About us
Over 30 years of experience in precision and innovation.
SD GmbH Klaus Hirsch
Precision, reliability and innovation - since 1986.
"Precision and innovation are the key to our success
- and that of our customers."
Since our foundation in 1986, SD GmbH has established itself as a reliable partner for precision pipe fittings.
With a strong team of 170 qualified employees and state-of-the-art technology, we supply leading manufacturers worldwide.
Our products are not only used in the automotive industry, but increasingly also in energy technology, e.g. in heat pump systems.
The combination of innovation, customized solutions and uncompromising quality is the foundation of our success. We focus on close communication with our customers and the continuous improvement of our processes.
Together with our partners, we develop future-proof solutions for mobility and the energy transition.
We are proud to maintain long-standing partnerships with leading companies worldwide.











Progress through precision
Our technologies for your future
Our tube fittings are manufactured using state-of-the-art technology and offer maximum precision and reliability. You can rely on our many years of experience in automotive and energy technology.
State-of-the-art processes for the highest series quality.
Automated processes for cost-efficient production.
Our components offer long-lasting quality for demanding applications.
Your contacts at SD GMbH
We are at your side.
Management
- +49 8245 96750-0
- alexandra.rosenberg(at)sdhirsch.de
Head of Supply Chain Management
- +49 8245 96750-17
- christoph.zimmermann(at)sdhirsch.de
Head of Key Account Management
- +49 8245 96750-45
- tassilo.hibler(at)sdhirsch.de
Why SD GmbH?
What sets us apart
We have stood for precision, quality and innovation for over 30 years. With tailor-made solutions, state-of-the-art technology and a global network, we do everything we can to successfully implement your projects.
Maximum precision in every production step for reliable results.
Customized product solutions for your requirements.
We use state-of-the-art technologies to guarantee outstanding quality.
We have been combining tradition with innovative technologies since 1986.
Efficient processes conserve resources and protect the environment.
Worldwide delivery and support with locations in Germany.
Highest standards through ISO certifications and process control.
Close exchange with customers from planning to implementation.
From prototypes to large series: Flexible and tailored to your needs.