One-Piece Core
Single-piece laminations are reviewed for material utilization, tooling approach and bore accuracy.
Custom Motor · Drawing-Based Stator Core
Custom Motor Stator Core Manufacturer
Custom electrical-steel stator cores and lamination stacks manufactured to customer drawings for non-standard motor designs. Supplied as stator iron core / lamination stack only — copper winding not included.
- Custom stator core / lamination stack only
- 0.10–0.65 mm electrical-steel reference envelope
- 30–1150 mm OD and 5–600 mm stack-height reference envelope
Core configurations
Custom Motor Core Options
Each structure is reviewed against the electrical-steel lamination drawing, stack method, critical datums and inspection requirements. Configurations can be combined per motor design.
Custom Motor Stator Core Technical Specifications
| Parameter | Specification / Range |
|---|---|
| Product Type | Custom motor stator core / electrical-steel lamination stack |
| Material Grade | 10A1200–65W1000 non-oriented electrical-steel reference family (JIS C 2552 / IEC 60404-8-4); drawing-specified grades available on request |
| Lamination Thickness | 0.10–0.65 mm reference envelope across different project categories |
| Outer Diameter | 30–1150 mm reference envelope; category and geometry dependent |
| Stack Height | 5–600 mm reference envelope |
| Core Structure | One-piece, segmented, straight-slot, skewed, or axial-flux geometry (evaluated per project) |
| Magnetic Flux Density | ≥1.69 T at B₅₀ (5000 A/m), per IEC 60404; ≥1.60 T minimum across the grade range |
| Core Loss | 2.0–4.7 W/kg at 1.5 T, 50 Hz, grade-dependent (per IEC 60404-2); ≤2.0 W/kg achievable with drawing-specified ultra-low-loss grades |
| Burr / Flatness | Burr ≤0.02 mm (sheet ≤0.35 mm) / ≤0.03 mm (sheet 0.50 mm) / ≤0.04 mm (sheet 0.65 mm); Flatness ≤0.03 mm (OD ≤200 mm) / ≤0.08 mm (OD 200–500 mm) / ≤0.15 mm (OD 500–1150 mm), per drawing |
| Operating Temperature | –40°C to +180°C, subject to grade, coating and project validation |
| Supply Boundary | Custom stator iron core only; copper winding and winding-related assembly or electrical testing are excluded |
Core capability
Four Parameters for Initial Engineering Review
Each point combines a measurable range with its relevance to stator-core sourcing. Final values are confirmed against the approved drawing and test condition.
- Material Envelope
- 10A1200–65W1000 materials and 0.10–0.65 mm laminations provide a clear starting range for drawing review.
- Custom Size Range
- 30–1150 mm OD and 5–600 mm stack height cover compact, medium and large custom core categories.
- Magnetic Targets
- ≥1.69 T at B₅₀ and 2.0–4.7 W/kg at 1.5 T, 50 Hz, grade-dependent; ≤2.0 W/kg achievable with drawing-specified ultra-low-loss grades.
- Acceptance Targets
- Conditional burr ≤0.02 mm, flatness ≤0.03 mm (size-dependent) and –40°C to +180°C service range are confirmed per project.
Product and supply scope
What is a Custom Motor Stator Core?
A custom motor stator core is a non-standard laminated electrical-steel component built to customer drawings for motor architectures that fall outside standard catalog ranges. Each project is reviewed against seven engineering parameters—material grade, lamination thickness, slot geometry, stack construction, joining method, inspection datums, and production volume—to ensure the core meets the exact motor design requirements.
The deliverable is the stator iron core or lamination stack only. Copper winding, coil insertion, VPI, terminals, bus bars, sensors, and winding electrical tests are outside the supply scope.
Core-only supplyThe deliverable is the stator iron core or lamination stack, manufactured and inspected to the approved drawing revision.
Material controlElectrical-steel grade, insulation coating, and lamination thickness are locked at initial sample approval and remain fixed for series production.
Dimensional controlOD, bore, tooth width, slot geometry, stack height, and reference datums are verified against the released drawing.
Excluded scopeCopper winding, coil insertion, VPI, winding-related assembly, and winding electrical tests are not included in the supply scope.
Core manufacturing route
From Drawing Review to Approved Stator Core
The process covers electrical-steel selection, lamination geometry, tooling approach, stacking, joining and dimensional inspection
Drawing Review
OD, bore, slot count, slots, tooth width, yoke, stack height, lamination thickness, reference datums and production volume are reviewed.
Material Review
Electrical-steel grade, lamination thickness, insulation coating, core loss target and magnetic flux density (B₅₀) are confirmed.
Tooling Route
Tooling Approach — Laser-cut samples, wire-EDM or stamping tooling are selected based on production volume and part geometry.
Lamination Production
Slot profile, bore, OD, tooth width, yoke thickness, burr height and lamination flatness are verified against the drawing.
Stack and Join
Interlocking, bonding, welding, riveting or clamping is applied as specified; stack height is controlled within drawing tolerance.
Core Inspection
OD, bore, slot dimensions, stack height, flatness, concentricity, perpendicularity, runout and burr height are recorded; surface and coating integrity are visually inspected.
Core inspection
Inspection Connects Lamination Quality to Motor Fit
The control plan follows the approved drawing and agreed dimensional or magnetic test condition.
| Inspection Item | Control Approach | Buyer Relevance |
|---|---|---|
| OD / bore / slots | Critical geometry and datums checked by agreed gauges or measurement method | Controls housing fit, rotor clearance and slot consistency |
| Stack height | Measured after the specified stacking and joining route | Controls active length and motor assembly position |
| Burr / flatness | Conditional targets ≤0.02 mm / ≤0.03 mm where stated on the drawing | Supports lamination contact, fit and downstream assembly |
| Concentricity / runout | Bore and outer datums evaluated to the approved inspection plan | Supports stable rotor air gap |
| Material / loss | Grade records and agreed magnetic test conditions linked to the project | Connects supplied steel to the approved electromagnetic design |
Application fit
Where Custom Motor Cores Fit Motor Projects
Application suitability depends on material grade, lamination thickness, slot geometry, stack dimensions, joining method and operating duty.
Special Industrial Motors
Non-standard slots, diameters and stack structures are reviewed from the motor drawing.
Axial-Flux Concepts
Selected axial-flux iron-core geometries are evaluated for material, segmentation and assembly access.
Large Segmented Motors
Segment joints, circumferential assembly and dimensional inspection are defined before quotation.
Prototype Motor Programs
Laser-cut development and later stamping routes are compared against quantity and repeatability requirements.
Quality-system support
Drawing and Change Control for Stator Iron Cores
GX Magnet applies its IATF 16949 quality system to drawing revision, material confirmation, sample approval and project-defined core inspection.
Revision ControlMaterial, lamination geometry, stack method and datums follow the approved revision.
Sample ApprovalInitial dimensions and agreed inspection results are recorded before recurring production.
Production InspectionInspection scope and sampling expectations are aligned before release.
Project-specific inspection records and magnetic data can be provided according to the approved drawing and agreed test conditions.
Buyer communication
Bring the Stator-Core Drawing, Not Only a Product Name
GX uses industrial exhibitions to discuss electrical-steel materials, stator-core structures and drawing-based manufacturing with OEM engineers and sourcing teams.
Bring OD, bore, slot profile, stack height, material grade, annual demand and inspection requirements to define the quotation route.
Core ReviewCompare one-piece, segmented, straight and skewed stack options.
Engineering DiscussionReview material, slots, datums, fit and operating duty.
Supplier EvaluationPlan drawing control, samples, inspection evidence and recurring communication.
GX Magnet
Magnetic-Material and Motor-Core Experience Since 1992
GX Magnet supports drawing-based stator iron-core and magnetic-component projects for automotive, appliance, pump, HVAC and industrial applications.
Material ReviewElectrical-steel grade, thickness and coating are matched to the stated duty.
Drawing-Based ProjectsGeometry, tooling, samples and inspection criteria follow approved revisions.
OEM CommunicationEngineering and sourcing teams receive a clear RFQ input list and core-only supply boundary.
30+ Years Serving Clients Worldwide
FAQ
Custom Motor Stator Core Sourcing Questions
These answers define the stator iron-core supply scope and initial engineering review.
What does GX supply on this page?
GX supplies the electrical-steel stator iron core or lamination stack defined by the approved drawing.
Does the supplied stator core include winding?
No. Copper wire, coils, winding, terminals, bus bars, VPI and winding electrical tests are not included.
Are the published ranges guaranteed for every design?
No. They are initial screening ranges. Final capability depends on material, geometry, tooling, stack method and inspection requirements.
What should an RFQ contain?
Provide 2D/3D drawings, material grade, lamination thickness, OD, bore, slot geometry, stack height, critical tolerances, sample quantity and annual demand.
Request for quotation
Request a Quote for Custom Motor Stator Core
Include the stator-core drawing, material, dimensions, stack method, inspection requirements, sample quantity and annual demand.
- OD, bore, slots, tooth, yoke, stack height and datums
- Electrical-steel grade, thickness, coating and loss target
- Joining method, burr, flatness, concentricity and runout
- Operating duty, sample quantity and annual demand