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 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.
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.
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.
Gruner is certified in accordance with
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].
After 36 years as CEO, Eduard Spreitzer takes over as Chairman of the Supervisory Board.
Building of a new plant in Tunisia.
Volume production launch of the world’s first relay specifically designed for applications in 48V lithium ion vehicle batteries.
Expansion of the assembly plant in Serbia.
The Innovation Prize for volumetric flow sensor G2
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.
New building at the Serbian location.
Production is commencing at the overseas plant in India.
Volume production launch of the 750H battery isolator relay.
Expansion of the plant in Tunisia.
ISO/TS 16949 certification.
The subsidiary in Serbia is founded.
The product surface area in Wehingen is extended by 2,500 m2 .
Presentation of the first Gruner volumetric flow controller.
Further development of the 700 series of latching relays.
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.
First actuator with LON interface.
Transformation of the business into a listed company.
Introduction of TQM in accordance with EFQM.
Expansion of the production surface area in Wehingen, establishment of a new test laboratory and investment in the very latest CAQ tools.
Certification in accordance with ISO 9001.
Maria Gruner dies at the age of 86.
Implementation of a modern PPS and CAQ system.
Market launch of the first latching type of relay for 100A.
Introduction of a networked CAD system.
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.
Conversion and modernisation of the administration building in Wehingen, and production surface area at the head office site extended by 1,200 m2 .
Market launch of the polarised 700 range of relays from Gruner.
Eduard Spreitzer joins Gruner, the product portfolio is reorganised and streamlined.
Intensive development of bistable remanence relays.
Assembly plant constructed in Tunisia.
Development of timer relays and electronic coin-operated time switches.
Development of the first latching relay in the 500 series.
Gruner uses the expertise gained from relay technology to diversify, and produces its first solenoids in-house.
Three-floor extension for inventory and assembly.
Two-floor extension and numerous new developments of customer-specific relays.
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.
Company founded in Wehingen by Wolfgang Gruner.
Start of relay production.
First in-house development: the 353 relay.
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.
Bürglestr. 15 - 17
Phone: +49 74 26 / 948-0
Fax: +49 74 26 / 948-200