The coreless motor, with its unique ironless rotor design and coreless coil structure, has achieved significant improvements in power density, efficiency, precision, and integration, gradually becoming a standout in modern motor technology. In recent years, under the strong impetus of national policies, the China coreless motor industry has ushered in unprecedented development opportunities, with the market size continuously expanding while also facing increasingly fierce market competition.

Ⅰ.Technical overview and advantages

The coreless motor is a kind of DC motor with the radial magnetic field structure and no iron core. Its rotor is made up of the cup of copper wire. It has the characteristics of light weight, small volume, fast response speed and wide speed range. The key parameters are as follows:

technological superiority

High dynamic performance: Suitable for precision servo control applications.

Lightweight design: No iron core, reducing rotor weight by 40%-60% compared to iron-core motors.

Wide temperature adaptability: Some models can operate stably in environments ranging from-50℃ to 130℃.

Ⅱ.Typical application scenarios

Medical devices: surgical robots, scalpels, endoscopes, etc.

New energy vehicles: electric power steering system;

Industrial automation: high-precision assembly line servo system;

Robot: finger joint;

Consumer Electronics: coreless Motors Gain Widespread Applications in Smartphones, Tablets, Wearable Devices

Ⅲ.Technical Bottlenecks:

1. Cost considerations:coreless motors are relatively expensive, which limits their application in broader fields. To enable mass production, cost reduction measures such as optimizing manufacturing processes and lowering material costs are necessary.

2. Performance and Reliability: While coreless motors excel in power density and torque output, they may develop overheating and wear issues during prolonged operation. To address these challenges, material and structural optimization is essential to enhance durability and reliability, thereby meeting the demands of industrial automation systems requiring long-term stable performance.

3. Control Technology: The control technology for coreless motors requires further refinement. Current control algorithms and methods are not yet mature or precise enough, which may compromise the motor's motion accuracy and stability.

Ⅳ. Market Expectations:

In 2026, the global coreless market size may reach $3.5 billion. As the world's largest coreless motor market, China plays a pivotal role in the global coreless motor industry, potentially becoming the world's largest production base, accounting for over 60% of the global market. In recent years, relevant national authorities have attached great importance to the development of the coreless motor industry, introducing a series of policy measures to promote its localization process.

V. Current Status of Lihui Coreless Motor

Through years of dedicated research and development, Lihui Motors has built extensive technical expertise in the coreless motor sector. The company offers brushless coreless motors in series 13,16,22,36, and 40, along with brushed versions in series 16 and 17. These motors feature low noise, lightweight design, and operate across rotational speeds from several thousand to tens of thousands of RPM, with full customization support. Additionally, Lihui provides tailored controllers and gearboxes to meet specific customer requirements. Backed by a robust R&D team, the company can independently develop motors, gearboxes, and controllers to fulfill customized needs.

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Note:‌ This article is contributed by Research and Development Department