Blow-off Systems

Efficient blow-off, faster drying, reduced costs

  • Up to 45% subsidized acquisition costs

  • Save up to 75% on energy costs

  • 100% planning reliability thanks to premium after-sales service

Blow-off and Drying in a Continuous Process

HARTER blow-off systems combine compressed-air-free blow-off with Airgenex® drying – ideal for high throughputs in continuous and tunnel dryers. Special air knives and precise air guidance quickly remove bulk water, shorten drying times, and ensure reproducible results. Integration is possible inline or as a separate pre-stage.

Do you have individual requirements that you would like us to test in advance?

From Idea to Custom Solution
Practical Tests in Our In-House Laboratory

For challenging applications, HARTER develops tailor-made custom solutions. In our technical center, we test your product under realistic conditions, define temperature and humidity windows, optimize cycle times, and document the results. Contact us – we will review your task without obligation and provide a clear recommendation for the next steps.

Contact our experts now +49 8383 9223‑210 or submit the contact form
2000

Drying systems

in over 20 countries stand for our quality

100

Employees

from all areas ensure a high level of vertical integration

+ 35

Years of experience

in the development of innovative drying systems

Your benefits

Powerful fans generate high air volumes without a compressor. The air is distributed along the entire length of the air knife – this significantly reduces energy consumption and operating costs, lowers maintenance, and increases system availability.

Whether in batch or continuous operation: Blow-off on belt or tunnel dryers removes bulk water within seconds. This shortens retention times in the subsequent drying process – while maintaining stable quality and high output.

The arrangement of the air knives is vertically and horizontally adjustable. This allows air to be directed precisely onto component surfaces, undercuts, and edges – ideal for racked goods with cupping geometries.

Blow-off can be integrated into rack dryers or continuous drying systems, or used as a separate blow-off station before drying. Installation of blow-off nozzles above the final rinse or upon entry into the drying chamber is also conceivable. This reduces water carry-over and improves overall efficiency.

In combination with Airgenex® drying, the system operates in a closed-loop air circuit. External climatic influences have no effect – temperature and humidity are controlled, and results are reproducible.

Nozzle length, speed, and air volumes are determined in drying tests. This results in a robust process design that functions reliably in series production – without extensive readjustment.

The blow-off technology is designed for high-output applications. Minute or second cycles can be reliably implemented – from bulk water removal to defined residual moisture for final drying.

Where singulation on the belt is challenging, a batch process can be more economical (e.g., drying pallets directly, less handling, lower noise emissions). HARTER evaluates the suitable process form with you.
The Process

We dry with dry air and deliver it to the right places: A perfect interplay of air preparation and air guidance provides you with the best possible drying result.

Interface: Airgenex® Dehumidification Technology / Dryer – Moist air is extracted from the drying chamber and supplied to the dehumidification unit.

The pre-cooler pre-cools the air in a first stage. This significantly reduces the compressor’s energy consumption.

Moisture condenses on the fins of the air cooler and drains out of the drying system via the drip tray and condensate drain.

The cooled, dehumidified air is warmed up without additional energy by means of a pre-heater.
The air heater warms the air to the required process temperature.

The process air fan ensures the necessary air exchange between the Airgenex® dehumidification technology and the drying chamber.

Now, the dry, unsaturated air is guided into the drying chamber, where it absorbs the product’s moisture. Thus, the cycle is closed.

Efficiency that pays off.

Our HARTER drying systems save up to 75% CO₂ and are up to 45% governmentally funded.

Reliable – Competent – Long-term

Service that thinks ahead – for years to come

With the HARTER After-Sales Service, you secure a reliable and efficient drying solution for the long term. Whether it’s maintenance, spare parts supply, or technical adjustments – we support your system throughout its entire life cycle and ensure that it delivers optimal results at all times.

Performance Service

Optimal performance through our “all-round carefree package”

Custom Service

Flexible for changing requirements

Expert Service

Fast assistance in case of failure

Lifetime Service

So that the quality is always right

What Our Customers Say

Not convinced yet? Our customers are thrilled!

“Sometimes it’s better to say nothing and let your customers speak for themselves.”
– Regina Mader, Managing Director

“For several decades, we have been using a Harter sludge dryer in our contract electroplating facility and are very satisfied with it. The technology and service are reliable and have helped us save a significant amount of money on disposal.”

Daniel Hutter
Verzinkerei Kriessern AG

“BK Giulini GmbH has been successfully collaborating with Harter GmbH for approximately 20 years. We are very satisfied with both the dryer technology and the reliability of the entire system. Based on these positive experiences and the excellent service, we invested in another drying system of this type in 2023.”

Dimitri Baumbach
ICL Ladenburg / BK Giulini GmbH (ICL Group)

“In our waste incineration plant, we have saved a significant amount of money by drying our heavy metal-containing hydroxide sludge. The plant technology is sustainable and maintenance-friendly. In retrospect, the investment was a very good decision.”

Stefan Ringmann
KVA Linth
Submit your inquiry now

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