​Self-Adhesive Stator Core vs Traditional Stator Core: The Core Code for Motor Upgrade, Revealed by a Senior Processing Factory

1. High Lamination Accuracy + Low Iron Loss, Motor Efficiency Approaches Industry Peak

Traditional stator cores use welding or riveting processes to fix laminations, which inevitably generate mechanical stress, leading to lamination deformation and increased gaps. This not only reduces the lamination factor but also exacerbates iron loss during motor operation, directly affecting motor efficiency. In contrast, the self-adhesive stator cores produced by our factory adopt advanced stamping + thermal curing molding technology. The laminations are closely bonded through special self-adhesive coatings without additional welding or riveting, fundamentally avoiding the defects of traditional processes.

Comparison Item	Traditional Stator Core	Self-Adhesive Stator Core
Lamination Factor	92%-94%	Above 97%
Iron Loss Reduction Range	No significant optimization	15%-20%
Process Stress	High mechanical stress	No mechanical stress

From actual production data, the lamination factor of self-adhesive stator cores can reach above 97%, far exceeding the 92%-94% of traditional cores. Meanwhile, the processing method without mechanical stress maintains the optimal magnetic permeability of silicon steel sheets, reducing iron loss by 15%-20% compared with traditional cores. This means that motors equipped with our self-adhesive stator cores consume less energy at the same power, fully adapting to scenarios with high energy efficiency requirements such as NEVs and energy-saving industrial motors.

2. Low Noise & Vibration, Adapting to the Silent Requirements of High-End Equipment

Motor operating noise and vibration are one of the core pain points of high-end equipment (such as industrial robots, precision CNC machine tools, and EV traction motors), and the root cause of this problem often lies in the stator core. The welding/riveting joints of traditional cores have gaps, which are prone to resonance during high-speed operation, and friction between laminations also exacerbates noise.

Comparison Item	Traditional Stator Core	Self-Adhesive Stator Core
Operating Noise	High noise (≥65dB)	Reduced by 8-12dB
Vibration Amplitude	Large (≥0.5mm/s)	Reduced by more than 30%
Structural Gap	Gaps exist at welding/riveting joints	Seamless bonding of laminations

Our self-adhesive stator cores are formed by integrated bonding, with laminations closely attached without gaps, fundamentally eliminating resonance and friction noise from the structure. According to actual measurements, the operating noise of high-speed servo motors equipped with self-adhesive stator cores can be reduced by 8-12dB, and the vibration amplitude by more than 30%. At present, we have customized self-adhesive stator cores for multiple industrial robot enterprises, and their silent effect has been highly recognized by customers, becoming a key advantage for their product differentiation competition.

3. Simplified Process + Short Delivery Time, Cost Reduction and Efficiency Improvement Are Visible

As a processing factory, we deeply understand the importance of production efficiency and cost control for customers. The production process of traditional stator cores is cumbersome, requiring multiple procedures, while self-adhesive stator cores achieve process integration, with significant advantages in cost reduction and efficiency improvement.

Comparison Item	Traditional Stator Core	Self-Adhesive Stator Core
Production Processes	Multiple processes including stamping, lamination, welding/riveting, grinding, etc.	Integrated stamping + bonding
Production Efficiency	Conventional efficiency (100 pieces/day)	Improved by over 40% (140+ pieces/day)
Manual Intervention	More (5-8 people/line)	Reduced by 50% (2-4 people/line)
Delivery Time	10-15 days	3-7 days

Self-adhesive stator cores realize integrated "stamping + bonding" production. Through an automated stamping production line, we integrate processes such as gluing, stamping, lamination, and curing, improving production efficiency by more than 40% and reducing manual intervention by 50%, greatly lowering human errors. More importantly, the simplified process shortens the product delivery time to 3-7 days (traditional processes require 10-15 days), helping customers respond quickly to market demands. In addition, no additional tooth pressure plates, rivets, or other accessories are needed, further reducing customers' procurement costs.

4. Stable Structure Resistant to Severe Working Conditions, Service Life Greatly Extended

High-end motors often need to operate for a long time under severe working conditions such as high temperature, high speed, and high-frequency start-stop, which puts extremely high requirements on the structural stability and weather resistance of stator cores. The welding points of traditional welded cores are prone to aging and falling off in high-temperature environments, while riveted cores may loosen, seriously affecting the service life of motors.

5. Strong Customization Capability, Covering Full-Scenario Motor Requirements

Motors in different industries have vastly different requirements for the size, power, and working conditions of stator cores. The production process of traditional cores is limited by the welding/riveting structure, making customization difficult and costly. In contrast, our self-adhesive stator core production process has higher flexibility, which can customize products of different specifications and shapes according to customer needs, achieving perfect adaptation through precise stamping control and mold design.

Conclusion

At present, our self-adhesive stator cores have been widely used in multiple fields such as new energy vehicles, industrial robots, precision machine tools, and energy-efficient home appliances, serving more than 200 enterprise customers. The qualification rate of customized products is as high as 99.8%, with a cumulative delivery of over 1 million pieces.