Custom Stator Core Manufacturer
From prototype development to high-volume production, we manufacture custom stator cores for EV motors, BLDC motors, servo motors, industrial motors, generators, and other electric motor applications.
Custom stator cores are manufactured according to specific motor designs, including dimensions, slot geometry, stack height, lamination thickness, and electrical steel grade. Customized core solutions help optimize magnetic performance, reduce core loss, improve motor efficiency, and ensure precise stator-rotor assembly. With flexible manufacturing processes such as progressive stamping, automatic stacking, laser welding, bonding, and precision inspection, custom stator cores can meet the requirements of BLDC, PMSM, EV, servo, industrial, and other motor applications.
Why Choose Custom Stator Cores?
Custom Stator Cores View
What Can We Customize?
Geometry
Outer Diameter
Slot Design
Slot Number
Material
NGO Electrical Steel
Surface Treatment
C3/C5 Coating
Manufacturing Volume
Prototype
Assembly
Interlocking
From prototype to mass production, we manufacture custom stator cores according to your drawings, specifications, and performance requirements.
Inner Diameter
Stack Height
Slot Shape
Tooth Width
Different Steel Grades
Thickness Options
Welding
Bonding
Rust Protection
Small Batch
Mass Production
Riveting
Engineering Support
Drawing & Specification Review
DFM Analysis
Material Selection
Tooling & Die Design
We provide engineering support throughout the custom stator core development process, from drawing review and material selection to tooling design, prototype validation, process optimization, and mass production. Our engineering team works with customer drawings and motor requirements to optimize lamination geometry, slot design, stack height, tolerances, and manufacturing methods, helping ensure reliable performance, efficient production, and consistent quality.
Prototype Development
Process Optimization
Dimensional & Performance Validation
Mass Production Support
Manufacturing Capability
Precision Progressive Stamping
High-speed stamping for accurate and consistent stator laminations.
Custom Tooling & Dies
Customized progressive dies for different stator designs and production requirements.
Automatic Stacking
Automated alignment and stacking for consistent core height and concentricity.
Interlocking Technology
Secure lamination stacking with precise interlocking points.
Laser Welding
Precision welding for strong and stable stator core assemblies.
Bonding Technology
Adhesive bonding for uniform and structurally stable core stacks.
Precision Inspection
Dimensional, burr, flatness, concentricity, and stack height inspection.
Prototype to Mass Production
Flexible production capacity from prototypes and small batches to high-volume orders.
Our custom stator core manufacturing capabilities cover the complete production process, from precision tooling and progressive stamping to automatic stacking, welding, bonding, inspection, and mass production.
Manufacturing Process
Customer Drawing Review
Material Selection
Tooling Design & Manufacturing
Progressive Stamping
Lamination Inspection
Automatic Stacking
Interlocking / Welding / Bonding
Final Inspection & Packaging
Review motor drawings, technical specifications, tolerances, and production requirements.
Select suitable non-oriented electrical steel grade and lamination thickness based on motor performance requirements.
Design and manufacture precision progressive dies according to the customized stator geometry.
Produce precision stator laminations with controlled dimensions, slot geometry, and burr height.
Inspect stamped laminations for dimensions, surface condition, burr height, and critical features.
Precisely align and stack laminations to achieve consistent stack height and concentricity.
Secure the stacked laminations using the appropriate assembly technology for the motor design.
Conduct comprehensive quality inspection before protective packaging and shipment.
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Industries We Serve
Electric Vehicles & eMobility
Traction motors, auxiliary motors, and electric drive systems
Industrial Automation
Servo motors, actuators, robotics, and automated equipment
HVAC & Refrigeration
Compressors, fans, blowers, and air-conditioning systems
Pumps & Water Systems
Water pumps, circulation pumps, and industrial pumping equipment
Power Tools
Cordless tools, drills, grinders, and other high-speed motors
Household Appliances
Washing machines, vacuum cleaners, fans, and kitchen appliances
Industrial Motors
Motors for machinery, conveyors, compressors, and production equipment
Energy & Renewable Systems
Generators, energy systems, and other high-efficiency motor applications
We provide customized stator core solutions for a wide range of motor-driven industries, supporting different motor designs, performance requirements, and production volumes.
Technical Specifications
Specification
Typical Options / Description
Core Type
Custom Stator Core
Material
Non-Oriented Electrical Steel (NGO)
Steel Grade
Customized according to motor design
Lamination Thickness
0.15 / 0.20 / 0.25 / 0.30 / 0.35 / 0.50 mm
Outer Diameter (OD)
Customized
Inner Diameter (ID)
Stack Height
Slot Number
Customized
Customized
Customized
Slot Geometry
Customized according to motor design
Tooth Width
Customized
Yoke Thickness
Interlocking / Welding / Bonding
Stacking Method
According to customer drawings
Dimensional Tolerance
Controlled according to specifications
Concentricity
Controlled according to specifications
Flatness
Controlled according to quality requirements
Burr Height
According to selected electrical steel grade
Core Loss
According to material specification
Insulation Coating
Clean and free from visible defects
Surface Condition
Dimensional / Burr / Flatness / Concentricity / Visual
Inspection
Prototype / Small Batch / Mass Production
Production Volume
Fully customized to customer drawings and specifications
Customization
Motor Type
BLDC / PMSM / EV / Servo / Industrial / Custom
Customized
Tooling
Custom Progressive Dies
Quality Control
Material Inspection
Verify electrical steel grade, thickness, surface condition, and material certificates.
Dimensional Inspection
Check outer diameter, inner diameter, shaft hole, slot geometry, and critical dimensions.
Burr Inspection
Control stamping burr height to ensure proper lamination quality and assembly consistency.
Flatness Inspection
Verify lamination and core flatness to prevent deformation during rotor assembly.
Concentricity Inspection
Measure the relationship between critical diameters to ensure accurate rotor alignment and air-gap consistency.
Stack Height Inspection
Verify the assembled core height and lamination alignment against specified tolerances.
Core Loss Testing
Evaluate magnetic losses to confirm the selected material and core performance meet requirements.
Final Inspection
Conduct comprehensive visual, dimensional, and structural checks before packaging and shipment.
Our quality control system covers the complete manufacturing process, from incoming electrical steel inspection to final stator core inspection, ensuring consistent dimensions, stacking accuracy, magnetic performance, and product reliability.
Frequently Asked Questions
Can you manufacture according to our drawings?
Yes. We can manufacture custom stator cores according to customer drawings, 2D/3D CAD files, technical specifications, and performance requirements. Our engineering team reviews the design, confirms critical dimensions and tolerances, selects suitable electrical steel, and develops the required tooling and manufacturing process. From prototype production to mass manufacturing, we can provide customized stator core solutions with controlled dimensions, slot geometry, stack height, concentricity, flatness, and overall quality.
What file formats do you accept (DWG, DXF, STEP, IGES)?
We accept common 2D and 3D engineering file formats, including DWG, DXF, STEP, and IGES. Customers can also provide PDF drawings, technical specifications, tolerance requirements, and related motor design documents. Our engineering team reviews the submitted files to confirm manufacturability, tooling requirements, critical dimensions, and production specifications before starting development.
Can you produce prototypes before mass production?
Yes. We can produce custom stator core prototypes before mass production to verify the design, dimensions, material selection, stacking method, and overall manufacturability. Prototype development helps identify potential issues and optimize the manufacturing process before moving to full-scale production, reducing development risk and ensuring a smoother transition to small-batch and mass production.
What is the typical tooling lead time?
Typical tooling lead time is approximately 3–4 weeks, depending on the stator core design, tooling complexity, material requirements, and production specifications. After receiving the final drawings and technical requirements, our engineering team evaluates the design and confirms the tooling schedule before production. Prototype trials and tooling validation are completed before mass production to ensure dimensional accuracy and manufacturing stability.
What is your minimum order quantity?
Our MOQ is flexible and depends on the stator core design, tooling requirements, production volume, and project stage. We can support prototype development, small-batch orders, and mass production, allowing customers to validate their designs before moving to larger production quantities. For a specific MOQ, please provide your drawings, required quantity, and target application for evaluation.
Do you sign NDAs if required?
Yes. We can sign a Non-Disclosure Agreement (NDA) when required to protect customer drawings, technical specifications, product designs, and other confidential information. Confidential project information is handled only by authorized personnel and used solely for engineering, tooling, production, and quality requirements related to the project.
Upload your CAD files and detailed specifications for a rapid review by our metallurgical and die design engineers. We are ready to assess your project requirements with precision and efficiency.