Actuators

A broad portfolio of products and the basis for new developments – for fire protection, HVAC, instrumentation & control, OEM partners, planners and architects.

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Relays

Customer-specific developments and innovative relays for metering, energy management, automotive and e-mobility.

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Solenoids

Made-to-measure developments and innovative solutions: here, we give you an insight into our problem-solving skills.

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Gruner does not have a silver bullet for ongoing success as a company. However, we are committed to quality, innovation and cost-effectiveness.

Ultimate expertiseHigh degree of vertical integration

From the idea through to volume production – Gruner implements all of the quality-related steps for its own solutions. This is the only way for us to provide our customers with innovative components and systems that deliver technological and economic benefits. With our international focus, we retain full autonomy over cost-optimised production. Toolmaking, stamping, annealing, injection moulding, winding, assembly – at Gruner you will find all of these steps, to a reliable standard of quality, at our locations.

  • Gruner is the only independent relay manufacturer in Germany.
  • Gruner is world market leader for polarised latching relays up to 200 amperes.
  • Gruner is a sought-after development partner in the solenoids sector.
  • Gruner is the only manufacturer of actuators that delivers customer-specific solutions on any scale of volume production.

Family-run corporationInnovative technology leader

Gruner is innovative. Gruner is international. Gruner is very much a family business. Flat hierarchies, high flexibility, consistent customer focus and sustained growth have made Gruner a technology leader, one that now sets the standards with its innovations that will be demanded by the industry of tomorrow.

Production Planet Orange

We are now going to take you on a 4-minute journey to our German head office location, and to our international plants in Tunisia and Serbia. Learn how our unique, internationally-oriented development and manufacturing organisation makes scalable production possible, they key to Gruner’s exceptional flexibility.

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Made by GrunerQuality is based on experience

Experience and close cooperation between development and production staff deliver Gruner’s hallmark brand quality. Then there is the policy of 100 percent inspection, which ensures that the components we produce function impeccably.

This is how, over the years, Made in Germany actuators, relays and solenoids have created a global demand for Made by Gruner.

Gruner is certified in accordance with

 

From workshop to global player

2019
2018
2016
2012
2011
2010
2009
2007
2006
2004
2003
2000
1999
1998
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1996
1995
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1990
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1985
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1978
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1972
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1962
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1955
1953

2019

Opening of the new plant in Tunisia.

Gruner AG
is one of the TOP 100 German SMEs in relation to sales revenues, and it occupies a superlative place on the Handelsblatt ranking [a German trade journal].

2018

After 36 years as CEO, Eduard Spreitzer takes over as Chairman of the Supervisory Board.

Building of a new plant in Tunisia.

2016

Volume production launch of the world’s first relay specifically designed for applications in 48V lithium ion vehicle batteries.

2012

Expansion of the assembly plant in Serbia.

2011

The Innovation Prize for volumetric flow sensor G2

2010

Expansion of the Executive Board: Dr. Wolfgang Spreitzer and Patrick Spreitzer.

Construction of the new administration and development building in Wehingen.

Introduction of a new organisational structure. The Board of Management comprises Dr. Wolfgang Spreitzer, Patrick Spreitzer and Martin Spreitzer.

The German Chancellor, Angela Merkel, criticises Chinese pirate copies of German products, and she names the Gruner high-current relay as just one example.

2009

New building at the Serbian location.

Production is commencing at the overseas plant in India.

2007

Volume production launch of the 750H battery isolator relay.

Expansion of the plant in Tunisia.

2006

ISO/TS 16949 certification.

The subsidiary in Serbia is founded.

2004

The product surface area in Wehingen is extended by 2,500 m2 .

2003

Presentation of the first Gruner volumetric flow controller.

Further development of the 700 series of latching relays.

2000

Introduction of a flat organisational structure and a switch to group work based on sound scientific principles.

Wolfgang Gruner dies at the age of 89.

1999

First actuator with LON interface.

1998

Transformation of the business into a listed company.

Introduction of TQM in accordance with EFQM.

1997

Expansion of the production surface area in Wehingen, establishment of a new test laboratory and investment in the very latest CAQ tools.

1996

Certification in accordance with ISO 9001.

Maria Gruner dies at the age of 86.

1995

Implementation of a modern PPS and CAQ system.

1993

Market launch of the first latching type of relay for 100A.

Introduction of a networked CAD system.

1990

The H armature principle becomes the design concept across the board for latching relays. This concept and its reorganised, ultra-flexible production make Gruner the most significant manufacturer of latching relays for energy management for years to come.

Production and development of customer-specific magnets rises sharply.

Development of a new range of actuators for the HVAC sector.

1989

Conversion and modernisation of the administration building in Wehingen, and production surface area at the head office site extended by 1,200 m2 .

1985

Market launch of the polarised 700 range of relays from Gruner.

1982

Eduard Spreitzer joins Gruner, the product portfolio is reorganised and streamlined.

1978

Intensive development of bistable remanence relays.

1977

Assembly plant constructed in Tunisia.

1972

Development of timer relays and electronic coin-operated time switches.

1970

Development of the first latching relay in the 500 series.

1962

Gruner uses the expertise gained from relay technology to diversify, and produces its first solenoids in-house.

1960

Three-floor extension for inventory and assembly.

1957

Two-floor extension and numerous new developments of customer-specific relays.

1955

New build.

Gruner produces its own actuators.

Production of motorised coin-operated time switches for televisions and program indexing units for washing machines.

Production of shaded pole motors and synchronous motors, grill gear units, reversing motor gear units for washing machines and gear units for medical appliances.

1953

Company founded in Wehingen by Wolfgang Gruner.

Start of relay production.

First in-house development: the 353 relay.

International project partnerSolutions for which there is a global demand

It is the development of customer-specific system components in close collaboration with our project partners and the high level of innovativeness we provide to our customers that have made us a globally sought-after partner, one able to come up with real solutions. We have an international presence through our locations in Germany, Tunisia, Serbia and India. The worldwide sale of Gruner products is handled by properly skilled representative offices in individual countries or regions.

More about Gruner

Would you like to learn more about us? Are you looking for components that set new standards? If so, then take a closer look at our actuators, our relays and our solenoids. Are you looking for a bespoke solution or a professional point of contact? Then send us an e-mail.

Mailto

GRUNER AG
Bürglestr. 15 - 17
78564 Wehingen
Germany

Phone: +49 74 26 / 948-0
Fax: +49 74 26 / 948-200
e-mail: info@gruner.de