What our customers say

“Our experience of cooperation with Gruner has been great, and here’s why:
- open, transparent, spirit of partnership, inspires confidence
- dynamic, solution-oriented, quick
- professional expertise, creative, appropriate resources are committed”

Development engineer from aft automotive GmbH

An appropriate system solution for every requirementCustomized solenoids with added value

Our core competence is the joint development of solenoid solutions that focus precisely on your application-specific requirements. Our agile development teams consist of dedicated experts who work in a cost-oriented and system-integrative manner. Through close collaboration,
we identify the actual requirements of our customers and check which system approach provides added value. Combined with our high vertical integration and scalable production capabilities, we are a reliable development partner for our customers.

Customer-specific solutions5 good reasons for Gruner

  • You develop innovative products with us
  • You gain a solution partner with real expertise
  • You work with a flexible and reliable volume manufacturer
  • You can work successfully with a responsive partner over an extended period
  • You benefit from the peace of mind of a family-run corporation

System solutions from GrunerFrom solenoids system to mechatronic assembly

Optimum integration of our scope of delivery in your application is very important to us. For this, we work with you to define the ideal mechanical and electrical interfaces which helps us to reduce system costs. Our expertise in development, production and assembly equips us to provide you with solutions ranging from single solenoids systems all the way to complex subassemblies. This makes us into a sought-after supplier, also for our OEM customers.

  1. Complete system
  2. Integration of electronics & sealant
  3. Integration of solenoids
  4. Integration of relay module

High degree of vertical integrationCompetence in system solutions

Our vertical range of manufacturing enables us to define the entire scope of delivery with you flexibly and on a joint basis. The focus here is on devising a system solution that enables us to deliver substantial added value to our customers. Our technology experts are available to help our customers to achieve this outcome.

  1. Punched parts
  2. Injection moulded parts
  3. Injection moulding with insert
  4. Two-shot injection moulding

Punched parts
per year


Moulded parts
per year


per year


per year


per year

Scalable, flexible productionNeeds-oriented tool and production concepts

Gruner has a flexible and scalable production model in its international plants in Tunisia, Serbia and India. The level of automation and output volumes of tool concepts and assembly lines can be adapted to meet your requirements perfectly. As well as our own vertically integrated scope of manufacture, you can benefit from our skills in relation to tool-making and equipment construction, wrap-around and connection technology as well as EOL conceptualisation. All of this leads to a close focus on Total Costs and to a substantial reduction in technical and economic risks.

Production Planet Orange

Let us 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 production organisation and manufacturing organisation makes scalable production possible, the key to Gruner’s exceptional flexibility.


We make more possible reliably


With Gruner, you are with a very flexible, innovative partner and a Tier 1 supplier. We are certified to IATF 16949 and we direct our focus on optimum system integration to provide our customers with the greatest possible added value.



In close collaboration with our customers, we develop and produce made-to-measure solutions that are used in building technology, in industry and trade or in medical technology.



Gruner HMI solutions are an incredibly important interface between man and machine. Whether in the form of haptic actuators, noise-damped interlocking solenoids or permanent solenoids: With Gruner you sense what it means to be in contact with the future.



For a vast range of instruments: Our active haptic solutions are in a class of their own. In displays, touchpads, light outputs, switches on steering wheels or gear selector levers, we provide appropriate solutions that deliver perfect feedback.


Your contact

Gruner is pleased to support you with the choice and development of appropriate solenoids for your application. Just ask us.


Bürglestr. 15 - 17
78564 Wehingen

Telephone: +49 7426 / 948-480
e-mail: solenoids@gruner.de