Products

Magnet-Free Motor Product Portfolio

Industrial OEM rare-earth-free architectures, from standard IE5 SynRM drop-ins to high-speed WRSM traction systems.

Use this page as a pre-RFQ navigator: pick the product family, capture the correct engineering inputs, and move directly to sample validation criteria that buyers can approve.

How to Select the Right Architecture

Evaluate application speed and torque limits to choose between SynRM, WRSM, or SRM.
Confirm mechanical interfaces (NEMA/IEC frame or custom traction housing).
Specify thermal constraints and cooling methods (air, water jacket, oil).
Set sample acceptance criteria (e.g. dyno test points) before quotation freeze.
For EV traction, validate high-speed field weakening performance early.
Ensure matching VFD or inverter control algorithms are supported.

RFQ Inputs Buyers Should Prepare

Complete inputs let our engineering team respond with a usable architecture direction instead of a generic price range.

Input Area	What to Send First	Why It Matters
Performance window	Peak/continuous torque, speed range, duty cycle, voltage, and cooling assumptions.	Separates SynRM, WRSM/EESM, and SRM paths before sample cost is discussed.
Mechanical interface	Frame size, shaft, flange, stack envelope, housing constraints, and drawing revision.	Prevents drop-in replacement assumptions from failing during installation or e-axle packaging.
Validation evidence	Required reports such as resistance, hipot, balance, dyno, dimensional inspection, or material certificates.	Makes the first quotation match your internal engineering and supplier-quality gate.
Commercial scope	Prototype quantity, pilot quantity, annual forecast, destination, Incoterm, and target ship date.	Aligns tooling, packaging, lead time, and production ramp assumptions early.

Open SynRM industrial motor showing laminated reluctance rotor and copper stator windings

Synchronous Reluctance Motors (SynRM)

IE5 ultra-premium efficiency motors with zero rare-earth materials, designed as IEC/NEMA replacement paths for standard induction motors in pumps, fans, compressors, and continuous-duty industrial drives.

Best for procurement managers, plant engineers, and equipment OEMs reviewing IE3 induction motor replacement under EU 2019/1781, DOE 2027 planning, and energy-cost targets.

IE4/IE5 efficiency target for EU Ecodesign and DOE-aligned projects
Neodymium-free rotor path with reduced permanent-magnet cost exposure
Flux-barrier rotor design to remove induction rotor copper loss

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Wound rotor motor assembly with visible slip ring interface for excitation programs

Wound Rotor Synchronous Motors (WRSM)

High power-density externally excited synchronous motor programs for EV traction and e-axle teams eliminating NdFeB supply-chain risk while retaining controllable rotor flux.

Best for OEM EV engineering, Tier-1 drivetrain, and advanced mobility teams migrating away from PMSM platforms while keeping high-speed efficiency and supply-chain control.

Zero permanent magnet cost volatility for rare-earth-risk reduction
Controllable rotor field for high-speed flux weakening strategies
Slip ring, brush, or brushless excitation interface manufacturing review

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Switched reluctance motor lamination stack with magnet-free rotor geometry

Switched Reluctance Motors (SRM)

Rugged magnet-free architecture with no rotor windings or permanent magnets, built for harsh-duty machinery where overload, heat, and serviceability matter more than acoustic smoothness.

Best for engineers dealing with extreme environments where conventional motors fail due to heat, vibration, overload, or maintenance limits.

No rotor magnets, rotor copper, brushes, or rotor insulation aging point
Fault-tolerant phase architecture for harsh industrial duty
High starting torque and wide speed range with matched controller

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Hairpin Stator Winding

Flat copper hairpin stator assemblies for high slot-fill, 800V-capable EV traction and rare-earth-free motor programs.

Best for EV OEM and Tier-1 teams that already own electromagnetic design but need China-based hairpin winding production support.

High slot-fill flat copper winding for 400V and 800V traction stators
Laser weld, end-turn, and phase-connection process control
Slot liner, powder coating, varnish, and partial-discharge planning

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Wound rotor assembly with excitation interface for EESM manufacturing

EESM Rotor Assemblies

Copper-wound rotor, field winding, excitation interface, VPI insulation, and dynamic balancing support for externally excited synchronous motors.

Best for engineering teams reducing NdFeB dependency while keeping control over rotor flux and high-speed efficiency.

Wound rotor build-to-print manufacturing for EESM and WRSM programs
Slot insulation, coil insertion, retention, and lead routing review
Class F/H insulation, varnish/VPI impregnation, and curing control

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Silicon steel stator lamination stack for precision motor core manufacturing

Rotor & Stator Lamination Stacks

Precision electrical steel stamping, interlock, bonding, stacking, and inspection support for rotor and stator cores.

Best for motor designers and sourcing teams that need traceable electrical steel cores for rare-earth-free architectures.

Silicon steel lamination stamping for rotor and stator cores
Prototype tooling, progressive die planning, and repeat-production transfer
Rotor and stator stack assembly by interlock, welding, bonding, or fixture route

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Cross-Family Evaluation Snapshot

Product Family	Primary Buyer Focus	Key Metric	Why It Matters
Synchronous Reluctance Motors (SynRM)	Best for procurement managers, plant engineers, and equipment OEMs reviewing IE3 induction motor replacement under EU 2019/1781, DOE 2027 planning, and energy-cost targets.	Efficiency Class: IE4 / IE5	Defines the compliance direction, test evidence, and buyer-side TCO model.
Wound Rotor Synchronous Motors (WRSM)	Best for OEM EV engineering, Tier-1 drivetrain, and advanced mobility teams migrating away from PMSM platforms while keeping high-speed efficiency and supply-chain control.	Power Density: >= 1.6 kW/kg target review	Critical for EV weight reduction and range extension.
Switched Reluctance Motors (SRM)	Best for engineers dealing with extreme environments where conventional motors fail due to heat, vibration, overload, or maintenance limits.	Rotor Durability: Laminated steel, no rotor winding	Removes magnet demagnetization and rotor-winding failure modes in harsh duty.
Hairpin Stator Winding	Best for EV OEM and Tier-1 teams that already own electromagnetic design but need China-based hairpin winding production support.	Voltage Platform: 400V / 800V class	Determines insulation stack-up, clearance, and validation depth before sample approval.
EESM Rotor Assemblies	Best for engineering teams reducing NdFeB dependency while keeping control over rotor flux and high-speed efficiency.	Validation Evidence: Resistance, hipot, insulation, VPI, balance	Rotor reliability is the gating issue for EESM adoption in traction and high-speed duty.
Rotor & Stator Lamination Stacks	Best for motor designers and sourcing teams that need traceable electrical steel cores for rare-earth-free architectures.	Lamination Thickness: 0.20-0.50 mm electrical steel	Controls iron loss, heat generation, and high-speed efficiency in magnet-free motors.

Featured Products

Representative magnet-free motor assemblies and components for early RFQ screening.

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