Dry ice pellet maker is an industrial device that produces uniform dry ice pellets by rapidly expanding and solidifying liquid carbon dioxide. The resulting pellets are typically cylindrical or spherical and can vary in size depending on application requirements. Dry ice pellet making machine is specialized equipment designed to transform liquid carbon dioxide into high-density solid pellets, typically ranging from 1.5mm to 19mm in diameter. The shift toward on-site production of these pellets has been driven by the volatile nature of dry ice. Because it sublimates constantly, purchasing dry ice from a third-party supplier often results in significant “evaporation loss” during transport and storage. By integrating a dry ice pelletizer into a facility, businesses can produce exactly what they need, exactly when they need it, ensuring maximum freshness and density.
Dry Ice Pelletizer Parameters
| Model | YG-60 | YG-120 | YG-200 |
| Dry Ice Specifications | ϕ3-ϕ19 | ϕ3-ϕ19 | ϕ3-ϕ19 |
| Dry ice density | 1.3-1.45 | 1.3-1.45 | 1.3-1.45 |
| Output per hour | 60kg | 120kg | 200kg |
| Motor power | 2.2kw | 3.7kw | 7.5kw |
| Work stress | 20KN | 20KN | 20KN |
| System pressure | 25Mpa | 25Mpa | 25Mpa |
| Working pressure | 20Mpa | 20Mpa | 20Mpa |
| Oil pumps | 60L/min | 100L/min | 150L/min |
| Dimensions | (L)700*(W)640*(H)1150(mm) | (L)1000*(W)740*(H)1450(mm) | (L)1420*(W)1000*(H)1750(mm) |
Features of Dry Ice Pellet Makers
- High-Density Extrusion: The efficiency of dry ice depends on its density. Quality makers use hydraulic systems to compress CO₂ snow into ultra-dense pellets that last longer and perform better in blasting applications.
- Fully Automated Operation: Modern units are equipped with Programmable Logic Controllers (PLCs). This allows for one-touch starting, automatic monitoring of liquid CO₂ levels, and self-diagnostic capabilities.
- Stainless Steel Construction: Given the extreme cold temperatures involved, the chassis and internal components are usually crafted from high-grade stainless steel to prevent corrosion and ensure structural integrity over years of heavy use.
- Compact Footprint: Despite their high output, modern machines are designed to take up minimal floor space, making them suitable for crowded factory floors or small distribution centers.
Wide Applications of the Dry Ice Pellets
- Industrial Cleaning Through Dry Ice Blasting
This is perhaps the most significant application. 3mm pellets produced by the dry ice pellet maker are used as kinetic projectiles in a process similar to sandblasting. However, because dry ice sublimates on impact, there is no secondary waste. It is used to clean automotive molds, printing presses, and electrical components without the need for water or harsh chemicals. - Food Preservation
In the food industry, 10mm to 16mm pellets are used to maintain the cold chain. During the transport of meat, seafood, or frozen desserts, dry ice provides a consistent, dry cold environment that inhibits bacterial growth without leaving any residue. - Medical and Pharmaceutical Logistics
Vaccines, biological samples, and certain life-saving medications require precise temperature control. Dry ice pellets are the gold standard for international shipping of these sensitive materials, ensuring they remain viable for days or even weeks in specialized containers. - Entertainment and Special Effects
The classic “low-lying fog” seen on stages and in film sets is created by dropping dry ice pellets into hot water. The rapid sublimation creates a thick, white mist that stays close to the floor, providing a dramatic visual effect.
Advantages Compared With Other Cooling Methods
- The advantages of using a dry ice pellet maker extend beyond simple cooling. Dry ice sublimates directly from solid to gas, leaving no liquid residue. This makes it cleaner and more hygienic than water ice or gel packs.
- Another advantage is temperature stability. Dry ice maintains a consistent low temperature, which is especially important for long-distance transport and sensitive materials. Traditional refrigeration systems may fluctuate, while dry ice provides reliable performance without electricity during use.
- Environmental considerations also play a role. Dry ice is typically produced from recycled carbon dioxide captured from industrial processes. Using a dry ice pellet making machine supports circular carbon usage rather than releasing gas into the atmosphere.
Dry Ice Pellet Making Machine Maintenance
- Daily Checks: Operators should inspect the CO₂ lines for leaks and ensure the hydraulic oil levels are within the optimal range. The extrusion die should be checked for any blockages or buildup of frost.
- Hydraulic System Care: The hydraulic oil and filters must be changed periodically. Since the machine operates in cold environments, using the correct grade of low-temperature hydraulic fluid is vital to prevent sluggishness or pump failure.
- Seals and Gaskets: The extreme temperature cycles (from ambient to -78 degrees) put immense stress on seals. Replacing these at scheduled intervals prevents hazardous CO₂ leaks and maintains the pressure necessary for high-density production.
- Cleaning the Snow Chamber: While CO₂ is clean, atmospheric moisture can enter the chamber and turn into water ice. This can jam the piston or the die. Periodically warming the machine up to “defrost” the internal components is a necessary part of the workflow.
Safety Considerations In Dry Ice Production
- Working with a portable dry ice pelletizer involves two primary hazards: extreme cold and gas displacement.
- Thermal Safety: Dry ice causes instant frostbite upon skin contact. Operators must always wear insulated gloves and face shields. The machine surfaces near the extrusion head will also be dangerously cold during operation.
- Ventilation: As dry ice sublimates, it releases CO₂ gas. In a confined space, this gas can displace oxygen, reducing oxygen. Every room housing a dry ice pellet maker must be equipped with floor-level CO₂ monitors and high-capacity ventilation systems.
- Pressure Safety: The machine operates using high-pressure liquid and hydraulic systems. Regular inspection of pressure relief valves and burst discs is mandatory to prevent mechanical failure.
