flashes into C02 gas. This change from liquid to gas causes the temperature to drop quickly. About 46% of the gas will freeze into dry ice snow. The rest of the C02 gas, is released into the atmosphere or recovered to be used again. The dry ice snow is then collected in a chamber where it is compressed into blocks,  or various sized pellets  to meet customers requirements. The denser the dry ice is, the longer it will last, the easier it is to handle, and the better it will perform when blast cleaning.

There are three major types of dry ice machines. The first is a dry ice block maker. It can produce a 220 pound solid block which is usually cut into four 55 pound blocks about 11 inches cubed. Newer block machines make a 50 pound or even a 10 pound block. Next there are machines that produce pellets from smaller than 1/8 inch for dry ice blast cleaning to 3/4 inch in diameter. Sometimes these machines include additional parts for blast cleaning. There are only about six major manufacturers in the world. Several additional companies manufacture small dry ice makers that connect to a CO2 tank and make 5 to 10 pound blocks of lower density dry ice.

Charles Hyde of CO2 Air Inc. developed a reformer machine to produce custom sizes of dry ice blocks with a pelletizer thus saving many band saw cuts and associated labor.

For a low cost alternative to making dry ice blocks you can make dry ice snow yourself with a CO2 tank and snowhorn. See example.  Although it is not very efficient, just open the Snow Horn into a nylon or burlap bag, and then pack the dry ice snow into a container. This dry ice has many uses: for ice chest coolers, quick freezing food products before shipping, shipping frozen products over night, science projects, and many other similar uses for dry ice that give  results comparable to traditional higher density blocks of dry ice. All this without expensive costs of a larger dry ice maker. It will also save on sublimation whenever dry ice is stored, as this produces dry ice only when needed. 

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