The Specialist for individual solutions

Finding innovative solutions -
taking new approaches ...


Welcome to HOF

HOF Sonderanlagenbau GmbH has been the leading specialist for manufacturing
individual freeze drying systems, loading and unloading systems
and freezing and thawing equipment for 30 years.

Focus on your product

Individually designed, planned and manufactured – with state-of-the-art technology

We let knowledge grow

Our know-how is the basis for your success

Communication & media

Knowing what is important



HOF Sonderanlagenbau GmbH
Ludwig-Rinn-Str. 1-3
35102 Lohra

Phone + 49 6462 9169-0
Fax + 49 6462 9169-199


Mornshausen site:

HOF Sonderanlagenbau GmbH
Vor dem Langen Loh 2
35075 Gladenbach-Mornshausen

Phone + 49 6462 9169-0
Telefax + 49 6462 9169-199



Relying of knowledge and experience – 30 years HOF

Dear ladies and gentlemen,

on October 1, 1988, the company “Schäfer & Hof Vakuum und Kältetechnik Sonderanlagenbau GmbH” was founded in a former cigar factory in Lohra, city in the central Hessen.

This is not necessarily a jubilee in the classic sense of the term, but it is a remarkable milestone in our company history, of which we can be very proud.

Always think ahead ... that is the maxim that always drives HOF forward to always technologically “think outside the box” – always looking the best solution for its customers.

HOF now looks back on more than 30 years of company history.
Since its founding in 1988, HOF has continuously developed into a globally operating and innovative company in the manufacturing of individual freeze-drying plants, loading & unloading systems and freezing and thawing equipment.

Step by step and always focusing on the essentials, the company has positioned itself as a market-oriented company, and has been for more three decades now the leading specialist for individual solutions in the pharmaceutical and biotechnological industry, with more than 270 employees within the HOF group.

We sincerely thank you for 30 years HOF Sonderanlagenbau GmbH and would like to thank all business partners who have accompanied us on this way for the good and successful cooperation.

Special thanks go to our customers for their trust and longstanding loyalty, and above all to our employees for their engagement and work, without them, we could not share our success. Therefore we are proud and grateful for the work they do each day.

We look forward to what is still to come and to the next years with you.

Yours sincerely
The HOF family

"Detailed information about our company anniversary can be found in our latest issue of HOFinsight."
Dr. Alexander Hof (management)

More about that here…

HOF company history 1988 – 2018

Sometimes things don’t turn out as planned

According to the original idea, HOF (or Schäfer & Hof – Vakuum und Kältetechnik Sonderanlagenbau GmbH, as it was when it was founded in 1988) was to become a nationally active service company, offering and providing services in the form of maintenance and modifications for existing freeze-drying plants.

However, this service company never existed in this form, because when the company was founded the order for the construction of a new freeze-drying plant was placed directly. So, from day one, the business model was based in the mechanical engineering sector, and it was always clear that service in any form would have to play a key role.


A strong team, the right knack and the necessary amount of luck meant that the available space had already been used up in the business’ second year and a large assembly building was erected. Since then, the company premises have been expanded in several stages to create a total building area of 13,500 m² at three sites.

Challenges: our driving force

HOF’s development has been constantly accompanied by the growing demands of the pharmaceutical and biotechnology industries. At the same time, it was always our customers’ challenges that served as the driving force for innovations and further developments. In addition to solutions in the field of freeze-drying technology, pioneering HOF products such as freezing and thawing equipment for blood plasma in blood donation centres, effective systems for loading and unloading freeze-drying plants, freeze-thaw units for tempering pharmaceutical and biotechnological products and, most recently, thawing and cutting devices for bottled plasma were developed.

Our philosophy

With the basic philosophy of offering and delivering “on-time quality for discerning customers”, after a 30-year company history HOF is today the leading specialist for individual solutions. This much is underlined by the innovation and management awards that HOF has received in recent years.

Letting knowledge grow

In keeping with this doctrine, HOF attaches a great deal of importance to training specialists and has been a training company for over 25 years. In addition to offering the classic skilled occupations in the commercial and industrial segments, HOF has been a university partner for the Dual Study integrated degree programme and other degrees for many years.
In-depth specialist knowledge, many years of experience and a high degree of flexibility, coupled with short decision-making paths and the spontaneity of a medium-sized, owner-managed family-run business, have made HOF strong – not only in the field of plant engineering, but also in the all-important area of service. This has been just as important as plant engineering since the company was founded, and, like the company, has been steadily expanded over the years.

Today, HOF manages more than 2,000 plants – both its own and ones from third-party manufacturers – at international level. With knowledge and experience, crucial quality and the familiar flexibility we’re known for, HOF will remain a stable partner in the future as a specialist for individual solutions.

More about that here…

Hans-Georg Hof takes a look back

It all started in what was formerly a cigar factory

At that time, we spent a long time humming and hawing over whether acquiring such a large building would be worthwhile. I never thought that we’d have to contend with our first extension in the second financial year due to a lack of space – let alone today’s dimensions.

Where 260 employees work today, in the early days I was a salesman, planner, electrician, locksmith, commissioning engineer, service fitter and manager all rolled into one. Although nowadays I primarily deal with strategic matters, I don’t let myself miss out on my daily walk through the workshop or tinkering around in one way or another.

The foundation of HOF Prüfsysteme GmbH
We founded HOF Prüfsysteme GmbH on 1 April 2004 through private connections and the roots of my professional career in the freeze-drying technology sector. In this company, we primarily serve the automotive industry with our leak testing systems. As a corporate group, we have been working hand-in-hand ever since and complement one another with both limited companies.

Successful attendance at trade fairs
We have been an integral part of ACHEMA in Frankfurt since 1994. Although my feet usually hurt on the first evening of the trade fair, we can always look back on a very successful attendance. What I’ve always liked – and still do like – most about this is the contact with our existing customers and the related opportunity to exchange ideas in both a business and a private context.

Sustainability and treating nature with respect are particularly important to me as an amateur farmer
Straw – the by-product created during cereal growing – can be put to more sensible use than being left chopped in the field. It took several years to get from the initial idea to the actual implementation process, but since 2013 we’ve been able to heat our Mornshausen site completely with straw.
The fact that the complete value creation chain – from cereal growing and pelleting the straw, to using the pellets in the heating system – comes entirely from a single source was a one-of-a-kind pilot project in Germany and therefore a milestone that makes me puff up with a certain feeling of pride.

A heavenly gift
On our company’s 25th anniversary, we held a large family day in addition to our first HOF Specialist Forum. During the festivities, the staff surprised my wife and I with a balloon ride, which we took a short time later.
The fact that we were able to maintain our team integrity and personal connection to one another – even after 25 years – and were thanked with such a beautiful experience truly was and is a special gift.

Always a highlight
Whether it’s a 0.5 m² laboratory plant, a 40 m² production plant, a compact FTU or a delicate loading and unloading system – integrating our solutions into our customers’ buildings is always a very special event every single time and has required us to come up with lots of extraordinary ideas in the past.
It’s all about overcoming challenges, particularly in existing buildings with specified access routes – and a task which I personally always really enjoy and am happy to take on.

More about that here…

Auf Wissen und Erfahrungen Vertrauen – 30 Jahre HOF

Sehr geehrte Damen und Herren,

am 1. Oktober 1988 wurde die damalige Schäfer & Hof Vakuum und Kältetechnik Sonderanlagenbau GmbH in einer ehemaligen Zigarrenfabrik im mittelhessischen Lohra gegründet. Das ist nicht unbedingt ein Jubiläum im klassischen Sinne, aber dennoch ein markanter Meilenstein unserer Firmengeschichte, auf den wir sehr stolz sind.

Immer ein Stück weiter denken … das ist die Maxime, die HOF immer wieder dazu antreibt, technologisch „über den Tellerrand“ zu schauen – immer auf der Suche nach der besten Lösung für ihre Kundinnen und Kunden.

Auf über 30 Jahre Unternehmensgeschichte blickt HOF mittlerweile zurück. Seit der Gründung im Jahr 1988 entwickelte sich HOF kontinuierlich weiter – zu einem weltweit agierenden und innovativen Unternehmen in der Herstellung von individuellen Gefriertrocknungsanlagen, Be- und Entladesystemen sowie Einfrier-und Auftaugeräten.

Step by Step und immer mit dem Blick für das Wesentliche wurde das Unternehmen marktorientiert aufgestellt und ist nun seit über drei Jahrzehnten, mit mehr als 270 Mitarbeiterinnen und Mitarbeitern in der HOF Unternehmensgruppe, der führende Spezialist für individuelle Lösungen in der pharmazeutischen und biotechnologischen Industrie.

Wir sagen herzlichst Dankeschön für 30 Jahre HOF Sonderanlagenbau GmbH und möchten uns bei allen Geschäftspartnern, die uns auf diesem Weg begleitet haben, für die gute und erfolgreiche Zusammenarbeit bedanken.

Besonderen Dank gilt unseren Kunden für Ihr Vertrauen und Ihre langjährige Treue und vor Allem auch unseren Mitarbeitern für ihr Engagement und ihre Arbeit, ohne sie könnten wir auch unseren Erfolg nicht teilen und daher sind wir stolz und dankbar, was sie jeden Tag leisten.

Wir freuen uns auf das was noch kommt und auf die nächsten Jahre mit Ihnen.

Herzlichst Ihre Familie Hof

„Ausführliche Informationen zu unserem Firmenjubiläum finden Sie in unserer neusten Ausgabe HOFinsight.“
Dr. Alexander Hof (General Management)

Mehr dazu hier

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