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Why Dry Ice Blasting? Answers from Cold Jet

Cold Jet is celebrating 20 years as the leader in dry ice blasting and dry ice production technology and would like to recognize and thank its customers, employees, suppliers, vendors, and distributors. Cold Jet wants to highlight its accomplishments and share with you its vision for the future.

Cold Jet is a global company rich with engineering excellence, customer service and a value added belief. By establishing global facilities, Cold Jet has positioned itself to be there when you need us where ever you are.

Cold Jet believes in the philosophy of long-term customer partnerships. We are committed to delivering on our reputation and promises and have a track record to prove it. Over the past 20 years, Cold Jet has provided solutions to thousands of customers worldwide.

Reasons why you should partner with Cold Jet as your single source for Dry Ice blast cleaning and dry ice production.

20 years of Innovation

Since 1986, Cold Jet has been the leader in dry ice technology and setting the industry standards with new product and advancing the technology.

Largest installed customer base.

Because of Cold Jet's diverse and flexible product line, we have been able to provide solutions to thousands of customers worldwide. These customers are realizing the benefit of their investment with Cold Jet through their savings in time and money.

The complete solution for your specific application

Whether its rubber mould cleaning, building restoration, general maintenance, printing press cleaning or any one of the applications dry ice blasting works on, Cold Jet offers a complete and total solution for your cleaning need. We take this approach because it enables us to assure you complete satisfaction; we take care of everything from the design of the dry ice equipment and its components to the application technology.

Global Support

With offices in the Australia, the United States and Europe and global distribution channels, we can guarantee "on-time" delivery of parts, equipment maintenance and repair capability. Each facility is manned with their own Service Technicians enabling us to react faster to your needs because we are just around the corner.

Technical Support 24-hours a day

Emergency and late night equipment troubleshooting are not a problem for us. Cold Jet technical service representatives not only know our equipment but know what your specific application calls for and how you can best use your Cold Jet system. This gives you the confidence in knowing that your operation won't come to a halt if something unforeseen occurs.

Application Engineering Support

Cold Jet has over 10 Engineers who are experienced in the dry ice technology and applications for many different industries. They take the time to fully understand your unique needs and design a solution to meet your requirements. Let us sit down with you and spend the time necessary to find the answer, down to the smallest details, that can mean the difference between you saving time and money or not.

Widest Selection of Nozzle Technology

Cleaning applications come in a wide range of plant settings, environments, and application constraints. One size does not fit all. Within nozzle technology, there is a great deal of engineering science. That's why Cold jet is the only company which employs aerospace engineers whose main job is to produce the best blast nozzles in the industry. Cold Jet helps you get more work out of your existing plant air systems, increasing aggression to clean any surface and lower blasting noise levels than any one else. Cold Jet has created the best blast tools available to enable you to effectively and efficiently meet your cleaning needs.

Dry Ice

To make sure that the dry ice blasting process works appropriately and effectively, Cold Jet has invested in understanding the art of manufacturing dry ice and continues to make advances in this area today. Over the years, we have made several technological advances in our Pelletizers that have given us the ability to manufacture dry ice pellets that are denser and of better quality than commonly found with traditional dry ice suppliers.

Lower Cost of Ownership

We realize that air and ice are can be an expensive addition to the dry ice blast cleaning process so Cold Jet dry ice blast systems are designed to use less air, less ice and half the manpower to operate. Because of these reductions, Cold Jet's systems have a much lower cost of ownership than any other dry ice blast system on the market.

Widest Variety of equipment on the market

Our blast systems range from large in-place fully engineered applications to those that can fit into the trunk of a small car. So whether you have a dedicated blast site at your plant or need to move from job site to job site, we have the system for you. We also offer dry ice production equipment that makes the dry ice for you. If you have an application that requires more media usage, we can show you how it may be more economically sound to consider owning your own production equipment.

Solutions for all budgets

Cold Jet realizes that not all companies are the same nor are the budgets. With this in mind, Cold Jet understands that your needs and allocations my not necessitate or allow for a $40,000 investment. With this in mind, Cold Jet has blast systems ranging from $10,000 up to $50,000 and all of these systems outperform competitive models. Let us work with you to find the right system for your budget and your need.

Financing and rental options

We realize that not all Companies needs are the same and a capital purchase is not always necessary, we can provide rent-to-own, short or long term rentals, and even used equipment as alternative options.

Superior Ergonomics

Through years of application experience and superior engineering and design improvements made possible by working closely with our customers, our blast cleaning systems are built with our customers' needs in mind. Our engineering advancements have allowed hose diameters and nozzle weights to decrease while performance has dramatically improved; all these improvements making the cleaning job easier.

Environmental answer to hazardous cleaning - Cold Jet

Dry ice is a safe, non-toxic cleaning media that meets USDA, FDA and EPA guidelines. On impact, the dry ice does the work, sublimates, and simply returns to atmosphere. All that remains for disposal is the contaminant that was removed.

Clean your equipment in place

Cold Jet dry ice blast systems are designed for quick set-up and ease of use. Imagine the time and money you can save by reducing downtime and increasing your production.

 


CO2 Blasting Has Been Successfully Used In Many different Industrial Applications

Click here to see how Dry Ice Blasting works
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Cold Jet blasting is an effective and cost-effective way for many industries to maximize production capability and quality. Blasting is used to manage production residues, release agents and contaminants; it is successful in stripping paints, oils and biofilms; and is used for many general cleaning applications. This dry blasting process is non-abrasive, nonflammable and nonconductive. Cold Jet systems may therefore be used without damaging active electrical or mechanical parts or creating fire hazards.

Cold Jet blasting uses compressed air to accelerate frozen carbon dioxide (CO2) "dry ice" pellets to a high velocity. A compressed air supply of 80 PSI/50 scfm can be used in this process. Dry ice pellets can be made on-site or supplied. Pellets are made from food grade carbon dioxide that has been specifically approved by the FDA, the EPA and the USDA.

Carbon dioxide is a non-poisonous, liquefied gas, which is both inexpensive and easily stored at work sites.

How does CO2 Blasting Work?

CO2 blasting works because of three primary factors: pellet kinetic energy, thermal shock effect and thermal-kinetic effect. Cold Jet optimizes blast performance for each application by combining these forces and adjusting:

  • compressed air pressure
  • blast nozzle type (velocity distribution)
  • CO2 pellet size and density
  • pellet mass rate and flux density (particles per unit area per second)


Pellet Kinetic Energy

The Cold Jet process incorporates high velocity (supersonic) nozzles for surface preparation and coating removal applications. Since kinetic impact force is a product of the pellet mass and velocity over time, the Cold Jet delivery system achieves the greatest impact force possible from a solid CO2 pellet by propelling the pellets to the highest velocities attainable in the blasting industry.

Even at high impact velocities and direct head-on impact angles, the kinetic effect of solid CO2 pellets is minimal when compared to other media (grit, sand, PMB). This is due to the relative softness of a solid CO2, which is not as dense and hard, as other projectile media. Also, the pellet changes phase from a solid to a gas almost instantaneously upon impact, which effectively provides an almost nonexistent coefficient of restitution in the impact equation. Very little impact energy is transferred into the coating or substrate, so the Cold Jet blasting process is considered to be nonabrasive.


Thermal Shock Effect

Instantaneous sublimation (phase change from solid to gas) of CO2 pellet upon impact absorbs maximum heat from the very thin top layer of surface coating or contaminant. Maximum heat is absorbed due to latent heat of sublimation.

The very rapid transfer of heat into the pellet from the coating top layer creates an extremely large temperature differential between successive micro-layers within the coating. This sharp thermal gradient produces localized high shear stresses between the micro-layers. The shear stresses produced are also dependent upon the coating thermal conductivity and thermal coefficient of expansion / contraction, as well as the thermal mass of the underlying substrate. The high shear produced over a very brief period of time causes rapid micro-crack propagation between the layers leading to contamination and/or coating final bond failure at the surface of the substrate.


Thermal-Kinetic Effect

The combined impact energy dissipation and extremely rapid heat transfer between the pellet and the surface cause instantaneous sublimation of the solid CO2 into gas. The gas expands to nearly 800 times the volume of the pellet in a few milliseconds in what is effectively a "Micro-explosion" at the point of impact.

The "Micro-explosion," as the pellet changes to gas, is further enhanced for lifting thermally-fractured coating particles from the substrate. This is because of the pellet's lack of rebound energy, which tends to distribute its mass along the surface during the impact. The CO2 gas expands outward along the surface and its resulting "explosion shock front" effectively provides an area of high pressure focused between the surface and the thermally fractured coating particles. This results in a very efficient lifting force to carry the particles away from the surface.

Need more information? Check the FAQ page.

 

 

 

All Info © ColdJet Australia Pty. Ltd. Phone: +61 (2) 9584 9533 Email: info@coldjet.com.au