Modern production technology for the manufacturing of the future.
μ-THINKING ®. Great things always start in detail.
High-precision clamping systems, fixtures, and machines — Made in the Black Forest.
Together, we create production technology for the industrial manufacturing of the future. Since 2000, STERMAN Technische Systeme GmbH has been designing, developing, and manufacturing custom clamping systems, fixtures, and special-purpose machines for demanding manufacturing processes, and is among the quality and technology leaders in customer-specific precision clamping technology.
Our expertise lies where standard solutions reach their limits: We consistently design clamping systems based on the specific workpiece geometry, the machining process, and the required levels of accuracy. This results in highly precise, low-distortion, and automatable solutions for complex clamping tasks. μ-THINKING® is meant quite literally—from mechanical clamping systems for micrometer-level accuracy to the intelligent PICEA product family, which can actively correct workpiece position with a control resolution of up to 0.5 μm.
As a family-owned technology company based in St. Georgen in the Black Forest, we combine engineering expertise in precision clamping technology with mechatronics, sensor technology, and intelligent process control—to ensure the highest precision, process reliability, and cost-effective industrial manufacturing.
μ-accurate solutions from STERMAN.
STERMAN develops custom clamping systems, fixtures, and special-purpose machines for demanding manufacturing processes. In doing so, we consider not only individual components but also the interaction between the workpiece, clamping technology, machine, and machining process as a complete system. Each solution is individually tailored to the specific manufacturing task—ensuring consistently high precision, maximum process reliability, reproducible quality, and optimal workpiece accessibility during machining throughout the entire production run.

STERMAN spindle assemblies serve as the precise interface between the machine tool and the clamping system. They actuate the clamping system while simultaneously routing the necessary media—such as hydraulics, pneumatics, or coolant—through the machine spindle. Depending on the application, our custom-designed spindle assemblies combine clamping cylinders, rotary distributors, tie rods with media passages, and sensors into a perfectly coordinated unit. Each spindle assembly is custom-designed for the clamping system, machine spindle, and machining process—to ensure the highest precision, reliable media supply, and maximum process reliability.

STERMAN designs, develops, and manufactures custom clamping systems based entirely on the geometry of the workpiece and the requirements of the machining process. Depending on the clamping task, these may include, for example, diaphragm chucks, sleeve mandrels, collet chucks, centering and face clamping systems, or complex combination chucks. Through targeted and precisely coordinated force application, even complex, thin-walled, or deformation-sensitive workpieces can be clamped with high precision and minimal deformation—ensuring maximum dimensional accuracy, concentricity, process reliability, and machining flexibility.

At the heart of our fixtures and custom machines are high-precision clamping systems tailored specifically to each manufacturing task. Building on this clamping technology, STERMAN develops flexible fixtures, automated manufacturing cells, and complete custom machines—including workpiece handling, swivel and lift axes, media supply, measurement systems, and the integration of industrial robots or cobots. Of course, we can also implement the complete control system upon request. As a system partner, we assume overall responsibility for the project—from design and engineering through manufacturing and installation to the commissioning of the turnkey, CE-compliant production facility.

PICEA is STERMAN’s intelligent solution for digitized, μ-precise workpiece machining. The mechatronic clamping system transforms conventional clamping technology into an active component of the manufacturing process: PICEA detects and corrects the workpiece position with a control resolution of up to 0.5 μm, thereby enabling the highest levels of concentricity and repeatability. Sensors and process data make every workpiece transparent and traceable, opening up new possibilities for connected and intelligent manufacturing. PICEA can be integrated into new machine designs and retrofitted into existing CNC machines.
Development partner from concept to commissioning.
Whether it’s a new machine, a retrofit, or the modification of existing machine tools, STERMAN supports projects from the initial idea and design through engineering, manufacturing, and assembly to commissioning—and, upon request, well beyond that. With a value-added ratio of over 85 percent, our solutions are primarily manufactured at our facility in St. Georgen in the Black Forest. For an initial clamping concept, a workpiece drawing and the essential information about the machining process are usually sufficient.
Customised clamping technology for your industry, your workpiece and your application.
Every industry and every machining process places its own demands on clamping technology. STERMAN consistently develops bespoke clamping systems, fixtures and specialised machinery based on the geometry of the workpiece and the requirements of the specific manufacturing task. For precise positioning, low-deformation clamping, high torque transmission and maximum machining freedom.
Leading companies in the automotive and motor vehicle sectors, mechanical engineering, robotics and precision engineering, medicine and cleaning technology, the alternative energy sector, aerospace, and measurement and balancing technology rely on solutions from STERMAN. These include, for example, Mercedes-Benz, BMW, Bosch, DMG MORI, Lufthansa Technik and Wittenstein.
MADE IN THE BLACK FOREST — Clamping technology from STERMAN for discerning customers around the world.





































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Sustainability at STERMAN
For STERMAN, sustainability is not just a trend, but a commitment to the environment and future generations. As a family-run technology company with deep roots in the Black Forest, we prioritise resource efficiency and sustainable business practices throughout the entire process, from development and design right through to manufacturing. Our environmental management system, certified to DIN EN ISO 14001:2015, provides a binding framework for this – because at STERMAN, sustainable thinking is not an afterthought, but an integral part of our day-to-day operations.
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