SYNCHRO-SYM Technologies

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BEST ELECTRIC MACHINE → BOTTOM LINE UP FRONT

Best Electric Machine (BEM) is a U.S.-based electric motor-generator system (EMS) manufacturer commercializing SYNCHRO-SYM™, the only practical symmetric, active-rotor EMS architecture that eliminates reliance on rare-earth permanent magnets (RE-PM) and their associated geopolitical and supply-chain risks. Unlike rare-earth-free passive-rotor alternatives—such as induction, reluctance, or DC field-wound machines—SYNCHRO-SYM™ improves performance without sacrificing power density, efficiency, or system cost.

BEM supports any production volume or custom design requirement through MOTORPRINTER™, a practical BEM-CAD™–programmable, additive-manufacturing platform capable of securely fabricating high-performance axial-flux electric machines using advanced core materials, without conventional retooling overhead or material waste. Production scales modularly through replication of the compact, portable MOTORPRINTER™ manufacturing platform.

Together, SYNCHRO-SYM™ and MOTORPRINTER™ establish a sovereign electric machine manufacturing capability in support of national infrastructure and supply chain resilience.

SYNCHRO-SYM™ is not a new theoretical construct, but the practical realization of symmetric, active-rotor (and active stator) electric motor-generator system architecture made possible by modern advances in commercially practical power electronics, digital control bandwidth, integrated system design, and advanced manufacturing capabilities. It provides a truly digitized, magnet-free, drop-in replacement for today’s variable-speed, asymmetric, passive-rotor electric motor-generator systems, including induction, reluctance, field-wound, and permanent-magnet architectures—delivering:

  • 2× to 8× improvement in nominal performance per dollar
  • Increased electromagnetic efficiency
  • Reduced conductor and core material per kilowatt
  • Greater than 8× peak torque capability, enabling practical next-generation electric vehicles (EV) electromagnetic gearing and high-capacity, regenerative brake-by-wire.

SYNCHRO-SYMTM is technically proven and ready for immediate commercialization with rapid, reprogrammable, stateside additive manufacturing, a truly software-defined EMS targeted for 2026.


SYNCHRO-SYM uses a truly unique active-rotor electric-machine architecture that adds working power within the same design specification and package footprint—effectively doubling whatever performance competing motor systems may claim under the same constraints, placing SYNCHRO-SYM in a class of its ownby physics, not hype.

Even today’s most advanced EV motorsincluding high-performance axial-flux designs such as those developed by YASA Limited and adopted by Mercedes-Benz—remain optimized passive-rotor machines operating near the classical limits of that architecture and packaging. SYNCHRO-SYM upgrades these machines to an active-rotor architecture that delivers additional power within the same package.


BEM provides not only a uniquely superior electric-machine architecture, but also a uniquely superior low overhead, low waste, portable, secure, reprogrammable, additive manufacturing method that enables axial-flux electric machines—including SYNCHRO-SYMenabling high-performance amorphous layered magnetic materials and enhanced thermal-management capability.


Rare-earth permanent-magnet (RE-PM) electric-machine systems represent today’s highest-performing conventional technology, achieving widespread market adoption. However, their dependence on highly concentrated rare-earth supply chains introduces significant material-resilience and geopolitical risks. As supply-chain security remains uncertain, some manufacturers are pursuing rare-earth-free electric-machine systems that reduce these risks, typically accepting lower performance as the tradeoff.

Industry discussion of rare-earth supply-chain risk and emerging competitive responses can be found here:
→ [Rare Earth Contagion or Competitive Pivot].


SYNCHRO-SYM™ uniquely provides a permanent-magnet-free alternative that improves performance, enabling supply-chain resilience without sacrificing system capability and thereby strengthening national security.


“If a passive-rotor electric motor-generator system can do it, physics says SYNCHRO-SYM can do it better.”


“SYNCHRO-SYM does not out-market competitors — It out-measures them.”


Fundamentally arising from the inherent circuit and control asymmetry of an active stator with an independently excited multiphase winding set (active winding set) paired with a passive rotor using permanent magnets (PM), reluctance saliencies, DC field windings, or slip-induction windings, and governed by offline compensatory derivatives of field-oriented control (FOC) or direct-torque control (DTC), the asymmetric electric-machine system (A-EMS) architecture in use today is intrinsically constrained in scalability, power density, and core utilization, and remains dependent on fixed-tooling manufacturing that requires die retooling and lamination re-inventory for changes in power rating or production volume.

Note: Permanent magnets, reluctance saliencies, field windings, and induction windings do not independently generate controllable electrical working power. Their electromagnetic contribution depends upon excitation supplied elsewhere within the machine system and are therefore classified as passive rotor elements.

Free from the constraints of today’s asymmetric electric-machine system (A-EMS) architecture, SYNCHRO-SYM™ scales across EV, wind, aerospace, and commercial applications by providing the classic “symmetric” electric motor-generator system (S-EMS):

  1. Active Stator + Active Rotor Symmetry — both halves independently deliver working power to the electromechanical conversion, performance-to-price grounded in physics—not marketing spin.
  2. Brushless Real Time Emulation Control (BRTEC™) — compact solid-state, quantum level stabilization with a brushless, symmetrically bidirectional, inherent soft switching, pure sinusoidal, direct AC-to-AC power conversion method at half the current rating; no bulky, costly DC link stage — inherently providing full rotor and stator metrics for superior reliance and automatic sensor-less optimization. Highly adaptable, BRTEC conveniently enables an ultra-high-performance, symmetrically bi-directional, multiphase, isolated EV micro-distribution bus and battery recharger.
  3. Integrally unified electric motor-generator and control technology — not the mated, disparate circuit and control technologies of today’s A-EMS, evolving from different disciplines — compact solid-state BRTEC fits within the axial-flux annulus for another level of integration and power density.
  4. Magnet-Free Operationeliminates rare-earth PM (RE-PM) dependence, extravagant cost, critical supply chain resiliency, and infamous geopolitical risks.
  5. Just-In-Time Additive Manufacturing — enables rapid, low waste, scalable, secure, and reprogrammable production with MOTORPRINTER™, an electric motor 3D Printer Method, and BEM-CAD™, the only EMS CAD with SYNCHRO-SYM extension and cross-analysis.
  6. Future-Ready Architecture — most compatible symmetric circuit and control technology for retrofitting the next-generation EMS, including the superconductor EMS.
  7. Expert-Driven Culture — engineering excellence, customer focus, and principled innovation.


SYNCHRO‑SYM™ EMS The Ultimate EMS

The SYNCHRO-SYM™ Comparison Calculator will provide an AI-generated comparison report between your current EMS and a drop-in SYNCHRO-SYM replacement.



BEST ELECTRIC MACHINE → SYNCHRO-SYM™ DELIVERS

Every EMS product purchase todayespecially the constant wave of so-called advanced high-performance EMS designs—ultimately delivers another “same-old” asymmetric, passive-rotor EMS constrained by the classical limits of that architecture and packaging but claiming performance-to-price advantage through marketing hype and flashy visuals that merely insinuate a technology breakthrough.

A Best Electric Machine (BEM) SYNCHRO‑SYM™ product purchase—provides the fundamental symmetric, active rotor circuit and control architecture and foundational study for all—delivering superior performance-to-price advantage over all other asymmetric, passive-rotor architectures by applying real innovation grounded in the principles of physics instead of marketing spin.

A BEM SYNCHRO‑SYM™ product purchaseprovides the only commercially practical symmetric, active rotor electric motor-generator system architecture (S-EMS) product for a truly new era in low-carbon footprint electrification.

A BEM SYNCHRO‑SYM™ product purchaseprovides a RE-PM-Free EMS alternative with better performance.

A BEM SYNCHRO-SYM product purchase—provides quick, secure inhouse, additive manufacturing by our patented MOTORPRINTER 3D Printing method, called MOTORPRINTER™—reprogrammed by BEM’s computer aided design tool (BEM-CAD)—all other EMS manufacturing relies on the same-old subtractive manufacturing methods, perhaps supplemented with automation.

A BEM SYNCHRO-SYM product purchasemeans working with our lean, expert-driven team culture that prioritizes customer satisfaction, engineering excellence and genuine innovation—uniquely delivering a truly groundbreaking S-EMS solution. Unlike today’s A-EMS product purchase that prioritizes flashy branding and marketing spin but delivers the same-old A-EMS solution as new and innovated.

A BEM SYNCHRO-SYM product purchase—above all, means operating from principle.


SYNCHRO‑SYM™ The Ultimate EMS

Every SYNCHRO‑SYM™ purchase is more than an EMS perchase—it’s an investment in “Real Innovation for Our Clean, Efficient, and Sustainable Energy Future.”



BEST ELECTRIC MACHINE → SYNCHRO-SYM™ PROVEN VALUE

No speculative tech—just better motors and generator systems:


SYNCHRO‑SYM™ The Ultimate EMS

Every SYNCHRO‑SYM™ purchase is more than an EMS purchase—it’s an investment in “Real Innovation for Our Clean, Efficient, and Sustainable Energy Future.”



BEST ELECTRIC MACHINE → SYNCHRO-SYM™ PRODUCTS

SYNCHRO-SYM™ is the only commercially practical electric motor-generator system (EMS) that replaces today’s passive-rotor architectures with a fully active-rotor design—achieving optimal electromagnetic symmetry within the same package footprint as today’s EMS—reliant on the electromagnetic asymmetry of induction windings, reluctance saliencies, permanent magnets, or field windings.

SYNCHRO-SYM™ enables both the stator and rotor to contribute working power to energy conversion and eliminates reliance on exotic RE-PMs or costly Halbach magnet arrangements—delivering breakthrough performance at the world’s lowest cost per unit of power, including RE-PM-free direct-drive systems or wind-turbine applications.

Employing a time-proven axial-flux form factor, engineered using BEM-CAD™, and securely manufactured in-house with BEM’s rapid, low waste, just-in-time, reprogrammable MOTORPRINTER™, SYNCHRO-SYM™ is now available for purchase at the customer’s required performance point and minimum purchase volume with a transparent, well-defined price and delivery schedule—clearly distinguishing it from today’s asymmetric EMS competitors that rely on creative marketing, offshore manufacturing, and opaque price-delivery negotiations.


Our special introductory Early Access Program—requiring aggregate commitments of only 2,000 units—provides the pathway to launch U.S.-based production of axial-flux 280 kW and 560 kW SYNCHRO-SYM™ products. At this production threshold, SYNCHRO-SYM achieves a compelling combination of price, performance, and delivery schedule that consistently surpasses and underprices imported rare-earth permanent-magnet asymmetric electric machine systems (RE-PM A-EMS), including the ultra-low-cost Alibaba benchmark. The result is a domestically manufactured propulsion solution that eliminates rare-earth dependence while strengthening U.S. manufacturing competitiveness, supply-chain resilience, and clean-energy security.



SYNCHRO‑SYM™ The Ultimate EMS

Every SYNCHRO‑SYM™ purchase is more than an EMS purchase—it’s an investment in “Real Innovation for Our Clean, Efficient, and Sustainable Energy Future.”