DOVAC Air Knives: Efficient and powerful solutions for industrial applications

Our air knives

What are DOVAC air knives and why choose this technology?

DOVAC airknives offer an advanced solution to use compressed air in an energy-efficient manner for cooling, drying or cleaning products in various industrial applications. An airknife, also known as an airknife, consists of a cylindrical tube with a precisely designed outlet slot that directs a steady, non-turbulent flow of air to the product.

With its aerodynamic design, DOVAC air knives create a powerful, directed airflow that delivers superior results when:

• Drying of surfaces
• Cleaning of products
• Removal of moisture, liquids or contaminants
• Cooling of materials
• Separation of products on conveyors

Our air knives are used in industries as diverse as food processing, packaging, automotive, electronics, pharmaceutical and many others where efficient air use is essential for productivity and quality.

How do air knives work?

DOVAC air knives operate on a simple but effective principle: compressed air is converted into a powerful, consistent stream of air at high speed. Unlike conventional blowpipes or nozzles, which tend to produce turbulent and inefficient airflows, an air knife creates a:

1. Laminar airflow: A streamlined, non-turbulent movement of air
2. Uniform air pressure: uniform distribution along the entire length
3. Directed force: precise focus on the surface to be treated
4. Optimized air consumption: minimum use of compressed air for maximum effect

The result is a significantly more effective and energy-efficient system that achieves up to 80% less compressed air consumption compared to traditional solutions, while delivering better results.

Types of DOVAC air knives for every application

DOVAC offers several types of air knives, each designed for specific applications and environments. Our three main categories are:

Stainless steel air knives – durability in demanding environments

Our stainless steel (SS) air knives are specifically designed for the most challenging industrial environments, including:

• Food processing: Meets strict hygiene requirements
• Pharmaceutical industry: resistant to frequent cleaning with chemicals
• Chemical processing:Corrosion resistant in aggressive environments
• Wet and humid environments: Durable in high-humidity conditions

Stainless steel air knives offer superior corrosion resistance, longer life and meet the strict hygiene standards of the food and pharmaceutical industries. They are fully cleanable and designed for continuous use in demanding production environments.

Aluminum air knives – lightweight efficiency

DOVAC aluminum air knives combine lightweight construction with excellent performance, ideal for:

• General production applications
• Electronics Manufacturing
• Packaging Industry
• Automotive sector
• Textile Industry

These air knives offer an excellent balance between cost and performance, with lower weight that simplifies installation and places less stress on support structures. The aluminum construction offers good corrosion resistance in standard industrial environments, while the lower thermal mass allows for faster warm-up times in cycle-related processes.

Air cannon – concentrated power

The DOVAC air gun is specialized tool for applications requiring strong, concentrated air flow:

• Removal of stubborn dirt
• Cleaning hard-to-reach areas
• Unblocking of conveyor belts and machinery
• Precision blowing in production processes

The air gun delivers a focused, powerful air flow that is effective for localized cleaning and concentrated air supply, while still benefiting from DOVAC technology for efficient air consumption.

Benefits of the DOVAC air knives

Optimized energy consumption

DOVAC air blades are designed for maximum efficiency, resulting in significant savings in energy costs. The streamlined design and optimized air dynamics allow up to 80% savings in compressed air consumption compared to conventional blowers, while achieving better results.

Low maintenance costs

Our air knives are characterized by a robust design with minimal moving parts, resulting in minimal wear and very limited maintenance requirements. This means less production downtime and lower operating costs throughout the life of the system.

Significantly lower noise level

DOVAC air knives produce significantly less noise than conventional compressed air systems, contributing to an improved working environment, reduced noise impact on employees and compliance with industry noise standards. This results in a safer and more pleasant workplace.

Clean, oil-free and dry Air

Our systems are designed to deliver consistent, clean airflow without oil or moisture. This is critical for applications where product quality and cleanliness are essential, such as in the electronics, food and pharmaceutical industries.

Easy installation

DOVAC air knives are designed for uncomplicated integration into existing production lines. With optional mounting kits, the system can be quickly installed and configured for virtually any application, minimizing implementation time and cost.

Increased security

By operating with controlled pressure compared to traditional compressed air options, DOVAC blower systems reduce workplace safety risks. Controlled airflow reduces the risk of flying particles and other safety issues common to conventional high-pressure systems.

Applications of DOVAC air knives in various industries

DOVAC air knives find application in a wide range of industries and processes, for example:

Food and beverage industry

• Drying of food products after washing/rinsing
• Disposal of residual water from packaging
• Cleaning of conveyor belts
• Cooling of products in the packaging process

Automotive

• Drying of body parts before and after paint spraying
• Cleaning surfaces before assembly
• Removal of process residues and liquids
• Cooling of parts after thermal treatment

Electronics and semiconductors

• Dust-freeing of printed circuit boards
• Drying after cleaning processes
• Moisture removal from sensitive components
• Controlled cooling during production

Packaging Industry

• Cleaning packages before filling
• Condensation removal
• Drying of labels
• Separating boxes or bags on conveyors

Pharmaceutical industry

• Cleaning of ampoules and vials
• Drying of medical packaging
• Dust removal from production surfaces
• Precision air management for sensitive processes

Metalworking

• Removal of coolants
• Drying after washing processes
• Cleaning of parts before coating
• Cooling during machining processes

Get in touch

Are you ready to increase your productivity, reduce energy costs and improve the quality of your products? DOVAC specialists are ready to help you!

Contact us today for a no-obligation analysis of your application and find out how our air knives can optimize your processes.