Interlocked Stack
Interlock points, stack height and datums are defined to the approved lamination drawing.
Motor Stator · Stator Core Assembly
Motor Stator Assembly Manufacturer
We manufacture electrical-steel stator cores and lamination stacks to customer drawings. Supply boundary: stator core / lamination stack only. Copper windings, coil winding, impregnation, and lead wires are excluded.
- Stator core / lamination stack only
- 0.20–0.65 mm electrical-steel laminations
- 30–1150 mm OD and 5–600 mm stack-height reference envelope
Core configurations
Motor Stator Core Options
Each structure is reviewed from the electrical-steel lamination drawing, stack method, critical datums and inspection requirements.
Motor Stator Assembly Technical Specifications
| Parameter | Specification / Range |
|---|---|
| Product Type | Motor stator core assembly / electrical-steel lamination stack |
| Material Grade | 35A300–50W470 reference family; final grade follows the approved loss and frequency requirement |
| Lamination Thickness | 0.20–0.65 mm reference range |
| Outer Diameter | 30–1150 mm reference range; geometry and tooling dependent |
| Stack Height | 5–600 mm reference range |
| Magnetic Flux Density | ≥1.6 T conditional project target under the agreed test condition |
| Core Loss | ≤2.0 W/kg at 50 Hz for selected low-loss grades under the agreed test condition |
| Burr / Flatness | Burr ≤0.02 mm and flatness ≤0.03 mm as conditional drawing targets |
| Stacking Method | Interlocked, bonded, welded, riveted or clamped according to drawing and geometry |
| Operating Temperature | –40°C to +180°C, subject to electrical-steel coating and project validation |
| Supply Boundary | Stator core / lamination stack only; copper winding, coil insertion, terminals, bus bars, VPI and winding tests 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 & Lamination
- 35A300–50W470 electrical steel with 0.20–0.65 mm laminations supports loss and manufacturability review.
- Core Size Range
- 30–1150 mm OD and 5–600 mm stack height cover development from compact to large stator-core projects.
- Magnetic Targets
- Selected grades can be reviewed to ≥1.6 T flux density and ≤2.0 W/kg at 50 Hz under agreed test conditions.
- Dimensional Control
- Conditional targets of burr ≤0.02 mm and flatness ≤0.03 mm support stacking consistency and housing fit.
Product and supply scope
What is a Motor Stator Assembly?
A Motor Stator Assembly is the stationary electromagnetic core of an electric motor, built from precision-stamped electrical-steel laminations that are stacked, joined, and finished to customer-approved drawings. GX manufactures the stator iron core and lamination stack only — controlling material grade, lamination geometry, stack height, joining method, and inspection datums. Copper wire, coil winding, winding insertion, terminals, bus bars, sensors, VPI (Vacuum Pressure Impregnation), and winding electrical tests are outside the supply scope and sourced by the customer separately.
Stator Core Deliverablehe deliverable is the stator iron core or lamination stack, produced to the approved drawing and inspected against released dimensional datums. No winding, insulation treatment, or electrical testing is included.
Material ControlElectrical-steel grade, coating type, and lamination thickness are specified and locked before sample approval, ensuring consistent magnetic performance across production batches.
Dimensional ControlOD, bore diameter, slot geometry, stack height, and critical datums follow the released drawing. Burr is controlled to ≤0.02 mm and flatness to ≤0.03 mm per drawing requirements.
Out-of-Scope ItemsCopper winding, coil insertion, terminals, bus bars, sensors, VPI, and winding electrical tests are not supplied. Customers source these processes through winding specialists or motor integrators.
Core manufacturing route
From Drawing Review to Approved Stator Core
The route focuses on electrical-steel selection, lamination geometry, stacking, joining and dimensional inspection.
Drawing Review
OD, bore, slots, tooth width, yoke, stack height, datums and annual volume requirement are reviewed.
Material Review
Electrical-steel grade, thickness, coating and loss target are confirmed.
Tooling Route
Laser-cut samples or stamping tooling are selected based on order volume and part geometry.
Lamination Production
Slot profile, bore, OD, burr and lamination flatness are controlled to drawing requirements.
Stack and Join
Interlocking, bonding, welding, riveting or clamping is applied as specified.
Core Inspection
Dimensions, stack height, flatness, concentricity, runout and burr are inspected and recorded.
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 Motor Stator Cores Fit Motor Projects
Application suitability depends on material grade, lamination thickness, slot geometry, stack dimensions, joining method and operating duty.
Industrial Motors
Core dimensions, slots and stack construction are controlled for the approved motor frame and rotor interface.
Pump and Compressor Motors
Bore, housing fit and lamination condition are reviewed for repeatable assembly.
HVAC and Appliance Motors
Loss target, noise-related geometry and production consistency follow the released drawing.
Large Custom Motors
Segmented or large-diameter stator cores are evaluated from drawings, volume and inspection access.
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
Motor Stator Assembly 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 Motor Stator Assembly
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