SILICON STEEL · MOTOR CORE MANUFACTURINGPrecision motor cores.
Precision motor cores.
Engineered to perform.
Jiangsu Shuaijin Motor Technology Co., Ltd. manufactures stator and rotor cores, EI/UI laminations and drawing-based silicon-steel components with integrated tooling, stamping, annealing and inspection.
0.35 / 0.50 MM REGULAR GRADESSTATOR & ROTOR CORESEI / UI / DRAWING-BASEDIATF 16949:2016 CERTIFIED
PRODUCT PLATFORMMotor-core products and tooling
Motor-core products and tooling
matched to the drawing.
Shuaijin supplies standard and non-standard laminations and core assemblies. Material grade, thickness, geometry, die route, heat treatment, stacking or assembly method and inspection requirements are confirmed from the buyer's drawing or sample before quotation.
Stator & Rotor Cores
Servo, resolver, automotive auxiliary, appliance and industrial motor programs.
EI & UI Laminations
Standard transformer-core series and non-standard magnetic geometries.
Segmented & Outer-Rotor Cores
Segment, strip, outer-rotor and application-specific assemblies.
Motor-Core Tooling & Die Development
Die design and build, trial stamping, sample inspection and production-tool preparation for non-standard motor-core laminations.
APPLICATION FIELDSNEW ENERGYAUTOMOTIVEINDUSTRIAL SERVOHOUSEHOLD APPLIANCESWIND POWER
TYPICAL PROJECT WORKFLOWFrom concept to a
From concept to a
controlled production route.
A representative workflow for overseas servo-motor buyers, showing the information, approval gates and deliverables required before volume supply.
REPRESENTATIVE PRODUCTTYPICAL PROJECT WORKFLOW · MOTOR-CORE TOOLING AND SAMPLE APPROVAL
BUYER PROFILEOverseas servo-motor manufacturerRepresentative sourcing profile
From a non-standard rotor-core drawing to a controlled production route.
A buyer needs a laminated rotor geometry reviewed, tooled, sampled and prepared for repeat production while keeping drawing data and project tooling controlled.
- Review a non-standard core geometry
- Define material and tolerance requirements
- Establish a repeatable inspection route
- Engineering and manufacturability review
- In-house die development and trial stamping
- Sample inspection and buyer approval gate
01Drawing review→02Die & tryout→03Sample approval→04Production route
PROJECT DELIVERABLESReviewed specification · sample parts · inspection plan · defined production route
Workflow shown for capability reference. Final specifications and process routes are confirmed against each buyer's drawings and requirements.
INTEGRATED MANUFACTURINGOne manufacturing base.
One manufacturing base.
One controlled route.
Material preparation, precision forming, heat treatment, tooling, sampling and inspection are coordinated through a defined project route.
01 / MATERIAL
Slitting & Blank Preparation
Slitting equipment and classified coil storage support standard production and drawing-based processing.
- Regular thicknesses
- 0.35 / 0.50 mm
- Thin-gauge review*
- 0.23 / 0.27 / 0.30 mm
02 / FORMING
Precision Stamping
More than 60 high-speed stamping lines support standard and drawing-based production.
- Stamping lines
- 60+
03 / HEAT TREATMENT
In-house Annealing
Annealing is available when the agreed material and production route requires stress relief or project-specific magnetic-property control.
- Process definition
- Project-specific
04 / TOOLING
Motor-Core Tooling & Die Development
Die design, fabrication, tryout and maintenance support standard and drawing-based laminations.
- Tooling route
- Drawing-specific
05 / VALIDATION
Trial Stamping & Sample Approval
Trial parts are checked against agreed dimensions, burr, appearance and project-specific acceptance criteria before repeat production.
- Input
- Drawing / sample
06 / QUALITY
Dimensional & Magnetic Inspection
Core size, appearance, stack height and agreed magnetic characteristics are linked to the order.
- Equipment
- 2.5D VMM / CMM
- Performance
- Iron-loss testing
*Thin-gauge processing is subject to order volume, material availability and process review. Material grade, annealing parameters and acceptance criteria are confirmed for each project.
TRIAL STAMPING & SAMPLE CHECKENGINEERING SUPPORTIn-house tooling.
01Drawing reviewGeometry, material, thickness and critical-tolerance alignment. 02Die design & buildTooling route, manufacture, tryout and maintenance. 03Sample inspectionDimensions, burr, appearance and agreed checks. 04Production releaseBuyer approval, inspection plan and controlled repeat supply.
In-house tooling.
Controlled sample approval.
The published process covers drawing review, motor-core die design and fabrication, trial stamping, sample inspection, buyer approval and production-tool maintenance. Final tooling route and validation requirements are confirmed for each part.
QUALITY EVIDENCEQualification backed
Qualification backed
by visible proof.
The certificates shown are issued to Jiangsu Shuaijin Motor Technology Co., Ltd. and are available for supplier-qualification review.
RAW MATERIAL CONTROL
Electrical-steel coils by specified grade
Material supplier, grade, thickness and certificate requirements are confirmed for each order. Coil storage is organized by grade for production control and repeat orders.
01 / AUTOMOTIVE QUALITYIATF 16949:2016
Scope: manufacturing of iron cores for motors.
Valid to 19 May 2027.
02 / ENVIRONMENTISO 14001:2015
Environmental management for motor-core manufacturing.
Valid to 15 January 2027.
Documented tooling and process IP
VIEW PATENT EVIDENCE ↗
JIANGSU SHUAIJIN MOTOR TECHNOLOGYIntegrated motor-core manufacturing.
2006Shuaijin founded 30,000 m²Production base 60+High-speed stamping lines 100+In-house mould sets
Integrated motor-core manufacturing.
From material to inspected parts.
Founded in 2006, Jiangsu Shuaijin Motor Technology Co., Ltd. manufactures silicon-steel laminations and motor cores in Jiangyin, integrating material preparation, precision stamping, tooling and die development, annealing, assembly and inspection.
PROJECT APPROVAL ROUTEFrom RFQ input
From RFQ input
to approved production.
The route shows the information received, the reviews completed by Shuaijin and the approvals required before repeat production.
PROJECT INPUTSDrawing or sampleMaterial & toleranceVolume & destination
SHUAIJIN OUTPUTSFeasibility reviewTooling & sample planInspection & delivery plan
01RFQ INPUT Project Requirements
- Drawing or physical sample
- Material grade and thickness
- Quantity and application
02ENGINEERING REVIEW Process & Tooling Plan
- Geometry and tolerance review
- Process and tooling definition
- Inspection route alignment
03SAMPLE REVIEW Sample Approval
- Trial or sample production
- Dimensional measurement
- Buyer review and sign-off
04PRODUCTION Production & Delivery
- Controlled batch production
- Lot inspection and records
- Export packing and shipment
ENGINEERING INSIGHTS
Knowledge for better sourcing decisions.
Practical guidance on material selection, motor-core manufacturing and supplier qualification for engineering and procurement teams.
SUPPLIER QUALIFICATION
25 Aug 2026
What Buyers Should Check When Qualifying a Motor-Core Supplier
A buyer-focused checklist covering technical capability, quality evidence, sampling, traceability and approval controls.
READ INSIGHT ↗
PROCESS CONTROL
25 Aug 2026
From Stamping to Annealing: How Motor Cores Are Manufactured
Follow the controlled route from material preparation and precision stamping through annealing, assembly and inspection.
READ INSIGHT ↗MATERIAL SELECTION
25 Aug 2026
How to Select Silicon-Steel Thickness for Motor-Core Applications
A practical guide to evaluating material thickness, grade, geometry, tooling and validation requirements for motor-core applications.
READ INSIGHT ↗BUYER QUESTIONS
Answers buyers need before sourcing.
Clear answers based on Shuaijin's published capabilities, manufacturing information and current certificates.
What motor-core products does Shuaijin manufacture?
Shuaijin manufactures stator and rotor cores, EI and UI laminations, segmented and outer-rotor cores, and drawing-based custom silicon-steel components.
What silicon-steel thicknesses are shown?
Shuaijin's regular thicknesses are 0.35 mm and 0.50 mm. Processing of 0.23, 0.27 and 0.30 mm material is subject to order volume, material availability and process review; final grade and route are confirmed per drawing.
Does Shuaijin support custom drawings and samples?
Yes. The published workflow covers drawing review, die design and fabrication, trial stamping, sample inspection, buyer approval and controlled repeat production.
Which processes are handled in-house?
The manufacturing route shown on this site includes slitting and blank preparation, precision stamping, tooling and die development, trial stamping, annealing, core assembly and inspection.
Which current certificates are displayed?
The site displays IATF 16949:2016 for manufacturing iron cores for motors, valid to 19 May 2027, and ISO 14001:2015, valid to 15 January 2027. Buyers can open the certificate images for qualification review.
What should a buyer include in an RFQ?
Provide a drawing or sample, material grade and thickness, key tolerances, estimated quantity, application, delivery format and destination. MOQ and lead time are confirmed only after technical review.
START A PROJECTSend the drawing.
Send the drawing.
Define the requirement.
Include material grade, thickness, delivery format, estimated quantity, application and destination where available.
Email: qingxuantang6@gmail.comPhone: +86 137 7676 0165WhatsApp: +86 137 7676 0165