A Rare-Earth-Free Breakthrough in Electric Motor-Generator Technology
Best Electric Machine (BEM), an American innovator in variable-speed electric motor-generator systems, announces the launch of its patented SYNCHRO-SYM™-the first truly novel electromagnetic motor-generator circuit and control architecture in over a century.
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SYNCHRO-SYM eliminates rare-earth permanent magnets (RE-PMs) while doubling nominal power density, halving losses and cost, reducing copper and core material usage, and achieving up to 8× higher peak torque. Unlike today's “same-old” motors with passive rotor asymmetry-based on RE-PMs, slip induction, reluctance saliencies, or DC field windings-SYNCHRO-SYM features a patented brushless, dual-active topology where both stator and rotor actively contribute to torque and power. This symmetric design delivers unmatched efficiency, sustainability, and affordability-and further multiplies performance when paired with wide-bandgap semiconductors or advanced packaging techniques.
“SYNCHRO-SYM reinvents the electric motor-generator system for the clean energy economy,” said Frederick William Klatt, CTO of Best Electric Machine. “We exceed the performance of rare-earth PM motor systems-at a fraction of the cost-and eliminate dependence on hostile, polluting supply chains.”
Backed by decades of R&D and a pilot retrofit program with a major U.S. motor manufacturer, SYNCHRO-SYM was validated as “transformational” and is now redesigned and ready for commercialization. At 2,000 RPM and just $23/kW, CAD analysis shows BEM's 280kW (560kW peak) axial-flux system-with controller included-achieves a power density of 83kW/L, specific power of 20kW/kg, and torque density of 93Nm/kg.
BEM's MOTORPRINTER™-a patented additive manufacturing method-enables just-in-time production using advanced materials once considered impractical, reducing both supply chain and environmental risks while enabling modular, scalable domestic manufacturing.
SYNCHRO-SYM is strategically aligned with U.S. energy and defense initiatives under the DOE, DOD, and CHIPS Act, offering a credible, scalable solution to re-shore manufacturing and de-risk critical infrastructure.
With electric motors consuming over 40% of global electricity and powering EVs, renewables, and aerospace systems, SYNCHRO-SYM delivers a once-in-a-generation leap in electric motor performance and national competitiveness.
Best Electric Machine is actively seeking customers for direct purchase-offering early-access to BEM's leadership in motor-generator innovation through downpayment-based sales funding commercialization-while also welcoming strategic partners, investors, and public funding support.
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SOURCE Best Electric Machine
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