As the electric vehicle (EV) market accelerates, motor efficiency has become a decisive performance and competitiveness factor for OEMs and suppliers alike. Achieving high efficiency requires a deep understanding of how magnetic materials, motor topologies, and production processes interact. BROCKHAUS MEASUREMENTS addresses these challenges with an integrated measurement ecosystem that spans R&D laboratories, pilot lines, and fully automated production environments. This presentation demonstrates how advanced magnetic testing enables manufacturers to gain full transparency over material quality, detect process-induced deviations, and consistently optimize motor performance.

A central topic is the behavior of electrical steel, whose magnetic losses can vary significantly depending not only on grade and supplier, but also on downstream processing steps such as stamping, interlocking, welding, and annealing. BROCKHAUS measurement systems—including Epstein frame, SST, and customized single-sheet testers—allow engineers to quantify these variations precisely. By correlating material degradation with motor efficiency, manufacturers can systematically improve both design and process stability.

Beyond raw materials, BROCKHAUS offers a wide spectrum of stator and rotor testing solutions. Stator measurement systems, ranging from manual setups to fully automated in-line stations, use split-coil technology and multi-frequency excitation to assess losses, permeability, and structural influences in assembled stacks. These systems detect mechanical stress, lamination defects, and stacking inconsistencies early, before they can propagate into the final motor.

Rotor and magnet testing solutions complete the portfolio by enabling thorough evaluation of magnetic induction, stray field distribution, and pole uniformity—critical metrics for validating rotor design, magnetization strategies, and production consistency. Through this holistic approach, BROCKHAUS empowers EV manufacturers to make data-driven decisions from the earliest development stages to high-volume mass production. The result is improved motor efficiency, reduced scrap, and stable, predictable quality across the entire value chain.

Key Takeaways

• Magnetic testing reveals how production processes impact electrical steel performance and EV motor efficiency.

• BROCKHAUS provides end-to-end measurement solutions for materials, stators, and rotors— from R&D to mass production.

• Split-coil stator testers detect mechanical stress, stacking deviations, and lamination defects with high repeatability.

• Automated in-line systems ensure consistent quality with minimal cycle time.

• Rotor and magnet testing enables validation of magnetization, pole uniformity, and induction behavior.

• Manufacturers gain process transparency, reduce losses, and optimize motor performance across the value chain.