Riveting Electric Motor Lamination

Our specialty lies in our riveting motor lamination process, which ensures precision and durability in every stack of laminations. By using riveting, we deliver motor laminations that are not only reliable but also highly efficient, meeting the highest industry standards.

lamination riveting services

lamination riveting services

Precision And Innovation

Our lamination riveting services ensure a tight and secure fit. With our expertise, you can trust that your lamination needs will be met with quality and reliability.

Custom Riveting Stator And Rotor Core Lamination

Lamnow offers custom electrical steel lamination services. Our precision process ensures a tight fit, crucial for the performance and longevity of electric motors. Whether you require custom motor rotor and stator lamination designs, specific dimensions, or intricate shapes, we can accommodate your needs. Our riveting service is widely used in various applications, including automotive, electric vehicles, industrial, and household appliance motors and energy generators.

passenger cars motor laminations
industry motor lamination for compound punching
riveting water pump motor laminations
riveting stepper motor laminations

Capabilities Of Motor Core Lamination Riveting

Riveting is a method used to permanently connect two or more metal parts. It involves inserting a cylindrical rod (the rivet) into a pre-drilled hole and deforming it to create a head larger than the hole. This head secures the parts together, making riveting a popular joining process in metalworking.

motor lamination riveting process

The core of an electric motor is usually made from a series of thin steel laminations that are stacked together. Silicon steel (also known as electrical steel or silicon iron) is commonly used because it has high electrical resistance and low core losses.

The silicon steel metal sheets are cut into the desired shapes using stamping(such as compound stamping, and rotary notching), laser cutting, or EDM wire-cutting techniques. The shapes are often complex and precise to achieve the desired magnetic properties.

The insulated laminations are then stacked together to form the motor core. The lamination stacking sequence is carefully designed and aligned using alignment pins to ensure that they are properly positioned relative to each other.

The laminations are clamped together using a hydraulic or pneumatic system to hold them in place during the riveting process.

The riveting machine is used to insert rivets through the stack of laminations and compress them to secure the laminations together. The riveting process typically involves applying pressure to the rivets to deform them and create a tight connection between the laminations.

After riveting, the completed core is inspected to ensure that the laminations are securely joined and that there are no defects or imperfections that could affect the performance of the motor.

Benefits Of Electric Motor Lamination Stacks Riveting

Enhanced Performance

Riveting ensures a precise alignment of the lamination stacks, which minimizes magnetic flux loss. This results in motors with better efficiency and performance.

Increased Durability

Riveting securely fastens the lamination stacks together, reducing the likelihood of damage during operation or transportation, thus improving the overall durability of the motor.

Cost Efficiency

The riveting process allows for the use of thinner lamination sheets, saving material costs. Additionally, the use of rivets negates the need for adhesives or other costly joining methods.

Time Efficiency

Riveting machines can complete the process rapidly, contributing to faster motor assembly and reduced production time.

Reduced Noise

The tight connection created by riveting helps minimize vibrations, which can reduce motor noise during operation.


Riveting machines can be programmed for precision, ensuring a consistent connection across multiple lamination stacks.

Hybrid Stamping Related Lamination 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.

Premier Riveting Motor Laminates Manufacturer

With years of experience in the industry, our team boasts extensive knowledge and expertise in producing high-performance motor laminates. Our state-of-the-art facilities use modern machinery for precision engineering. We focus on cost-effective solutions, ensuring our clients achieve their goals with maximum ROI.

Build your Motor Core Riveting knowledge

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

Laminations Riveting FAQS

Riveting is used for motor laminations because it creates a secure and reliable connection between the laminations. This helps to prevent the laminations from coming apart during operation.

Riveting is a mechanical joining method that uses pressure to deform a rivet, creating a permanent connection between the laminations. In contrast, other methods like welding, gluing, or stacking require the use of heat or adhesives, which can alter the material properties and compromise motor performance.

The most common types of rivets used for motor laminations are tubular rivets, which are cylindrical with a hollow center. They are inserted into pre-drilled holes and then deformed to secure the laminations together.

The time it takes to rivet motor laminations depends on the size and complexity of the motor. In general, the riveting process can be completed in a matter of minutes.

Yes, other methods like interlocking, cleating, laser welding, tig welding, mig welding, or adhesive bonding can also be used for lamination assemblies. However, each lamination stacking process has its advantages and limitations, and the choice depends on the specific requirements of the motor stator and rotor stacks design and application.

Choose Riveting Laminations from Lamnow!

Are you ready to take your electric motor performance to the next level? We specialize in producing riveted motor laminations that are engineered for precision and efficiency. Contact us now to learn more and start optimizing your motor’s performance.