Dry Ice Blasting Pressure & Flow: Why CFM and PSI Both Matter

Updated August 2026

Pressure Alone Does Not Define Dry Ice Blasting Performance

For contractors and maintenance teams, compressor selection is often the real constraint in dry ice blasting. PSI describes pressure, while CFM describes airflow volume. A system can reach the target PSI and still perform poorly if the air supply cannot sustain the required CFM.

The AI30 dry ice blaster has a working pressure range of 87–116 PSI and machine air demand of 71–141 CFM.

Current AI30 Air-Supply Guidance

These compressor-output figures describe the air supply, not permission to operate the AI30 above its specified 87–116 PSI range. Follow the machine specification and project safety requirements.

Why CFM Matters on Large or Remote Jobs

Long hose runs, compressor loading and other site conditions can reduce delivered air at the machine. If airflow falls, pellet acceleration and cleaning productivity can decline even when tank or line pressure initially looks adequate.

This is why a fixed “10 HP minimum” is not a reliable selection rule. Verify sustained compressor output at the relevant pressure.

Current AI30 Specifications

• Hopper: 44 lb (20 kg)
• Dry ice output: 0.66–1.32 lb/min
• Pellet size: 3 mm or smaller
• Power: 110 V / 60 Hz
• Blasting hose: 13 ft

Where the AI30 Fits

The AI30 is positioned for contamination removal rather than aggressive structural surface preparation. It may be useful for grime, grease, salts and inspection-obscuring buildup on compatible surfaces, but it is not an abrasive rust-removal or profiling system.

Bridge, infrastructure and public-works projects can have project-specific environmental, containment and safety requirements. Those requirements should be reviewed independently of the AI30 product specification.

FAQ

Can I size the compressor from PSI alone?

No. The compressor needs adequate sustained CFM and pressure.

Does the AI30 require a 10 HP compressor?

Do not use horsepower alone. Check delivered airflow: about 80 CFM practical indoor minimum, 90–120 CFM recommended for regular indoor use, within the AI30’s 87–116 PSI operating range.

Can the AI30 remove heavy structural rust?

Pure dry ice blasting is non-abrasive and is not intended for deeply pitted rust or surface profiling.

Conclusion

For dry ice blasting, CFM and PSI must be evaluated together. Correct compressor selection should come from sustained delivered airflow, working pressure, air quality and the specific job—not from one horsepower number.