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As an experienced manufacturer of heat pump dryers, HARTER stands for innovative, energy-efficient, and sustainable drying systems. For more than three decades, the company from Stiefenhofen has been developing and producing customized systems for industry, food, chemicals, pharmaceuticals, and environmental technology.
HARTER combines engineering with practical process development – always with the aim of making drying more efficient, cleaner, and more reproducible.
The creation of individual concepts is described in: How solutions for heat pump dryers are created.
An overview of the technology can be found in: Energy-saving drying with heat pump.
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!
Drying systems
in over 20 countries stand for our quality
Employees
from all areas ensure a high level of vertical integration
Years of experience
in the development of innovative drying systems
Heat pump dryer manufacturer – technology, principle, and energy efficiency
The heat pump dryers from HARTER operate according to the closed air circuit principle:
- The air is dehumidified, heated, and then passed over the product again
- This keeps the process independent of ambient air, temperature, and humidity
Advantages of HARTER technology:
- Energy savings of up to 70% compared to hot air processes
- Stable temperature ranges from 20 °C to 75 °C
- Reproducible processes without exhaust air
- Uniform drying down to the core of the product
- Reduced CO₂ emissions and operating costs
The combination of heat pump, air dehumidification, and heat recovery makes drying particularly economical.
Temperature, air volume, and humidity can be precisely controlled – for optimum product quality with minimal energy input.
Insights into the scaling process are provided by: Expanding capacities with heat pump dryers.
Heat pump dryers
Heat pump dryer manufacturer – applications and cross-industry solutions
As a manufacturer, HARTER covers a broad spectrum – from the food sector to surface and environmental technology. Each system is individually designed, tested, and validated in the technical center.
Typical applications:
- Food industry: Drying of fruit, vegetables, herbs, or pet food
- Pharmaceuticals and chemicals: Moisture reduction in powders and granules
- Metal processing: Drying after cleaning or electroplating
- Plastics technology: Dehumidification of components and plastic pellets
- Environmental technology: Sludge drying after chamber filter press or centrifuge
The systems are available in various designs:
- Chamber dryers/tray dryers for batch processes
- Belt and tunnel dryers for continuous production lines
- Special systems for limited space conditions or potentially explosive areas
Before series production, HARTER tests your original products in its own technical center. Temperature, air flow, and drying time are determined – the basis for a validated, energy-efficient system. An overview of other fields of application can be found on Industries.
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.
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.
Heat pump dryer manufacturer – sustainability, eligibility for funding, and future security
Heat pump drying from HARTER stands for ecological responsibility and sustainable industrial production. By recovering the waste heat in a closed circuit, energy is used multiple times – without exhaust gases or energy losses.
Sustainable advantages:
- Up to 70% energy savings compared to hot air systems
- No exhaust air or filter effort
- Low CO₂ emissions
- Long-lasting components for continuous operation
- Eligibility for funding through BAFA and EU programs
Many companies combine HARTER dryers with photovoltaics, heat recovery, or energy monitoring. This not only increases energy efficiency but also the sustainability balance.
How technical requirements become concrete process solutions is shown in: How solutions for heat pump dryers are created.
What our customers say
“Sometimes it is better to say nothing and let your customers speak for themselves.”
– Regina Mader, Managing Director
FAQ – Frequently asked questions to HARTER
Fill out the form now and we will get in touch with you as soon as possible.
Brochures, technical reports, and press articles for those who want to know more details.
