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COLD JET

Dry Ice Blast Cleaning
Dry Ice Production
Custom Cleaning Solutions
24 Hour Global Technical Support
World Class Customer Service
Financing and Rental Options



Dry Ice - Dry Ice Snow, Dry Ice Pellets, Dry Ice Nuggets, Dry Ice Slabs and Dry Ice Blocks


Cold Jet is dedicated to helping those companies whose business needs require dry ice realize the savings that can be achieved by making their own dry ice media; be it pellets or nuggets.

Why Buy Dry Ice - Make it!

Most of you buy your dry ice from an ice supplier on a daily, weekly, or monthly basis. You probably haven't even considered the possibility that you could be saving yourself time and money by making your own dry ice. You can make your own high-quality; high-density dry ice for a fraction of what is it currently costing you. How?

Consider the following questions:

  • Do you use large quantities of dry ice on a daily / weekly basis?
  • Are your dry ice deliveries consistently on time?
  • Is the quality of the dry ice you receive consistently excellent?
  • Do you always have the quantities and quality you need, WHEN you need it?
  • Do you often throw away old, unusable ice?

If you have answered yes to some or all of these questions, you should consider making your own dry ice. If you already have a Liquid CO2 supply, the process and set up is easy.

If you do not have a Liquid CO2 supply already in place, Cold Jet can perform a site visit to determine what you would need to do and how much it would cost. Cold Jet would then arrange for the installation and leasing, if required, to be completed through our trusted affiliates.

How Dry Ice is Made

Dry ice is made by taking pressurized Liquid CO2 (LCO2) and allowing it to expand into the natural atmosphere. This causes the LCO2 to expand into both a gas vapor and solid snow. The snow is then either compressed to form blocks or compressed and extruded to form pellets or nuggets. The equipment required to make the dry ice includes a Liquid CO2 tank and a Pelletizer or Block maker.

About CO2: Physical Properties

Carbon dioxide is a colourless gas and natural byproduct of breathing. Its density at 25 °C is 1.98 kg/m³ (0.123 lbs/f³), about 1.65 times that of air. This means that CO2 gas displaces oxygen (the CO2 will sink to the floor and the Oxygen will rise above it). It is important therefore to handle or store CO2 (whether solid or gas) in well-ventilated locations (liquid CO2 needs to be stored in sealed and pressurized vessels in order to prevent any phase change). As it is fully oxidized, it is not very reactive and, in particular, not flammable.

At temperatures below −78 °C, carbon dioxide changes directly from a gas to a white solid called dry ice through a process called deposition. Liquid carbon dioxide forms only at pressures above 5.1 atm; at atmospheric pressure, it passes directly between the solid phase and the gaseous phase in a process called sublimation. The chart below shows the phase changes of Carbon Dioxide.

Types of Dry Ice

Dry Ice Snow: looks like regular snow. It has a very high sublimation rate compared to pellets, nuggets and block or slabs. Dry Ice Snow requires less complex equipment to produce, but has very short shelf life.

Dry Ice Pellets: The standard 3 mm (1/8") blasting pellets look like rice. These high-density pellets are mainly used for dry ice blasting but they also are increasingly being used by some food processors who have found value in the slower sublimation rate and smaller size.

Dry Ice Nuggets: Nuggets typically range in sinze from 6 mm (1⁄4") to 19 mm (3⁄4") in diameter. Dry ice nuggets are typically used for packaging and shipping be it food or aluminum parts for Aerospace. High-density nuggets have a longer shelf-life and better transportability than "regular" dry ice nuggets as their increased mass takes longer to sublimate.

Dry Ice Slabs: The 19 mm (3/4") dry ice slab is predominantly used by the airline catering industry, though some other companies use them for shipping.

Dry Ice Blocks: Block dry ice is today being used for dry ice blasting (Cold Jet patented block-shaver technology) but historically, block dry ice was made for shipping/packaging or simply keeping things cool for a period of time. Standard block sizes vary from country to continent, but larger blocks are produced so that they may be cut to size if needed.

High-Density Pellets are created using specialized pelletizers that extrude a homogenous CO2 pellet as opposed to the "regular" pellets, which result from compacted snow. While the sublimation rate remains the same for High-density and regular ice, high-density ice will take longer to sublimate completely as there are more dry ice particles per square inch than regular ice. High-density dry ice has improved transportability and a longer shelf life than "regular" dry ice pellets or CO2 snow, as well as increased aggression for blasting applications.

Cold Jet Dry Ice

Cold Jet created specialized high-density Dry Ice Pelletizers in the mid 1980's to meet the needs of dry ice blasting customers as the 3 mm standard blasting pellet was not available in the marketplace. All Pelletizers come with Cold Jet's 12-month warranty and seal of approval. Their hydraulic oil included (food grade available upon request) and all are CE Marked.

Benefits of Cold Jet Dry Ice

Cold Jet created specialized high-density Dry Ice Pelletizers in the mid 1980's to meet the needs of dry ice blasting customers as the 3 mm standard blasting pellet was not available in the marketplace. All Pelletizers come with Cold Jet's 12-month warranty and seal of approval. Their hydraulic oil included (food grade available upon request) and all are CE Marked.

Quality: In addition to using only the highest quality materials in the construction of our pelletizers, Cold Jet has also technologically optimized its die plates maximizing their output quality and consistency. Cold Jet pelletizers consistently produce the highest density nuggets and pellets available today.

Reliability: Cold Jet's pelletizers have been scientifically engineered to offer the greatest level of reliability available and the highest density extruded dry ice obtainable - a 2006 Cold Jet customer survey confirms our success. Pelletizer reliability means minimal downtime to you.

Service: Cold Jet's highly dedicated Customer Service team is made up of industry experts with unique experiences and abilities. Their know-how is unmatched in the marketplace.


Dry Ice Snow


Dry Ice Pellets


Dry Ice Nuggets


Dry Ice Blocks
 

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