How Stator Cleating Impacts Motor Performance?

At our motor lamination manufacturing facility in China, we’ve honed the art of motor design, and cleating plays a central role. In this blog series, we’ll dive deep into the world of stator cleating, unveiling its powerful influence on motor efficiency and energy savings.

Whether you’re an industry professional or an enthusiast curious about the mechanics behind electric motors, our insights into cleating’s impact on motor performance will shed light on this essential component.

The Fundamentals of Stator Cleating

cleating motor

At its core, stator cleating is a method to secure laminated iron sheets within the stator core of an electric motor. The laminated sheets, when cleated together, form the stator core, a crucial component in the motor. But why is this seemingly simple process so significant for motor performance?

Stator cleating serves a dual purpose within electric motors. First, it provides structural support, holding the laminations together in the desired shape. Second, and more crucially, it plays an active role in enhancing motor performance. 

Clamping notches vary from 2 to 16 per stator, depending on the electric motor size. The location of the cleat notches should be in line with a lamination tooth or slot opening.

On large stators with many splints, they must be evenly distributed around the perimeter of the stator and are always two notches 18 degrees apart.

Types of Stator Cleating

The world of stator cleating is not one-size-fits-all. Different types of cleating techniques and designs cater to specific needs and applications. Understanding these variations is vital to optimizing motor performance.

V-Pin Cleating

V-Pin cleating is a common method where V-shaped pins secure the laminations. This technique offers reliable stability and applies to industrial motors.

Wire Cleating

Wire cleating involves wrapping wire around the laminations, creating a tight bundle. Choose this approach for its simplicity and effectiveness.

Keyhole Cleating

Keyhole cleating uses specially shaped slots and keys to secure laminations. This technique is preferred for its ease of assembly and disassembly.

The Impact on Motor Efficiency

So, how exactly does stator cleating influence motor efficiency and performance?

Magnetic Circuit Improvement

Stator cleating optimizes the magnetic circuit within the motor by ensuring that the laminations are in close contact. This minimizes magnetic flux leakage and enhances the overall magnetic efficiency.

Reducing Energy Losses

One of the primary functions of stator cleating is to reduce energy losses. Hysteresis and eddy current losses cause these losses, which occur when not securely cleated the laminations. Stator cleating helps counteract these losses, resulting in improved motor efficiency.

Factors Influencing Cleating Design

The design of stator cleating isn’t arbitrary; several key factors have a direct impact on motor performance and influence it.

Material Selection

Choosing the right cleating material is crucial. It should have good electrical conductivity and magnetic properties to complement the laminations.

Precision in Cleating Design

Precision is paramount in cleating design. Tight clearances and exact positioning of cleating components ensure optimal performance and minimal energy losses.

Thermal Considerations

Motor operation generates heat, and stator cleating should withstand the associated temperature variations. The choice of materials and design must account for these thermal factors.

Application Area

industrial electric motor application

Stator cleating, a critical process in electric motor design, finds applications in a variety of industries, contributing to enhanced motor efficiency and reliability. Let’s explore some key stator cleating applications:

Industrial Motors

Stator cleating is suitable for industrial motors, which power heavy machinery and equipment. Efficient cleating ensures the motor operates at optimal efficiency, reducing energy consumption and maintenance costs in industrial settings.

HVAC Systems

Heating, ventilation, and air conditioning (HVAC) systems rely on electric motors to maintain temperature control in residential and commercial buildings. Proper stator cleating is crucial for the consistent and reliable operation of these systems, which are essential for maintaining comfort and air quality.

Rail Transportation

Electric train systems rely on electric motors for propulsion and various operational functions. Stator cleating ensures these motors perform efficiently, contributing to the reliability and safety of rail transportation.

Automotive Sector

Electric motors are increasingly integrated into the automotive industry for various applications, including power steering systems, window regulators, and electric vehicle propulsion. Stator cleating enhances the performance of these motors, contributing to vehicle efficiency and sustainability.

Renewable Energy

Electric generators used in wind turbines and other renewable energy systems benefit from efficient stator cleating. By reducing energy losses, cleating helps harness and convert renewable energy effectively, contributing to sustainable power generation.

Let Motorneo Assembly and Stack Motor lamination

cleating machine

Ready to optimize your electric motor’s performance and efficiency? As a trusted motor lamination manufacturer in China, we specialize in precision stator cleating, stator core assembly, and stacking services.

Our expertise ensures your motors operate at their highest potential, delivering energy savings and reliability. Whether you’re in the automotive, industrial, or aerospace industry, our tailored solutions enhance motor efficiency across various applications. 

Don’t compromise on performance. Contact us today to explore how our cleating techniques can elevate your electric motors and drive innovation in your industry. 


In conclusion, the impact of stator cleating on motor performance cannot be overstated. This seemingly minor detail significantly influences motor efficiency, energy savings, and reliability.

By understanding the various aspects of stator cleating, from different cleating types to factors influencing design and applications in various industries, we can harness its potential to optimize electric motor performance.


What are stator laminations, and why are they stacked in electric motors?

Stator laminations are thin, typically electrical steel, sheets used in the construction of the stator core in electric motors. They are coated with an insulating material to minimize energy losses and enhance the motor’s performance.

These core laminations are stacked together to form the stator core, creating a compact and efficient magnetic circuit. The stacking process is essential to reduce eddy current losses and hysteresis, resulting in improved motor efficiency and performance.

It also contributes to the robustness and structural integrity of the motor, ensuring long-term reliability.

Why is precision crucial in stator cleating design?

Precision is crucial in stator cleating design because it directly impacts motor efficiency and performance. Cleating must ensure that the laminations are held together with tight tolerances, minimizing gaps and maintaining close contact.

Precise cleating reduces energy losses caused by hysteresis and eddy currents, which occur when laminations are not securely fastened.

Tight cleating also optimizes the magnetic circuit within the motor, enhancing its magnetic efficiency. This precision is fundamental to ensuring that the motor operates at its full potential, offering improved energy savings and reliability.

What are the advantages of using stator cleating in the stacking process?

Stator cleating enhances motor performance by reducing energy losses, improving the magnetic circuit, and ensuring the laminations remain securely fastened over the motor’s lifetime.

What are the bonding technologies of motor lamination in China?

Riveting involves fastening the laminations together using rivets or pins. This method provides a mechanical connection that ensures laminations remain aligned and stable. Riveting is particularly suitable for larger motor cores.

Welding involves laser and TIG+MIG welding, fusing the laminations using heat or pressure.

Gluing lamination is the application of adhesive or glue to bond individual laminations together to form the core of an electric motor. The glue is typically a specialized epoxy or resin.

Self-bonding property is through pressure and heat applied during the motor lamination stack assembly.

Try to contact us for high-quality motor cores in China.