Technical Springs for the Automotive Industry
Manufactured for industrial applications according to customer specifications
We manufacture wire-formed springs, stamped and bent parts, compression springs, tension springs, and leaf springs as components for vehicles and automotive suppliers. We produce these according to drawings, samples, or specifications, with complete documentation and the process and quality assurance required by the automotive industry.
Advantages
Process monitoring, SPC, and comprehensive documentation to meet the requirements of the automotive supply chain.
Rapid Prototyping
Prototype development to verify spring force and installation conditions before mass production begins.
Assemblies & Custom Packaging
Upon request, pre-assembly and process-specific packaging for the assembly line are included.
We understand the challenges
facing the automotive industry
The automotive industry places some of the highest demands on engineering springs:
Tight tolerances, a large number of load cycles, extreme temperature and vibration conditions, and, at the same time, increasing pressure to reduce weight and costs. Every spring must function throughout the vehicle’s entire lifecycle, every batch must be of consistent quality, and every manufacturing step must be documented and traceable.
We provide the process reliability your supply chain expects.
Automotive components require spring forces and geometries within tightly defined tolerances, batch after batch. Our process monitoring and SPC analysis ensure that every batch meets specifications.
We operate according to the strictest standards:
Our ISO 9001:2015 and ISO 14001:2015 certifications guarantee you maximum process reliability, the highest product quality, and responsible use of resources.
From the engine compartment to the underbody, springs are exposed to heat, splashing water, and road salt. We select materials and surface treatments appropriate for the installation location, ranging from stainless spring steel to zinc-laminate coatings.
Inside the vehicle, spring components are constantly subjected to vibrations, temperature fluctuations, and dynamic loads. We design the geometry, material, and preload to meet the required service life.
The automotive supply chain expects complete documentation, from the material batch to the test report. Our manufacturing processes are designed to fully meet these requirements.
Areas of Application
We manufacture precision components for key areas of modern vehicles, exactly according to your drawings, samples, or specifications.
Where Our Technical Springs Make a Difference in the Vehicle
Interior, Exterior, and Ease of Use
Springs, wire-formed and stamped parts that ensure smooth motion, precise end positions, and noticeable ease of use
Innovative spring solutions for the secure locking and rattle-free mounting of a wide variety of interior and exterior trim panels.
Wire-formed springs and leaf springs for spring-loaded flaps, lids, and pull-outs.
Torsion springs, wire-formed and stamped parts for easy fastening and a perfect fit.
Electric Mobility & High-Voltage Components
Spring components designed to meet the specific requirements of electric drives and battery systems
Stamped and bent parts and wire-formed springs for reliable electrical contact under vibration and temperature fluctuations.
Delicate spring elements and precision stamped and bent parts for circuit boards, sensors, and control units, optimized for the tightest installation spaces and reliable current transmission.
Compression springs and spring assemblies for securing and making contact with battery cells; vibration-resistant and temperature-resistant.
Seating Systems & Safety Components
Springs for adjustment mechanisms, seatbelt systems, and headrests that ensure comfort and safety throughout the vehicle’s entire service life.
Compression and torsion springs for height, tilt, and backrest adjustment.
Precision springs and wire-formed parts for seatbelt pretensioners, seatbelt buckles, and headrest locks.
Retaining elements and contact springs for securing and making contact with heating and ventilation modules.
From Prototype to "
" Production Part
From prototype to mass production in record time. Are you developing a new component for the automotive industry? We can quickly produce samples for you or advise you on prototype manufacturing so you can test the spring force and fit in real-world conditions. This helps you minimize your risk before starting mass production.
The Sketch / Idea
Do you have an idea, a rough sketch, or a 2D/3D drawing for a new mounting bracket?? We review your functional requirements and advise you on the optimal design . Even at this stage, we take into account the installation situation, available space, and environmental conditions, in order to streamline the subsequent manufacturing process.
The Prototype
Before your part goes into production, we’ll quickly produce prototype parts or a small batch to verify its functionality.. This allows you to test spring force, holding force, and fit directly on the object. This minimizes your development risk, refines the geometry, and provides you with maximum assurance before the start of series production.
The Production Part
Once approval is granted, we will transition seamlessly to mass production. With continuous process monitoring, we process certified materials to ensure long-term stability. Upon request, you can receive your components ready for assembly or in special packaging tailored to your logistics needs..
Technical Springs for the Automotive Industry
Whether you already have a finished drawing or still need assistance with the design of your spring components:
We are your partner, providing guidance from the initial prototype all the way through to on-time mass production by us. Reduce your risk of complaints with springs that deliver on their promises.
We can quickly answer your questions by phone or email, or through the contact form. You can find the direct points of contact on the Contact page.
Phone: 0371 572 85-0
Email: info@federn-weigel.de
Questions and Answers: Technical Springs for the Automotive Industry
What information do you need to provide a quote?
Ideally, a drawing (2D/3D) or a sample part. Additional information such as the installation situation, desired spring force, available space, quantity, and operating environment (e.g., outdoors, salty air) is also helpful.
Do you also manufacture prototypes or sample parts for automotive components?
We provide you with detailed guidance on prototype development and, based on this, deliver samples or a small production run for functional validation before seamlessly transitioning to mass production.
What materials and surface treatments do you use for automotive applications?
We process all standard spring steels in accordance with EN 10270, as well as stainless spring steels such as 1.4310 or 1.4401. Surface treatments range from electroplated coatings to zinc lamella systems and PTFE coatings, tailored to the installation position and corrosion requirements.
Can you design springs for safety-critical applications in vehicles?
Yes. We specifically design the geometry, materials, and spring characteristics to meet the required service life and load, including components subject to fatigue and those critical to safety.
Do you supply only individual parts, or do you also supply pre-assembled units?
Upon request, we also supply subassemblies and custom packaging to simplify your assembly and logistics processes.
How do you ensure traceability in the automotive supply chain?
Through process monitoring, SPC analysis, and comprehensive documentation—from the material batch to the test report—we ensure the traceability that the automotive supply chain expects.
Do you also manufacture components for electric vehicles?
Yes. We manufacture contact springs, retaining elements, and wire-formed parts for high-voltage connectors, battery modules, and power electronics, designed to meet the specific requirements of electric mobility.
