Air knives are a smart and efficient way to dry, clean and remove excess production from products and surfaces. They are widely used in industry, for example in the food, glass and stone industries. But what exactly are air knives, how do they work and why are they so popular? In this blog, we dive deeper into the world of air knives and show what solutions Dovac offers.
What are air knives?
An air knife is a product that generates a thin, powerful stream of air. This is done by using compressed air or a blower, which forces air through a narrow slit, producing an even and powerful airflow.
Difference between air knives and other air drying systems
Air knives are distinguished from other air drying systems by their even air distribution and high efficiency. Unlike point blowers or fans, which distribute air randomly, air knives provide a controlled and directed air flow. This allows them to be used more effectively and with less energy consumption.
Applications of air knives
Air knives are used in a variety of industries because of their versatility and efficiency. Some common applications include:
1. Drying after production processes
- In the food industry, air knives are used to remove moisture from packages or products, such as water droplets on bottles and cans after cleaning.
- In the glass industry, air knives help remove moisture and dust from glass sheets before further processing.
- Air knives are used in the stone industry to remove dust and residue from countertops and other stone surfaces.
2. Removal of dust and dirt
- In the electronics industry, air knives are used to blow dust and fine particles off circuit boards before assembly.
- In the paper and paperboard industry, air knives help remove cutting debris and dust particles from production lines.
- On conveyors, air knives keep dirt and dust from accumulating and disrupting the production line.
3. Controlling airflow
- In conveyor systems, air knives are used to guide products from one belt to another without physical contact.
Advantages of air knives
Why are more and more companies choosing air knives? Here are some key advantages:
1. Energy-efficient and efficient
Air knives consume significantly less energy than traditional air drying systems, such as hot air blowers. Combined with side channel blowers, they provide powerful and efficient airflow.
2. Low maintenance
Unlike mechanical wipers or brushes, air knives have no moving parts that can wear out. This means less maintenance and longer life.
3. Even and powerful airflow
Air blades deliver uniform airflow across the full width of the blade, ensuring consistent drying or cleaning of products.
4. Better control over air distribution
Air blades allow the force and direction of the airflow to be precisely adjusted to the specific application, leading to optimal results.
What air knives does Dovac offer?
Dovac supplies a wide range of air knives suitable for various industrial applications. Our air knives are available in various materials and sizes, depending on customer needs.
Available types and materials
- Aluminum air knives: Lightweight and corrosion resistant, ideal for general purpose applications.
- Stainless steel air knives: Suitable for hygienic applications, such as in the food and pharmaceutical industries.
Customized solutions
Sometimes a standard air knife is not enough. That’s why Dovac offers custom solutions, where air knives are designed exactly according to the customer’s specific requirements. Think custom lengths, specific nozzles or additional air control valves.
Compatible parts and accessories
In addition to air knives, we also supply the necessary accessories, such as:
- Pressure regulators
- Filters and water separators
- Silencers for quieter operation
- Hoses and components for quick installation
Maintenance and longevity
Air knives require relatively little maintenance, but it is important to maintain them properly for maximum life and performance. Here are some tips:
1. Changing filters on your side channel fan
Always use an air filter to prevent dust and moisture from reaching the air blades. Replace these filters according to the recommended intervals.
2. Setting correct air pressure
We calculate for the customer which combination of air knife and blower is needed for the requested application.
Air Cannons
In addition to air knives, Dovac also supplies air guns. These are used for applications requiring a very powerful blast of air to move or remove material. Air guns are ideal for removing accumulated material in silos, conveyors and production lines.
Conclusion
Air knives offer an efficient and energy-efficient solution for drying, cleaning and removing excess production in various industries. Their low-maintenance nature, high efficiency and versatility make them a valuable addition to production lines. Dovac offers a wide range of air knives, air guns and accessories, including custom solutions for specific applications.
Wondering what air knives or air cannons can do for your business? Contact us and discover the best solution for your application!
