CITIZEN MICRO/CITIZEN CHIBA PRECISION/CITIZEN ELECTRONICS

Applications for;
Surgical power tools
Dental and orthopedic equipment
Endoscopes and inspection devices
Medical devices requiring autoclave sterilization

Target for;
Medical device manufacturers designing and producing rotary drive units
Medical device design and development engineers requiring sterilization resistance
Manufacturers of surgical instruments and equipment facing challenges in achieving both repeated sterilization and long service life

Autoclave sterilization processes using high-temperature and high-pressure steam
Reusable medical devices subjected to repeated sterilization and use
Handpieces and drive units designed for regular in-hospital cleaning and sterilization
Precision drive components for medical applications requiring long service life and stable operation

1. Autoclave Sterilization Compatibility
The motor is designed for repeated use in high-temperature, high-pressure steam autoclave environments.
It meets the sterilization requirements typically required for medical device applications.

2. Long Service Life and High Reliability with a Brushless Design
The brushless construction reduces wear components, enabling long service life and improved reliability.
Stable operation is maintained even under demanding conditions involving repeated sterilization cycles.

3. Compact, High-Output Design for Medical Devices
Using neodymium magnets and a slotless structure, the motor delivers high output and smooth rotation in a compact form factor.
This supports both performance enhancement and miniaturization of medical devices.

4. Support Based on Experience in Medical Device Applications
Drawing on experience with drive motor evaluation and application in the medical and clinical fields, customization can be considered based on specific requirements.
The motor can support the development of next-generation medical devices.

Applications for;
Medical and healthcare equipment
Industrial robots and automation systems
Precision measurement and analytical instruments
Optical and semiconductor-related equipment
General applications for compact actuators

Target for;
Equipment manufacturers and R&D departments requiring high responsiveness and high-precision control
Designers of precision equipment requiring micro torque and smooth rotation
Robot and drive system developers prioritizing lightweight design and low inertia

Precision drive units requiring accurate positioning
Servo applications with frequent acceleration and deceleration
Measurement and inspection equipment requiring low vibration and low noise
Embedded units where compact size and lightweight design are essential
Fine torque control systems combined with gearheads

1. High Responsiveness (Servo Performance) Enabled by Coreless Structure
The ironless coreless structure results in extremely low rotor inertia, allowing rapid response to control commands.
This enables highly precise positioning and speed control.

2. Smooth Rotation with Minimal Torque Ripple
The absence of an iron core minimizes cogging, providing stable and smooth rotation from low to high speed ranges.
Ideal for precision applications where vibration and noise must be kept to a minimum.

3. Compact, Lightweight, and High Output Performance
By combining neodymium magnets with mechanically reinforced coils, the motor delivers high output despite its compact size.
Contributes to overall system miniaturization and weight reduction.

4. High Expandability
Compatible with gearheads, encoders, and tachogenerators, enabling optimal drive system configurations tailored to application requirements.
Flexible support for a wide range of equipment designs.

Applications:
Optical equipment
Medical devices
Aerospace-related equipment
Measuring instruments, surveying instruments
Industrial equipment
Semiconductor manufacturing equipment
Various robots
High-end toys

Used in fields where energy efficiency, control, and quiet operation are required.

CITIZEN MICRO's DC Coreless Motor is a high-quality micromotor that achieves compact size, high torque, and high efficiency through precision manufacturing technology and proprietary winding techniques.With no iron core in the rotor, it is lightweight and has a small moment of inertia, providing excellent responsiveness and rotation speed.The cogging-free design ensures quiet operation, low noise, and smooth motion. In addition, we accommodate various custom requests, such as the selection of precious metal or graphite brushes and the integration of ball bearings.Of course, it achieves maximum performance through the combination with our Magnetic/Optical Rotary Encoders and Planetary or Spur Gearheads.Our coreless motors are utilized in a wide range of applications, including medical devices, robotics, industrial equipment, optical instruments, and home/security systems.

Applications:
Optical equipment
Medical devices
Aerospace-related equipment
Measuring instruments, surveying instruments
Industrial equipment
Semiconductor manufacturing equipment
Various robots
High-end toys

As designed in one unit with a motor, these magnetic rotary encoders are very small, yet offer such features as 3 channels, high resolution and line driver outputs. (MR-13, MR-16)
Magnetic rotary encoder which can be wide variety of combination with coreless motors is possible.
A reflective encoder carrying light emitting and receiving elements and code wheel.
Optical type rotary encoder can be used in a magnetic environment.

CITIZEN MICRO's encoders are sensors that convert rotational displacement into electrical signals, enabling high-precision detection of position and rotational speed.
The Magnetic Encoder achieve both ultra-compact design and high resolution.The Optical Encoder can operate stably even in magnetic environments.Also we support custom designs and can route lead wires in the axial direction.By combining with our Coreless Motors, they deliver maximum performance, providing best solutions for a wide range of applications, including medical devices, robotics, industrial equipment, and optical devices.

Applications for;
Laser processing systems
Medical, analytical, and inspection equipment
Semiconductor and electronic component manufacturing equipment
Optical experiments and research applications
LiDAR

Target for;
Equipment manufacturers requiring high-speed and high-precision laser scanning
Engineers designing and developing optical systems and laser systems
Research institutions and advanced technology fields prioritizing stable position control and thermal characteristics

Laser processing and marking applications requiring high-speed, high-precision laser beam scanning
Measurement and inspection equipment requiring fine optical control
Real-time optical control applications requiring high responsiveness

1. Low-Inertia, High-Torque Design
The low-inertia structure enables fast and accurate mirror actuation.
Excellent reliability allows both high-speed scanning and high tracking performance.

2. High Linearity and High Positioning Accuracy
Equipped with a high-precision optical analog sensor, providing high repeatability in response to command signals.
Suitable for fine machining and precision control applications.

3. Excellent Thermal Characteristics and Environmental Stability
Low temperature drift ensures stable operation over long periods.
Maintains high reliability even in equipment exposed to environmental fluctuations.

4. Wide-Area and High-Speed Laser Scanning
It enables high-speed, high-precision scanning over a wide angular range.
Flexibly adaptable to a wide variety of laser and optical systems.

Applications:
Optical equipment
Medical devices
Aerospace-related equipment
Measuring instruments, surveying instruments
Industrial equipment
Semiconductor manufacturing equipment
Various robots
High-end toys

Planetary type: A gearbox designed to achieve high torque.
Spur type: A gearbox that enables a slim design and low-noise operation.

CITIZEN MICRO's Gearheads, manufactured with ultra-precision processing technology, feature stable high torque transmission and a quiet design that allows for flexible installation.We offer two types of Gearheads, Planetary and Spur, which can be selected according to the application.The quiet and compact design ensures high performance in environments where silence is required or in limited spaces.Additionally, OEM designs are available.We also offer models that are more capable of long life and continuous operation.Our Gearheads are used in a variety of fields, including optical devices, medical equipment, industrial machinery, robotics, housing/security equipment and semiconductor manufacturing equipment.

Applications for;
Medical and healthcare equipment
UAV / drones
Aerospace industry
Industrial robots and precision equipment
Research and analytical instruments

Target for;
Equipment manufacturers and research institutes requiring high-speed rotation and high efficiency
Design and development engineers facing challenges in miniaturization, weight reduction, and energy saving
Users experiencing heat generation or lifetime issues during continuous operation

Spindles and drive units requiring high-speed rotation
Enclosed equipment with strict thermal constraints
Analytical and inspection instruments designed for long-term continuous operation
Compact and lightweight modules / units
Next-generation equipment where low power consumption and high efficiency are critical

1. Significant Reduction of Iron Loss with Amorphous Core
An Fe-based amorphous alloy is used as a laminated motor core.
Its non-crystalline structure significantly reduces magnetic hysteresis loss, greatly suppressing iron loss during high-speed rotation.
Compared with conventional electrical steel cores, heat generation at high-speed operation is substantially reduced.

2. High-Speed Rotation with High Torque
Reduced heat generation expands the continuous operation range of the brushless motor.
Even at ultra-high speeds of 75,000 rpm, high torque is maintained.

3. High Efficiency and Energy-Saving Design
Reduced iron loss and heat generation directly improve motor efficiency.
High output performance with lower power consumption makes this motor ideal for energy-saving and sustainability-conscious equipment.

4. Proprietary Manufacturing Technology for Difficult-to-Machine Materials
The “thin, hard, and brittle” amorphous alloy is successfully commercialized as a motor core using Citizen Electronics’ proprietary press forming and lamination technologies.
Stable mass production of high-performance materials is another key advantage.

Applications for;
Semiconductor manufacturing equipment
Optical equipment and exposure systems
Inspection and measurement equipment
Laboratory and research instruments
Cleanroom-compatible equipment

Target for;
Design and development engineers at semiconductor and optical equipment manufacturers
Developers of research and experimental equipment requiring high-precision positioning
FA and equipment manufacturers looking to integrate compact, lightweight linear actuators
Designers of equipment used in cleanroom environments

Applications requiring high-precision positioning with short strokes
Inspection and measurement processes where repeatability and reproducibility are critical
Precision adjustment axes in optical systems and semiconductor processes
Equipment used in clean environments requiring particle generation control

1. Compact, Lightweight, High-Precision AC Servo Linear Actuator
This linear actuator combines a hollow-shaft AC servo motor with a compact, high-resolution optical rotary encoder.
Its direct-drive, gearless design enables high resolution and highly accurate positioning.

2. Series Variations to Meet Different Application Needs
The product lineup includes cost-effective models that maintain high precision, long-life types, and cleanroom-compatible models with particle suppression.
Custom configurations are also available to meet specific application requirements.

3. Compact Design Supporting Space-Saving Equipment Layouts
By integrating the linear drive mechanism into a single unit, the actuator simplifies internal equipment layouts.
This contributes to space-saving designs while maintaining high performance.

4. High Suitability for Clean Environments and Precision Applications
The lineup includes cleanroom-compatible models, making the actuator suitable for equipment used in optical and semiconductor applications where high cleanliness and stable operation are required.