Electric Motor Laminations In China

Lamnow is a premier manufacturer specializing in electrical steel lamination production. We manufactured generators, transformers, and electric motor laminations.

lamination stacks services

lamination stacks services

Precision And Innovation

Our motor laminations are applied in various industries, such as new energy, automotive, transportation, industrial manufacturing, and renewable energy.

Custom Motor Lamination Stacks Product

Explore our custom electric motor laminations, featuring self-bonding, segmented stator, and axial flux stator options. Our lamination stacks cater to diverse applications such as new energy vehicles, electric tools, industrial machinery, renewable energy, aerospace drones, and household appliances. Delivering tailored solutions for efficient and reliable motor performance.

new energy vehicles electric motor laminations

New energy vehicles motor laminations

Electric vehicles usually use PMSMs core and induction motor (IM) iron core. The axial flux stator lamination core is also used in EVs.

automotive motor laminations

Automotive Motor Laminations

DC brushless and brushed motor cores are mainly used in the field of automotive motors, including seat motors, wiper motors, power steering motors, oil pump motors, fan motors, etc.

hub motor laminations

Hub Motor Laminations

The in-wheel motor core is made of silicon steel sheets and is usually used as a drive motor in electric vehicles, bicycles, tricycles, hoverboards, scooter, etc.

HEV motor laminations

hybrid electrical vehicle motor laminations

Hybrid vehicles typically use a diesel generator and an electric-driven motor to work together to improve fuel efficiency and reduce tailpipe emissions.

power tools motor laminations

Power Tool Motor Laminations

Inverse-speed motor iron cores and DC motor cores are mainly used in the field of power tools, such as hammer drills, grinders, electric screwdrivers, and other equipment.

electric motor laminations for home appliance

Laminations For Home Appliance

AC motor laminated stacks are widely used in household appliances, including ceiling fans, air conditioners, washing machines, refrigerators, compressors, mixer grinders, dehumidifiers, etc.

industrial motor laminations

Industrial Motor Laminations

Servo motor cores are widely used in industrial machinery fields such as robots, CNC machine tools, HAVC, and elevator traction machines; industrial fans use outer rotor cores.

energy electric motor laminations

Energy Motor Laminations

Our laminations are used in oil & gas areas. The generator laminations are used in renewable energy such as wind, hydro, geothermal, and biomass power generation.

UAVs motor laminations

Motor Stator Rotor For Drone

UAVs and FPV RC multicopters usually use stepper motor cores, permanent magnet synchronous motor cores, DC motors, etc. Mainly used in agriculture, industry, and other fields.

transformer laminations

Transformer Laminations

The EI laminations are a good choice for large transformer cores. Transformer core laminations typically are made of thin silicon steel due to their favorable magnetic properties.

Precision Motor Lamination Stamping

Our stamping division boasts a diverse range of high-speed and common punching machines in various models and tonnages, enabling swift customization to meet unique client requirements. We offer many motor lamination stamping ways.

Tooling Design And Manufacture

The stamping lamination tooling determines the quality of the lamination, we use advanced slow-moving wire-cutting equipment to manufacture the highest quality tool to meet your specific needs.

We specialize in progressive die design and manufacturing, catering to diverse industries such as automotive, power tools, pumps, household appliances, industrial motors, and generators.

We have compound mold design and manufacturing expertise including stators, rotors, outer rotors, armature laminations, large generators, E-shaped laminations, and more compound stamping die.

Specializing in notching die production, we excel in crafting precision tools for efficient lamination manufacturing.

Our notching dies are designed for superior accuracy, offering reliable solutions for the production of motor and transformer components.

Our die casting molds play a pivotal role in casting. Whether for automotive parts or electronic components, our expertise in die casting die manufacturing guarantees efficient production and consistent results.

lamination stamping tooling molds

Motor Core Lamination Bonding Capabilities

As a premier electric motor core manufacturer, we specialize in lamination bonding techniques including glue dot bonding and self-adhesive bonding. This process eliminates interlaminar shorts common in traditional unitizing methods and enhances the efficient and performance construction of motor and transformer laminations.

glue bonding laminations

Glue Dot Bonding

In the process of glue dot bonding for motor laminations, adhesive dots are strategically applied to the single motor lamination surfaces. Subsequently, the iron core lamination undergoes curing in an oven and is fused to hold the laminations together securely.

Self Bonding

In self-bonding motor lamination, a full-surface coating is applied externally to the electrical steel lamination, then oven-cured to achieve fusion, ensuring a robust and integrated bond for optimal motor performance.

full face bonding lamination

Rotor And Stator Core
Lamination Stacking Assembly


In motor lamination, interlocking points are created during progressive stamping, enabling laminations to self-stack into cores.


We offer MIG, TIG, and laser welding to stack stator laminations. This solution can stack motor cores from loose laminations.

Shaft Inserting

The shaft insertion involves precision placement of the shaft into the rotor assembly. Suitable for small to medium-sized motors.


Motor lamination riveting involves the use of rivets to fasten laminations to create robust motor iron cores.


Stator laminations cleating stacking including straight or skew cleats. This stacking method ensures efficient assembly.


Motor laminations are stacked together using blots, particularly for stators with larger outer diameters.

electrical steel laminations prototyping

Electrical Steel Lamination Prototyping

The motor lamination prototyping service employs cutting-edge laser cutting and wire-cutting technologies to precision-cut laminations. Our rapid prototyping ensures a quick turnaround, with delivery times as fast as 15 days.

Motor Lamination Core Insulation Process

Motor Lamination Core Insulation includes injection-molded insulation and stator electrostatic epoxy coating, ensuring effective insulation and enhancing the performance of the core.

Plastic Overmolding

Plastic overmolding is an injection molding technique, we use different materials (often TPE, PA, and PPS) to plastic overmold, creating motor lamination stacks insulation through the application of heat, pressure, and liquid silicone.

stator injection molding insulation
electrostatic epoxy coating insulations

Electrostatic Epoxy Coating Insulation

Our automatic electrostatic epoxy coating lines facilitate efficient insulation of motor iron laminated cores. Our capabilities extend to coating diverse powder classes for lamination stacks up to 50mm outside diameter, with or without shafts.

Rotor Die Casting Process

Lamnow stands at the forefront of rotor die casting, excelling in both aluminum and copper die-cast. 

Aluminum Die Casting Rotor

Our aluminum rotor die-casting process ensures lightweight components with excellent strength and cost-effectiveness, ideal for various industries.

Copper Die Casting Rotor

Our copper rotor die casting delivers superior conductivity and durability, making it a preferred choice for specific applications.

With precision and expertise, we tailor rotor die-casting solutions to meet the unique requirements of each project, providing high-quality, reliable components for diverse applications in the automotive, electronics, and industrial sectors.

rotor cores aluminum die cast
rotor cores copper die cast

Motor Stator Coil Winding

stator coil winding

Stator Coil Winding is a crucial step in electric motor manufacturing. Our advanced automatic winding or hand-winding processes ensure precision and reliability in coil placement.

With automated machinery and skilled technicians, we achieve consistent and efficient winding for various motor types.

Whether it’s for small-scale or large-scale production, our expertise in stator coil winding guarantees optimal performance, meeting the stringent standards of the industry.

Materials Used In Motor Core Lamination

The efficiency and performance of electric motors are intricately linked to the motor lamination materials chosen. We use various materials to stamp electric motor cores, mainly including:

Silicon steel, often referred to as electrical steel or lamination steel, boasts outstanding electrical conductivity, rendering it a prime choice for various electrical components. Widely used in generators, motors, pulse transformers, and small relays.

Nickel alloys play a pivotal role in motor components owing to their high permeability at low to moderate inductions and low core losses. Beyond, nickel alloys exhibit resistance to corrosion and wear, ensuring durability and reliability in electric motors.

Cobalt alloys have some advantages that resistance to corrosion, heat, and wear. Cobalt’s magnetic properties make it particularly valuable in applications where high performance is paramount.

Thin-gauge electrical steel emerges as an optimal choice for applications demanding superior performance and energy efficiency. Both grain-oriented and non-grain-oriented forms of thin electrical steel possess unique magnetic properties.

Amorphous metal alloy materials have high strength, low corrosion, low core losses, and excellent magnetic characteristics, making them valuable in various applications. We offer 25 microns thinness amorphous metals to manufacture motor laminations.

electrical steel

Quality Control For Silicon Steel Lamination

Ensuring superior quality in electric motor laminations is a top priority for our company. Our commitment to stringent quality control measures and obtained ISO 9001:2008 certification.

2.5D measurement device
x-ray inspections
digital height gauges
salt spray test machines

Precision metal stamping is a versatile manufacturing process crucial for producing highly accurate components with tight tolerances.

Applied across diverse industries such as new energy vehicles, power tools, aerospace, military, defense, medical, and power generation, our precision-stamped parts exhibit exceptional quality.

While commonly working with metals like tantalum, nickel, steel, aluminum, stainless steel, brass, and copper, we extend our capabilities to a variety of materials, including fiberboard, phenolics, PVC, and magnesium.

Our commitment to precision ensures the delivery of top-notch stamped parts, meeting the exacting standards of various applications and industries.

Precision Metal Stamping Capabilities

precision metal stamping capabilitie

Your Leading Motor Lamination Manufacturer

Your leading motor lamination manufacturer is at the forefront of innovation, producing high-quality laminations for electric motors. Our commitment to precision engineering and advanced technology ensures optimal motor performance. With a focus on reliability and efficiency, we cater to diverse industries, providing custom solutions that drive progress and power the future.

Build Your Electrical steel Lamination knowledge

You’ll find the electric motor lamination stacks resources with confidence on the Lamnow Blog.

Lamination Stacks FAQS

A motor laminations stack refers to the arrangement of thin metal sheets, known as laminations, that are stacked or bonded together to form the core of an electric motor. Due to less eddy current losses the core plays a crucial role in the motor’s efficiency and performance.

Skewed laminations play a crucial role in motor design by reducing cogging and torque ripple. By offsetting the laminations, these motors experience smoother operation and more consistent torque delivery. This design innovation enhances motor performance, particularly in applications where precision and smooth motion are essential.

Yes, motor laminations can be customized based on the unique requirements of a particular application. Customization may involve selecting specific materials, thicknesses, and stacking patterns to optimize motor performance.

The standard lead time for our motor lamination orders depends on the specifications and quantities required. Please contact our sales team for specific details regarding your order.

Yes, we provide international shipping options. Delivery times for international orders may vary based on shipping method and customs processing. Contact our sales team for specific details regarding your location.

Reliable, High-Quality Motor Lamination Stacks from Lamnow

Lamination stacks are vital components in electric motors, generators, and transformers. With years of expertise in diverse applications, we’re ready to tailor lamination solutions to your needs. Contact us today or request a quote.