Motor Stator Lamination Welding

Lamnow specializes in motor stator lamination welding. Our advanced welding process ensures precise and durable connections in the lamination stacking, resulting in motors that perform optimally and reliably. With our commitment to quality and innovation, we strive to meet the diverse needs of our customers in the motor industry.

welding laminations

lamination welding services

Precision And Innovation

Our lamination welding services at Lamnow are designed to meet the unique needs of the motor industry. We offer advanced welding techniques including laser welding, TIG welding, MIG welding, and MAG welding.

Custom Welding Stator Core Lamination

Our advanced welding techniques enhance structural integrity and maximize motor performance. Our services find application in various areas, including electric vehicle powertrains, industrial equipment, large wind/hydraulic generators, and renewable energy systems. Whether you need custom welding for high-performance electric motors or sustainable power solutions, we’re here to deliver excellence in motor lamination welding.

escalator motor stator laminations
duct fan motor stator laminations
electrical steel laminations of rotary notching
stator laminations rotary

Capabilities Of Motor Core Lamination Welding

At Lamnow, once laminations have been stamped and can be handled, they are stacked into custom fixtures that are precisely compressed. We can perform 10 welds simultaneously on large stator stacks, ensuring efficiency and precision. Our advanced lamination stacking processes allow us to process up to 10,000 stacks per day, meeting the high-volume needs of our customers without compromising on quality or performance.

stator lamination welding process

Laser welding of motor laminations is an automated welding process using a laser beam to fuse metals. Unlike traditional welding, a laser provides a concentrated heat source for narrow welds. It’s versatile, suitable for stainless steel, carbon steel, and aluminum, and often used for smaller cores due to its precision.

TIG welding(Tungsten Inert Gas Welding) is a method used for welding motor stator stacks. It involves using a non-consumable tungsten electrode and Ar shielding gas to create an arc between the electrode and the base material. This method yields high-quality welds with minimal slag inclusion, enhancing weld joint integrity during stator stacking.

MIG welding, known as Metal Inert Gas welding, uses an arc generated between a continuously fed welding wire and the workpiece for heat. The process is protected by shielding gas sprayed from the welding torch nozzle. Common gases used include argon, helium, carbon dioxide, and their mixtures. MIG welding is often favored for joining high-voltage stator cores due to its efficiency and effectiveness in producing reliable welds.

MAG welding, or Metal Active Gas welding, involves adding a small quantity of oxidizing gas like oxygen or carbon dioxide to argon. This mixed gas provides better penetration, making it ideal for welding ferrous metals like carbon steel, alloy steel, and stainless steel, commonly used in the accessories of high-voltage motor stators.

Benefits Of Electric Motor Lamination Stacks Welding

Improved Electrical Performance

Welding eliminates the air gap between laminations that can occur with traditional riveting or bonding methods. This results in optimal electrical performance and efficiency of the motor.

Reduced Eddy Current Losses

The welding process can be optimized to minimize the formation of eddy currents, which can lead to energy losses in the motor. This is especially important in high-efficiency motors.

Better Mechanical Strength

Welding creates a strong bond between the laminations, which increases the overall mechanical strength of the core. This is especially important in motors that experience high mechanical stresses during operation.

Improved Thermal Performance

Welding can be used to create a more uniform bond between laminations, which can improve the motor's thermal performance.

Reduced Vibrations and Noise

A well-welded motor core can reduce vibrations and hum noise during operation, leading to a quieter and more reliable motor.

Simpler Assembly

Welding can simplify the assembly process by eliminating the need for additional fasteners or adhesives. This can reduce assembly time and cost.

Motor Lamination Welding Related Services

Motor Stamping

Motor lamination stamping includes progressive stamping, compound stamping, and rotary notching employs specialized dies to cut and shape silicon steel(electrical steel).


Laser cutting and wire-cutting electrical steel lamination prototype design and manufacture to meet your electric motor stator rotor stack needs.


We offer injection molding(plastic overmolding) and electrostatic epoxy powder coating processes to achieve an insulating motor stator and rotor lamination.

Stator Iron Core Welded China Manufacturer

We possess vast experience and proficiency in crafting and designing stator iron cores and understand the welding process. The multiple automation welding machines in our factory. We adhere to stringent quality checks to ensure top-notch reliability. Leveraging efficient manufacturing, we ensure cost-effective solutions without compromising quality. We aim to deliver premium-quality products at competitive prices.

Build your Motor Core Welding knowledge

You’ll find the electric motor stator core welding and stacking resources with confidence on the Lamnow blog.

Laminations Welding FAQS

Stator laminations are typically made of silicon steel or other magnetic materials. These materials are chosen for their magnetic properties, as they help reduce energy losses in the motor.

The traditional lamination bonding process for electric motor rotor and stator cores typically involves assembling the individual laminations using riveting, bonding agents, or other mechanical fastening methods.

In contrast, welding joins the laminations together using heat and pressure, creating a stronger, more durable bond that improves electrical and mechanical performance while reducing energy losses.

Quality control measures such as visual inspection, non-destructive testing, and destructive testing are used to ensure the quality of stator lamination welding. These measures help identify any defects or weaknesses in the weld and ensure that the stator core meets the required standards.

Stator lamination welding is commonly used in the manufacturing of electric motors for various applications, including automotive, industrial, and consumer electronics.

Learn Your Stator Lamination Welding Solutions!

Looking to optimize your motor’s efficiency? Our stator lamination welding solutions are designed to elevate performance and reliability. Contact us now to learn more about our stator lamination welding capabilities.