High-Velocity Air Knife Systems
Engineered for maximum tear-drop airflow efficiency. CHANGESO air knives deliver a powerful, continuous air curtain for industrial drying, blow-off, and cooling applications.
Standard Aluminum
The industry benchmark for cost-effective, high-efficiency drying. Crafted from extruded aircraft-grade aluminum with a hard-anodized finish.
- Material: AL6061-T6 Anodized Aluminum
- Best for: Packaging, Parts cleaning, General drying
- Advantage: Lightweight & Highly corrosion resistant
Stainless Steel
Built for extreme environments. Delivering unmatched durability for food processing, high-temperature operations, and corrosive chemical lines.
- Material: Solid SUS304 / SUS316L Food Grade
- Best for: Food & Beverage, Pharma, High-Temp (250℃)
- Advantage: Ultimate hygiene & extreme pressure handling
Technical Specifications Comparison
| Specification | SC-AL Series (Aluminum) | SC-SS Series (Stainless Steel) |
|---|---|---|
| Material | Extruded Aluminum Alloy (6061) | SS304 / SS316L Stainless Steel |
| Max Effective Length | Up to 2500 mm | Up to 3000 mm |
| Standard Air Gap | 1.0 mm (Adjustable via shims) | 1.0 mm (Adjustable via shims) |
| Max Air Velocity | 200 m/s | 200 m/s |
| Temperature Resistance | Up to 80°C (176°F) | Up to 400°C (752°F) |
| Primary Applications | Beverage drying, parts cooling | Food-grade, pharma, corrosive areas |
How CHANGESO Air Knives Work
CHANGESO industrial air knives utilize the Coanda effect to entrain ambient air. High-pressure air from a centrifugal blower enters the proprietary “tear-drop” plenum and accelerates through a precise 1.0mm gap.
This aerodynamic design amplifies the initial airflow by up to 40 times, creating a uniform, razor-thin sheet of air that acts like a solid physical barrier. The result is a 75% energy saving compared to traditional drilled pipe compressed air systems.
Trusted in Critical Applications
From canning lines to heavy industrial cleaning.
Frequently Asked Questions
How do I choose between SC-AL (Aluminum) and SC-SS (Stainless Steel) air knives?
Choose the SC-AL series for general drying, blowing, and cooling tasks (e.g., bottling lines). Choose the SC-SS series for food-grade, pharmaceutical, high-temperature (up to 400°C), or highly corrosive environments where FDA hygiene standards are required.
Should I use compressed air or a centrifugal blower?
We highly recommend using high-speed centrifugal blowers. While compressed air can be used for very short lengths, blower-driven systems consume 50% to 75% less energy and provide a much higher volume of continuous air for effective drying.
How do I calculate the airflow requirement for my air knife?
Airflow ($m^3/h$) depends on the length, gap, and target velocity. You can use our free Airflow Matcher Calculator on the CHANGESO website to input your parameters and instantly get the required blower capacity.
Not sure which material is right for your line?
Tell us about your production environment, and our engineers will recommend the perfect air knife configuration.
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