Axial silicon-steel lamination core and concentrated winding support for AFPM programs that need a low-frequency lamination route, wound stator package, or SMC-versus-lamination comparison.
Lamination and winding services should be scoped as a process package. The buyer should separate core manufacturing, winding, insulation, impregnation, coating, inspection, and final acceptance tests before comparing quotes.
| Parameter | RFQ Planning Range | Engineering Note |
|---|---|---|
| Lamination material route | 0.10-0.35 mm silicon steel planning discussion | Final material and thickness depend on frequency, loss target, cutting route, burr control, and supplier availability. |
| Axial stator envelope | OD 30-800 mm; ID 25 mm min.; axial height 5-110 mm | The same envelope range should be checked against winding access, fixture strategy, and final stack bonding. |
| Slot count planning range | 3-112 slots | Slot opening, polygon effect, pitch drift, and coil insertion method drive manufacturability. |
| Winding route | Concentrated winding, flat wire, hairpin, I-pin, bobbin, or post-assembly winding review | The winding method should be confirmed before lamination geometry and insulation clearances are frozen. |
| Insulation and finishing scope | Resin varnish impregnation, epoxy coating, Hi-pot, resistance check, and thermal interface by drawing | Electrical acceptance criteria should be quoted separately from dimensional core acceptance. |
Evidence Pack
For custom product RFQs, the useful proof is a controlled evidence package: drawings, material route, inspection records, validation scope, and sample acceptance notes.
| Buyer Checkpoint | Evidence to Prepare | Acceptance Focus |
|---|---|---|
| Drawing and revision control | Lamination drawing, stack specification, material grade, strip thickness, and preferred cutting or winding route; Stator OD, ID, axial height, slot count, tolerance stack, bonding method, and weld or self-bonding preference | Keeps quotation, tooling review, inspection, and sample feedback tied to the same controlled design baseline. |
| Material and process route | Recommended buyer inputs: lamination stack drawing, winding diagram, wire specification, target frequency, thermal target, and Hi-pot requirement.; Confirm whether the design benefits from laminations at the operating frequency before choosing this route over SMC. | Prevents buyers from comparing catalog material claims without the operating point, geometry, and process route. |
| Magnetic and dimensional validation | Recommended reports: dimensional inspection, burr or edge-quality notes, stacking factor, insulation resistance, Hi-pot result, and winding resistance when included.; Lamination thickness and stacking factor: 0.10-0.35 mm material planning, drawing dependent; Interlaminar insulation: Material coating and process dependent; Slot fill and winding resistance: Wire, turns, slot, and insulation design dependent | Turns the sample from a loose part into an engineering record that can support design, quality, and procurement review. |
| Risk controls before tooling | Polygon effect or pitch drift creates assembly and air-gap errors: Define correction strategy, fixtures, datum scheme, and inspection points before sample production.; Cut burrs or bonding process create interlaminar shorts: Specify edge quality, deburring, insulation checks, bonding method, and acceptance inspection. | Surfaces compaction, air-gap, winding, coating, and packaging risks before the buyer commits to tooling. |
Any released claim should be tied to the buyer drawing, sample ID, material batch, inspection method, and agreed test condition instead of a generic marketing statement.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Lamination thickness and stacking factor | 0.10-0.35 mm material planning, drawing dependent | Thin material and stack quality control loss, heat, and mechanical stability in axial lamination stators. |
| Interlaminar insulation | Material coating and process dependent | Burrs or shorts between laminations can erase the expected eddy-current advantage. |
| Slot fill and winding resistance | Wire, turns, slot, and insulation design dependent | A lamination core is only useful if the winding package can be built, insulated, cooled, and tested. |
Laminations can be attractive for low-frequency, high-permeability designs where the magnetic path and winding method fit a silicon-steel process. SMC is stronger when 3D flux, high frequency, net-shape geometry, or segmented assembly justify it.
Yes. The RFQ should state whether the buyer wants lamination core only, wound core, insulated stator, impregnated stator, or final tested assembly.
No. We support component and process manufacturing scope. Final motor performance depends on buyer-side electromagnetic design, magnet system, rotor, cooling, drive, and validation.
Inquiry Email
Attach STEP/DXF/PDF plus frequency, flux density, sample quantity, annual forecast, and destination.
