Friedrichshafen, Germany — ZF Group has developed a heavy-duty electric motor that completely eliminates rare earth materials without sacrificing output or packaging size. Revealed during a September 4 industry press roundtable at the IAA transportation show, the in-rotor inductive-excited synchronous motor, or I2SM, cuts the carbon footprint of motor manufacturing by 50 percent compared to conventional units.

For the freight sector, this engineering milestone targets two major headaches: steep vehicle price tags tied to scarce mining commodities and fragile overseas supply chains. Traditional electric powertrains depend heavily on permanent magnets built from processed rare earth elements. By shifting to a magnet-free design, ZF sidesteps those geopolitical and material procurement hurdles while matching the performance data of standard magnet-based motors.

Martin Fischer, ZF board member for North America, detailed the breakthrough for commercial vehicle and passenger car markets. Fischer confirmed that the I2SM matches the physical footprint and power delivery of existing magnet motors. The manufacturer is currently refining the technology for high-volume production to integrate directly into its existing e-drive platform. Trucking companies hiring fleets for tomorrow will soon have access to the design via 400-volt silicon setups or advanced 800-volt silicon carbide architectures.

What This Means for Drivers

Commercial vehicle innovation directly dictates the equipment CDL-A driver operators and regional haulers will run in the coming decade. Lower manufacturing costs for heavy-duty electric commercial vehicles can help keep truck prices stable as fleets adopt alternative powertrains to meet evolving environmental mandates. Owner-operators investing in future rigs will benefit from parts availability that does not rely on volatile international mining markets.

Industry Reaction

Heavy-duty equipment suppliers are racing to strip rare earth elements from their heavy-duty catalogs as global mining restrictions tighten. Eliminating these materials stabilizes production timelines and insulates truck manufacturers from sudden commodity price spikes. As more OTR truck driver platforms transition toward 800-volt silicon carbide systems for maximum charging efficiency, component innovations like the I2SM provide a clear path toward sustainable, cost-effective commercial electrification.

Key Points

• ZF Group's new I2SM electric motor operates completely without rare earth materials.
• The design slashes the carbon footprint of electric motor production by 50 percent.
• Performance metrics match traditional magnet-based motors within the exact same physical dimensions.
• The technology supports both 400-volt silicon and high-efficiency 800-volt silicon carbide architectures.

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