Drying of Bulk Materials

  • Up to 45% subsidized acquisition costs

  • Save up to 75% on energy costs

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

Bulk materials such as granules, pellets, or powdered substances present specific demands on industrial drying. Moisture must be removed completely and uniformly – without clumping, residues, or loss of quality. With Airgenex® technology, HARTER offers a controlled, energy-efficient drying solution precisely tailored to bulk materials. The gentle airflow ensures a homogeneous drying result with minimal product waste. Whether in plastics processing, food production, or animal feed manufacturing – Airgenex® guarantees stable processes, shortened drying times, and high product quality.

Homogeneous Drying for Free-Flowing Products

Airgenex® dries bulk materials uniformly and with process reliability – from the surface to the core. The technology protects the product, prevents caking, and ensures reproducible results with every batch.

Do you require a custom solution and/or would you like to test the drying process beforehand?

Development with practical tests in our in-house development center

We are an innovation-driven team and welcome new challenges. HARTER tests your custom solution in the technical center under realistic conditions, optimizes the parameters, and documents the results transparently. Please contact us – we would be pleased to provide you with a non-binding consultation!

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

Through controlled airflow and constant temperature conditions, moisture inclusions are reliably removed – without the material clumping or sticking to containers. This improves flow properties and further processing.

Airgenex® technology enables targeted drying to defined residual moisture levels – ideal for subsequent processes such as mixing, packaging, or thermal processing. The values remain stable and controllable.

Low drying temperatures protect heat-sensitive materials such as food ingredients or pharmaceutical substances. Nutrients, aromas, and structure are preserved – completely without thermal stress.

Whether small batches or large quantities: Our drying solutions adapt flexibly to your production volumes. Airgenex® systems can be modularly expanded and integrated into existing processes.

The combination of heat pump technology and closed-loop airflow significantly reduces energy consumption – especially compared to conventional drying methods with hot air or vacuum.

Drying Systems for Bulk Materials

For drying bulk materials, HARTER offers individually designed tray dryers, belt dryers, or cabinet dryers – tailored to product type, moisture content, and process requirements. Airgenex® ensures uniform drying, high energy efficiency, and trouble-free further processing – even with demanding materials and sensitive product structures.

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
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Discover more insights

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