Precision silicon steel motor cores in a modern production environment
SILICON STEEL · MOTOR CORE MANUFACTURING

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.

SEND YOUR DRAWING ↗VIEW CAPABILITIES ↓
0.35 / 0.50 MM REGULAR GRADESSTATOR & ROTOR CORESEI / UI / DRAWING-BASEDIATF 16949:2016 CERTIFIED
2006Shuaijin established
in Jiangyin, Jiangsu
20,000+Tonnes annual
production capacity
100+In-house
mould sets
IN-HOUSESlitting, stamping
and annealing route
PRODUCT PLATFORM

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.

Precision EI laminations and motor core products
FULL-SERIES MOTOR CORE SUPPLYSTANDARD + CUSTOM
APPLICATION FIELDSNEW ENERGYAUTOMOTIVEINDUSTRIAL SERVOHOUSEHOLD APPLIANCESWIND POWER
TYPICAL PROJECT WORKFLOW

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 motor-core tooling and sampling workflow
Representative servo rotor core productREPRESENTATIVE PRODUCT
MOTOR-CORE TOOLING WORKFLOWDRAWING → TOOLING → SAMPLE → PRODUCTION
TYPICAL 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.

PROJECT NEED
  • Review a non-standard core geometry
  • Define material and tolerance requirements
  • Establish a repeatable inspection route
SHUAIJIN RESPONSE
  • 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 MANUFACTURING

One manufacturing base.
One controlled route.

Material preparation, precision forming, heat treatment, tooling, sampling and inspection are coordinated through a defined project route.

Shuaijin silicon steel slitting production line
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
Shuaijin high-speed stamping production workshop
02 / FORMING

Precision Stamping

More than 60 high-speed stamping lines support standard and drawing-based production.

Stamping lines
60+
Shuaijin in-house silicon steel annealing line
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
Shuaijin motor-core tooling and die development equipment
04 / TOOLING

Motor-Core Tooling & Die Development

Die design, fabrication, tryout and maintenance support standard and drawing-based laminations.

Tooling route
Drawing-specific
Motor-core trial stamping and sample inspection
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
Precision dimensional inspection of a laminated motor core
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.

Shuaijin motor-core tooling and die development equipment
Motor-core trial stamping and sample inspectionTRIAL STAMPING & SAMPLE CHECK
TOOLING / DIE TRYOUT
ENGINEERING SUPPORT

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.

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.
QUALITY EVIDENCE

Qualification backed
by visible proof.

The certificates shown are issued to Jiangsu Shuaijin Motor Technology Co., Ltd. and are available for supplier-qualification review.

Classified electrical-steel coil storage at Shuaijin
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.

IATF 16949 certificate issued to Jiangsu Shuaijin Motor Technology01 / AUTOMOTIVE QUALITY

IATF 16949:2016

Scope: manufacturing of iron cores for motors.
Valid to 19 May 2027.

VIEW CERTIFICATE ↗ ISO 14001 certificate issued to Jiangsu Shuaijin Motor Technology02 / ENVIRONMENT

ISO 14001:2015

Environmental management for motor-core manufacturing.
Valid to 15 January 2027.

VIEW CERTIFICATE ↗ 903 / UTILITY MODEL PATENT CERTIFICATES

Documented tooling and process IP

VIEW PATENT EVIDENCE ↗
Aerial view of the Shuaijin manufacturing base
JIANGSU SHUAIJIN MOTOR TECHNOLOGY

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.

2006Shuaijin founded
30,000 m²Production base
60+High-speed stamping lines
100+In-house mould sets
PROJECT APPROVAL ROUTE

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
  1. 01RFQ INPUT

    Project Requirements

    • Drawing or physical sample
    • Material grade and thickness
    • Quantity and application
    INPUT STATUSRFQ information complete
  2. 02ENGINEERING REVIEW

    Process & Tooling Plan

    • Geometry and tolerance review
    • Process and tooling definition
    • Inspection route alignment
    REVIEW STATUSProduction route confirmed
  3. 03SAMPLE REVIEW

    Sample Approval

    • Trial or sample production
    • Dimensional measurement
    • Buyer review and sign-off
    APPROVAL STATUSSample approved
  4. 04PRODUCTION

    Production & Delivery

    • Controlled batch production
    • Lot inspection and records
    • Export packing and shipment
    RELEASE STATUSProduction released
ENGINEERING INSIGHTS

Knowledge for better sourcing decisions.

Practical guidance on material selection, motor-core manufacturing and supplier qualification for engineering and procurement teams.

VIEW ALL INSIGHTS ↗
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 PROJECT

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
For drawings and attachments, email qingxuantang6@gmail.com after submitting.