Precision motion control
Covers the positioning accuracy range from micrometer to nanometer
Introduction of the Technology

The self-developed linear motors, voice coil motors, servo drives, and motion control cards can cover from micron level to micron level. With the self-developed supporting control systems, it provides a complete set of solutions to meet the motion control requirements of various automation devices.

Representative products: linear motors, voice coil motors, servo drives, motion control cards and motion control systems.

Linear Motor

A linear motor is a motion device that converts electrical energy directly into linear motion without any intermediate conversion mechanism. It can be regarded as a rotary motor developed by radial section. Each type of linear motor has a corresponding type of rotary motor.

Compared with traditional rotary motors, linear motors have the following technical features:

It drives directly, no mechanical contact. Ball screw or timing belt transmission errors are avoided and there is no friction other than the guide rails.
It is in simple structure, small size. The structure omits the transmission mechanism to simplify the structure of the system, and reduce the weight and volume greatly.
Submicron-level accuracy: Due to the use of submicron-level semiconductor technology, the minimum size of each control channel can reach 10um, and with the precision optical system, the final print size and accuracy can reach the micron and submicron level;
Theoretically, the stroke is not limited, and the performance will not change due to its increase or decrease.
It can provide a wide speed range. From several micrometers per second to several meters per second, high-speed performance is prominent particularly.
Acceleration is great, and it can be up to 10 G.
High accuracy and repeatability are. The linear motor eliminates various positioning errors brought about by the intermediate links, so the positioning accuracy is high.
Smooth movement and long life. The linear motor can achieve the non-contact transmission, and except the guide rail the mechanical friction loss is almost zero, so the failure is less and the service life is longer
Applications: Semiconductor manufacturing equipment, high-speed machining centers, laser processing equipment, measuring instruments, etc.
Voice coil motor

Voice coil motor is a special form of linear motor (liner motor), which is named because of its structure similar to the speaker's voice coil. The voice coil motor mainly has three forms: cylindrical type, flat type and swing type, and it particularly suits the closed loop servo control of short stroke, high frequency and high precision in a narrow space.

Compared with linear motor, voice coil motors have the following technical features:

Simple structure, small size.
High frequency response.
High speed, high acceleration.
Easy control.
Zero hysteresis, zero magnetic slot effect.
High positioning accuracy, the positioning accuracy can achieve nanometer as per the different configurations.
Applications: medical care, semiconductor, aviation, automobile, optical lens, etc.
Servo driver

Servo drive is a part of servo system and is mainly used for high precision servo drive system. The servo motor is generally controlled by position, speed, and torque to achieve high-speed and high- accuracy positioning of the actuator. Servo drive is an important part of modern motion control and is widely used in automation equipment such as industrial robot and CNC machining center.

Compared with traditional motor (DC &AC) and stepper motor system, servo drive system has the following advantages:

Wide speed range. As per models, the maximum speed of servo motor can reach 3000~6000rpm.
High positioning accuracy. Having the semi-closed loop control with the encoder, the servo driver overcomes the step-out problem of stepping motor. The positioning accuracy of the servo drive system is influenced by the mechanical structure and can reach micron to ten micron level.
Sufficient drive rigidity and high-speed stability.
Smooth operation and good responsiveness. The servo drive system runs smoothly at low speed, and it does not produce the slow-speed creep of the stepper motor when running at low speeds; it is suitable for applications where high-speed response is required.
Constant torque, strong anti-overload capability. The servo drive system can maintain a rated torque output in a wide range and has a short-time overload resistance.

Through independent research and development of the related products of precision motion control, the company mastered the key technologies of precision motion control and realized batch applications of the equipment such as CTP, laser cutting, 3D printing, industrial automation etc.. It has greatly improved the performance, reliability and economy of the equipment and has the core competitive advantages of the market.

Compared with traditional motor (DC &AC) and stepper motor system, servo drive system has the following advantages:

High- accuracy industrial automation equipment
Industrial robot
3D printing
Laser cutting
High- accuracy industrial printing
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