By farmers - for farmers

Patented air
dehumidifier

The patented air dehumidifier series is the key component of the HSR Heutrocknung range of products. It has been developed over many years and the third generation of air dehumidifiers is now in production. This series, which has been available since 2019, offers even more power for the farmer that the previous HSR air dehumidifier series. HSR air dehumidifiers are constructed from quality components, which are optimally calibrated with each other and that is what makes them stand out from the crowd.

Air dehumidifier

Benefits of a HSR air dehumidifier in detail

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Progressive drive by means of frequency converter regulation

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Low power consumption (peak values of 0.36 kWh per litre evaporated water)

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Patented air dehumidifier for drying hay and other dry material

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Fully automated CPC automatic air conditioning system (applies to all VARIO and ECO* dehumidifiers / * extra equipment)

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Suitable for farms with 3 to several hundred ha grassland

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High degree of fine distribution of the refrigerant to allow heating at a steady rate

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Two dispersion heads for heating at a steady rate

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2 mm lamella distance in the evaporator and condenser

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Anti-mmonia coating on the evaporator heat coil

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Teflon coating on the condenser heat coil

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Dries a variety of materials, such as wood, cereals, hops, herbs, etc.

15 Highlights

All compressors installed by us are compatible with frequency converters

High-quality compressors

High-quality compressors

All the compressors we use are suitable for use with FCs (frequency converters) and come from the reputable manufacturers GEA Bock and Danfoss. They can be serviced and are designed to cover a wide frequency range.

The integrated central control unit and the FC are cooled by cooled air from the evaporator

Integrated waste heat concept

Integrated waste heat concept

The integrated central control and the FC are cooled by cooled air from the evaporator. The waste heat from the control and FC is in turn used for heating. In this way, you benefit from free energy (approx. 0.5 kW).

Anaconda conduits prevent vibration transfer from the compressor to the piping

Flexible piping

Flexible piping

Anaconda conduits prevent vibration transfer from the compressor to the piping. This prevents tearing of the welded joints. The high-quality copper piping also prevents vibration transfer to the casing.

Large distributor head to distribute the refrigerant evenly

2 large distributor heads

2 large distributor heads

Depending on the construction, HSR dehumidifiers have 68 to 83 distribution pipes. These are made from up to 336 horizontal pipes, which ensure even distribution of the refrigerant on the dehumidifier surface.

2 mm fin spacing

2 mm lamella spacing

2 mm lamella spacing

1 m² lamella surface is required for 1 m³ hay. We are able to build a small but powerful dehumidifier thanks to the low distance of only 2 mm between the lamellae.

The refrigerant flows in and out over the entire coil height

Inflow and outflow of refrigerant

Inflow and outflow of refrigerant

The refrigerant flows in and out over the entire coil height. This guarantees that the temperature at the surface is the same over the whole compressor and that the air is uniformly cooled or warmed.

Patented drying technology

The air dehumidifiers from HSR Heutrocknung are protected by several patents (e.g. European patent application 14194496.7 and European patent application 17156316.6). These patents guarantee to our customers that when they invest in a HSR air dehumidifier, they are investing in a unique product.

Two product series to meet your requirements

HSR Heutrocknung offers two product lines.

Air dehumidifier

The VARIO ELITE design for hay professionals. In this model the air dehumidifier's compressor capacity is powered with a design ratio of 3:1 to the fan. The result is high capacity and persuasive success in drying even in adverse weather conditions.

ECO SD air dehumidifier

The mountain farm module in accordance with ÖKL. As well as the VARIO ELITE series, we also offer the cost-effective VARIO ECO series. This has been developed specifically for farmers with relatively small grassland areas. A cost-effective control system ensures a commensurate reduction in price without foregoing many of the advantages of the ELITE series. In this model the air dehumidifier's compressor capacity is powered with a design ratio of 1:1 to the fan. The allocation of compressor capacity to the box surface is based on scientific studies by the ÖKL (Austrian Council for Agricultural Engineering and Rural Development).

More on the mountain farm module in accordance with ÖKL

The choice of product line is strongly dependent on your working methods, your location (height above sea level, precipitation, etc.), the capacity you require, and so on. Our field personnel will be delighted to visit your farm and advise you without obligation. Send off today for our most recent free catalogue and agree a date for an appointment.

Drying of loose hay, round bales
and other agricultural products for drying

HSR hay drying plant has been specifically developed for the drying of loose hay and round bales. Over the years we have responded to customer enquiries by making repeated adaptations to software and hardware, with the result that today we can offer systems for drying maize, cereals, herbs and waste. In addition, wood chips, tea, tobacco, manure and much more can be dried. More information on the drying of loose hay, round bales, horse hay and other agricultural products to be dried is available in the respective blog articles.

0.36 kW/h per litre evaporated water

For the use of 1kW/h of energy in a measurement series of 28°C – 2.787 litres condensate could be eliminated. This value is derived from the Hasenbichler Report, AZ 70CG11/17, dated 14 December 2018. This value has been achieved with a HSR SR30 second generation air dehumidifier. The significant success factors for this fantastic drying result are the specifically coated and deeply incised lamellae and the lamella distance of 2 mm. These are two features shared by all HSR driers as from the second generation. Wider lamella cause increased air flow with no condensation. More information on the Hasenbichler Report is available on our blog.

As well as the Hasenbichler Report, which was undertaken in the Buchs Experimental Laboratory in Switzerland, we can also fall back on numerous scientific works on hay-making. For example, for many years now the Raumberg-Gumpenstein Research Institute in Styria has been undertaking scientific comparative studies of field-cured hay, cold ventilation, warm ventilation (drying by air dehumidifier), etc. Since 2010 HSR air dehumidifiers have been used for the warm ventilation. Last hay season drying results of less than 0.36 kW/h per litre evaporated water were successfully achieved. In the third generation of our drying systems many of the actions performed by the operator are fully automated, such as a fully automatic shutter bypass valve, in order to achieve these drying results. More information on the successful drying results during the 2019 hay season is available on our hay blog (this article in German only).

Reference farms for hay drying

With more than 1,000 vendors nowadays we can cast our eye over a vast regular clientèle in Austria, Germany, France, Italy and Switzerland. Many farmers in Belgium, England, Sweden, Poland, Serbia, the Czech Republic, Canada and many more countries are also our loyal customers.

Our customers include many prominent farmers, such as the Fink and Steger families, who have for years been dominant in the hay championships; the long-term Chairman of ARGE Heumilch Österreich, Karl Neuhofer and his German Hay Milk Chairman colleague, Markus Fischer, who puts in an enormous effort in the cause of hay quality and animal welfare. As well as quality-conscious hay milk farmers we also include may hay merchants among our customers.

Our loyal partners also include five agricultural colleges. These include: the Raumberg-Gumpenstein Research Institute in Styria, the HBLA Ursprung federal agricultural college in Salzburg, the Landesgut Klessheim agricultural college in Wals-Siezenheim in Salzburg, the Fachschule für Land- und Hauswirtschaft Salern agricultural and home economics college in Vahm in South Tyrol and the Grottenhof Agricultural College in Styria. They contribute an important part of our research work by supplying us with new insights and scientific analyses.

You would like to visit a HSR customer in your area to build up a picture for yourself? Contact a contact partner today, who will be pleased to give you details of a suitable HSR farm in your area.

Air dehumidifiers for 3 to several hundred ha grassland

Currently, HSR constructs air dehumidifiers in twenty different sizes, which provides the perfect equipment for farms with from 3 to several hundred ha of grassland. Our smallest air dehumidifier is configured for hay boxes with a surface area of up to 30 m² (maximum fill level 3 metres) and our currently largest hay drying system is designed for hay boxes of up to 700 m² (maximum fill level 3 metres). The different sizes are primarily differentiated by the capacity of the compressor and by the face area of the air dehumidifier (= surface of the lamellae).

Direct comparison of three generations of air dehumidifiers

 

1st generation

2nd generation

3rd generation

Production time

2010-2014

2015-2018

since 2019

Heat coil design

Standard heat coil

New patented heat coils

Apparatus engineering

Reindl Kältetechnik (Bergheim)

KKT Innovations (Nürnberg/Cadolsburg)

MADE IN GERMANY

Vibration-damped compressor

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yes

yes

Vibration-damped connection to refrigeration technology by means of Anaconda lines

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yes

yes

CPC regulation

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yes

yes

Frequency converter technology

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yes

yes

2 mm lamella distance

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yes

yes

Large maintenance gates

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yes

yes

Current detection / current regulation (low-power mode

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Optional

yes

Drying timing

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Optional

yes

Racing fittings

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Optional

yes

Elite regulation (air mass flow management system)

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Optional

yes

Interval drying

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yes

(up to 24 intervals)

yes

(up to 24 intervals)

Optional control system for the drying process via Smartphone and tablet (HSR Connect)

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yes

yes

Optional control system for the air dehumidifier via Smartphone and tablet (HSR Connect)

-

-

yes

Central control

-

-

yes

Integral frequency converter and control system in the air dehumidifier (new drying concept)

-

-

yes

Waste heat utilisation by frequency converter and control system

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-

yes

Reduction in power consumption to 220V for the control system (additional safety feature)

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-

yes

Child lock by means of password

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-

yes

Drying in accordance with HX diagram

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-

yes

Waste heat utilisation by an emergency power generator

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-

Optional

Possibility of 2 compressors per air dehumidifier

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-

Optional

Redundant drying system with two fans

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-

Optional

This is a general comparison of the lines. Not every design variant and every size may display all the differences listed. The data sheet for each air dehumidifier contains a complete list of features. Our HSR sales team will be pleased to advise you on the features included.

 

More information on dehumidifier drying

Other products for the hay crane


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