Segmented Stator Lamination In China

We offer superior segmented stator laminations by high-speed stamping to meet client needs. The segmented structure enhanced thermal and cooling, making it ideal for electric vehicles, industrial servo controls, drones, and robotics.

Motorneo offers comprehensive motor lamination stacks services including stamping, bonding, winding, die-casting, and prototyping. Which can cooperate with clients to develop, design, and produce all kinds of motor cores, with stator diameters from 40mm to 1230mm.

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Capabilities For Segment Motor Lamination Design And Manufacture

We have a high-precision segmented motor core(a segmented motor lamination or segmented stator/rotor) process that employs progressive stamping production.

Segment Motor Core

The segmented motor core is composed of several iron cores. Each iron core’s inner measuring arc edge is concave to form a plurality of tooth slots. Then, the multiple rings punched are superimposed winding together, and the joints on the adjacent rings are staggered. Achieve a complete motor core.

We segmented motor stator cores are commonly configured with 12 slots and ten poles or 12 slots and 14 poles suitable for motors in automotive applications to save material use.

Considering the separate production of rotor and stator laminations, the width of the air gap is no longer determined by the limitations of the stamping tool. Therefore, our segmentation operation minimizes the clearance and increases the air gap flux and torque.

Benefits Of Segmented Motor Stator

Our motor lamination is constantly innovative in manufacturing and bringing forth the exceptional benefits of segment motor lamination.

Reduced Eddy Current Losses

Segmented laminations disrupt the paths of eddy currents, minimizing energy losses and improving overall motor efficiency.

Enhanced Thermal Management

Smaller segments enable better heat dissipation, preventing overheating and extending the motor’s lifespan.

Optimized Magnetic Flux

Precision-designed segments ensure uniform magnetic flux distribution, resulting in smoother and more efficient motor operation.

Precision Assembly

Smaller segment sections are easier to handle and assemble, streamlining the manufacturing process and reducing errors.

Reduced Material Waste

Segmentation minimizes material waste by allowing for the efficient use of raw materials during manufacturing.

Vibration Damping

Segmented cores can help dampen vibrations, resulting in quieter operation and improved motor performance.

Customization And Design Of Electric Motor Core

Our dedicated design team uses this method of customized segmented laminations that cater to diverse electrical machine(such as for electric motors, generators, and AC alternator cores) requirements. The versatility of segmented laminations transcends industries, finding applications in various sectors, such as electric vehicles, industrial equipment, and renewable energy.

segment motor stator
segment electric motor stator
Segmented Lamination Stacks
segmented electric motor core

Quality Control For Motor Stator Core Lamination

Motorneo adheres to quality first and has ISO/FDIS09001:2008 international certifications. Committed to providing customers with high speed and efficient motor lamination packs.

segment motor stator&motor lamination


Using silicon steel detectors check raw materials, such as electrical steel, to verify their quality coincident reference value.


CMM and image measure inspection of the lamination for dimensional accuracy ensure strict tolerances.


Simulating motor operation conditions to assess the core’s durability and resistance to mechanical stresses. Evaluating the core’s resistance to corrosion through exposure to varying environmental conditions.

Materials Used In Segmented Laminations

In producing segmented stator and rotor laminations, our raw materials include electrical steel(silicon steel or laminated steel), and amorphous alloys. The electrical steel thickness is 0.1mm-1mm, and the amorphous material thickness is 25μm.

segment stator material

Why Choose Us As Your Spliced Motor Lamination Stacks China Manufacturer?

At Motorneo, we serve laminations clients worldwide across diverse industries, including automotive(electric vehicles), industrial, drones, power tools, household appliances, renewable energy, etc.

Our 25T – 300T punching machines can stamp and interlock high-precision segment motor cores. The segmented stator laminations employ dovetail slot interlocked, welding, or bonding to form the complete circle motor laminate cores. Our multiple automation winding can achieve segmented winding to improve slot filling rate..

Customized services are our core project, according to your drawing to design and manufacture stator rotor laminations.

Segmented Motor Laminations FAQs

They are typically produced using high-precision laser cutting, stamping, or wire electrical discharge machining (EDM) processes to achieve the desired shape and tolerances.

Stamping and Die-Cutting: Stamping and die-cutting are primary processes to create individual laminations from thin electrical steel sheets. Stamping involves using precision dies to cut and shape the laminations from the steel sheets.

Lamination Insulation: The laminated surfaces apply coatings, varnishes, or insulating films to prevent electrical conductivity between them.

Stacking: The stacking(such as riveting, cleating, laser welding, TIG+MIG welding, gluing, and self-bonding) method of tight laminations stacks the sheets together to form the motor core.

Annealing: Annealing is a heat treatment process that helps optimize the magnetic properties of the laminations.

Precision Machining: To achieve specific dimensional tolerances or surface finishes using machining or grinding processes.

Segment motor lamination self-adhesive technology plays a significant role in enhancing the efficiency and performance of new energy vehicles, particularly electric vehicles (EVs). By utilizing self-adhesive technology in motor lamination stacks, air gaps and magnetic flux leakage are minimized, leading to improved electric motor efficiency.

Get Quality Segment Electric Motor Lamination

Improve electric motors efficence with our high-quality segmented stator laminations. Let us explore custom solutions tailored to your needs.