AFPM SMC stator manufacturing for axial flux motors with 3D tooth geometry, winding clearance review, resin insulation coating, and validation planning.
The AFPM SMC stator datasheet is an RFQ planning guide, not a catalog guarantee. Final geometry, tolerances, density, coating, winding interface, and validation scope are confirmed against buyer CAD, assembly method, and operating point.
| Parameter | RFQ Planning Range | Engineering Note |
|---|---|---|
| Supported AFPM stator shapes | One-piece circular ring, sector/fan segment, segmented stator, individual tooth module, or optimized 3D tooth/yoke feature | Shape choice should be reviewed against topology, compaction direction, demolding, winding access, and air-gap datum control. |
| Outer / inner diameter envelope | OD 30-800 mm; ID 25 mm min. | Final limits depend on air-gap datum, press direction, tool strength, tooth geometry, and local density balance. |
| Axial height | 5-110 mm | Tall teeth or deep slots need density gradient, green strength, ejection, coating coverage, and handling review. |
| Slot count planning range | 3-112 slots | Slot opening, copper fill, bobbin clearance, tooth pitch, and potting space should be reviewed before tooling. |
| Tooth and yoke geometry | Chamfered tooth, reduced yoke thickness, tapered 3D tooth, slot opening, tooth pitch, draft, corner radius, and datum face review | Complex tooth geometry can help axial-flux packaging, but it also drives compaction pressure, ejection, micro-crack, and density-risk review. |
| Winding access envelope | Bobbin winding, concentrated winding, pre-wound tooth, post-assembly winding review, or hairpin/flat-wire feasibility review | This page should not promise a fixed slot-fill gain. The practical winding path and insulation clearance must be proven from the buyer assembly. |
| Resin insulation coating | Coating before winding, coating area map, target thickness window, masking boundary, visual criteria, and Hi-pot scope when required | Coating can protect winding-adjacent SMC surfaces, but it changes slot clearance, heat path, and acceptance criteria. |
| Mechanical bonding / curing / potting boundary | Adhesive bonding, curing support, potting boundary, carrier or housing interface, and fixture note by project scope | The quote should separate pressed core supply from coating, bonding, potting, fixture, or assembled-stator responsibility. |
| Material and density route | Insulated iron-powder SMC, buyer-nominated Somaloy family, or performance-selected SMC route; 7.4-7.6 g/cm3 target where geometry and process allow | Density, permeability, strength, and loss targets must be tied to the selected grade, compaction route, heat treatment, and magnetic test condition. |
| Critical interface controls | Flatness, parallelism, circular pitch, and datum scheme per drawing | AFPM output is sensitive to axial air-gap variation, stator-to-rotor stack-up, and cumulative segment pitch error. |
| Inspection and release package | FAI, CMM or 3D scan, CTQ dimensions, density or weight check, B-H, core loss, coating note, Hi-pot when scoped, traceability, and packing record | Engineering, sourcing, and SQE should agree which records are needed before sample shipment. |
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.
Evidence to Prepare
Assembly section, topology type, slot/pole count, winding route, slot opening, bobbin or tooth-module concept, air-gap datum, CTQ list, and DFM notes.
Acceptance Focus
Prevents the common failure where a pressed stator looks correct but cannot be wound, insulated, potted, or assembled into the motor stack.
Evidence to Prepare
SMC or Somaloy grade, density target, frequency, waveform, flux-density target, temperature condition, B-H requirement, core-loss method, and sample IDs.
Acceptance Focus
Lets R&D compare SMC, lamination, and PCB stator routes using the same motor condition instead of generic material claims.
Evidence to Prepare
Coating area map, coating thickness target, masking boundary, Hi-pot scope, adhesive or potting boundary, thermal-path note, visual criteria, and inspection record.
Acceptance Focus
Reduces late-stage assembly failures caused by coating thickness, slot-clearance loss, thermal-path change, or unclear supplier responsibility.
Evidence to Prepare
FAI, CMM or 3D scan, CTQ table, density or weight record, B-H or core-loss report when scoped, coating or Hi-pot note, traceability, sample acceptance sheet, and packing record.
Acceptance Focus
Turns early AFPM stator samples into records that support design review, supplier approval, pilot sourcing, and repeat-order control.
| Buyer Checkpoint | Evidence to Prepare | Acceptance Focus |
|---|---|---|
| Can the AFPM topology and winding route be reviewed before SMC tooling is released? | Assembly section, topology type, slot/pole count, winding route, slot opening, bobbin or tooth-module concept, air-gap datum, CTQ list, and DFM notes. | Prevents the common failure where a pressed stator looks correct but cannot be wound, insulated, potted, or assembled into the motor stack. |
| Can material grade, density target, and magnetic validation be tied to the real operating point? | SMC or Somaloy grade, density target, frequency, waveform, flux-density target, temperature condition, B-H requirement, core-loss method, and sample IDs. | Lets R&D compare SMC, lamination, and PCB stator routes using the same motor condition instead of generic material claims. |
| Can insulation coating, Hi-pot, potting, bonding, and curing scope be audited before samples ship? | Coating area map, coating thickness target, masking boundary, Hi-pot scope, adhesive or potting boundary, thermal-path note, visual criteria, and inspection record. | Reduces late-stage assembly failures caused by coating thickness, slot-clearance loss, thermal-path change, or unclear supplier responsibility. |
| Can engineering, sourcing, and SQE receive the same AFPM stator release package? | FAI, CMM or 3D scan, CTQ table, density or weight record, B-H or core-loss report when scoped, coating or Hi-pot note, traceability, sample acceptance sheet, and packing record. | Turns early AFPM stator samples into records that support design review, supplier approval, pilot sourcing, and repeat-order control. |
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 |
|---|---|---|
| Stator format | One-piece circular ring, sector/fan segment, segmented stator, or tooth-module SMC stator | The format drives tooling cost, winding access, fixture strategy, serviceability, pitch control, and supplier responsibility. |
| Winding clearance | Bobbin, concentrated winding, pre-wound tooth, post-assembly winding, or hairpin/flat-wire feasibility review | A good magnetic geometry can still fail if copper, insulation, coating, and potting cannot physically fit. |
| Air gap control | Flatness, parallelism, circular pitch, datum scheme, and stator-to-rotor stack-up per drawing | AFPM output is highly sensitive to axial air gap variation and stator flatness. |
| Density and material route | Buyer-nominated or performance-selected SMC route; 7.4-7.6 g/cm3 target where geometry and compaction allow | Density affects permeability, loss behavior, mechanical strength, and repeatability of thin tooth or sector features. |
| Insulation and thermal boundary | Resin coating, optional Hi-pot, varnish or impregnation boundary, potting, bonding, curing, and cooling-interface review | The stator core has to survive winding, voltage stress, thermal exposure, and assembly release rather than only pass dimensional review. |
Yes. Send the segment CAD, full stator assembly, datum scheme, winding route, retention method, pitch tolerance, and required inspection points so tooling and tolerance risk can be reviewed.
The RFQ scope can review circular one-piece stators, sector or fan-shaped segments, segmented stator rings, individual tooth modules, and optimized 3D tooth or yoke geometry. Final feasibility depends on press direction, demolding, density balance, and winding access.
They can be scoped when the buyer provides coating areas, thickness expectations, voltage or Hi-pot requirement, masking boundary, and visual criteria. Coating must be reviewed with slot clearance and thermal path before release.
The page supports winding-interface review and project-scope discussion. The practical supply boundary must state whether the quote includes pressed SMC parts only, coating, winding preparation, winding/impregnation support, potting, or assembled-stator evidence.
No. OD 30-800 mm, ID 25 mm minimum, 5-110 mm axial height, and 3-112 slots are RFQ planning ranges. Final acceptance depends on buyer CAD, material grade, compaction route, tolerances, coating, winding interface, and validation method.
A useful sample package normally includes FAI, CMM or 3D scan data, CTQ dimensions, density or weight check, B-H or core-loss results when scoped, coating or Hi-pot notes, traceability, sample IDs, and packing records.
Inquiry Email
Attach STEP/DXF/PDF plus frequency, flux density, sample quantity, annual forecast, and destination.
