12 Spindle Motor Manufacturers in 2024
This section provides an overview for spindle motors as well as their applications and principles. Also, please take a look at the list of 12 spindle motor manufacturers and their company rankings. Here are the top-ranked spindle motor companies as of November, 2024: 1.NAKANISHI INC., 2.Pushcorp Inc., 3.Aerotech, Inc..
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Categories Related to Spindle Motors
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What Is a Spindle Motor?
A spindle motor is a motor in which the motor part of the power source and the rotating part are integrated.
Since there is only one rotating shaft, the equipment configuration is simplified. A spindle is the rotating shaft of a rotating machine.
It is also called a spindle unit, a term used for machine tools such as lathes. Therefore, a spindle motor refers to a motor integrated with a spindle.
A typical rotation control device consisting of a motor, gears, and belts tends to be complicated to control due to the large number of parts. Spindle motors, however, make it easy to add multiple rotating shafts in parallel in a space-saving manner.
Uses of Spindle Motors
Spindle motors are widely used inside processing machines. The following are examples of spindle motor applications.
- Drilling machines and end mills
- HDD rotation for computers
- Cutting tools such as circular saws
- Drilling and grinding tools
- Arms for cooperative robots and articulated robots
A wide range of product lineup exists, from high-torque types to products capable of high-speed rotation. It is possible to select the optimum product from a variety of spindle motors according to the application.
In recent years, spindle motors have also been used in articulated robots, where the axis of rotation of the robot arm is matched with the axis of the spindle motor. Taking advantage of their space-saving characteristics, spindle motors can also be used to drive HDD rotation.
Principle of Spindle Motors
The structure of spindle motors is often very similar to the widely used servo motors. The spindle is installed coaxially with the axis of rotation. There are two types of motors used: synchronous motors and induction motors.
1. Synchronous Motor
Synchronous motors consist of a rotor made of permanent magnets fixed to a rotating shaft and multiple circular stator units installed around the periphery of the rotor. The stator consists of electric wires wound around an iron core, and when an alternating current flows through it, it acts as an electromagnet and temporarily restrains itself.
Because the phase of the AC current changes from moment to moment, the polarity of the electromagnets also changes with time. Since the polarity of the rotor's permanent magnet is fixed, it can rotate the rotor by alternating attraction and repulsion with the stator.
2. Induction Motor
Induction motors are motors that use a conductor rotor instead of the permanent magnet rotor of synchronous motors. A cage-shaped metal part is often used for the conductor rotor.
The principle is that a rotating magnetic field generated by the stator generates an electric current in the rotor conductor, causing electromagnetic induction action that rotates the shaft. Unlike synchronous motors, this type of motor is not suitable for fine positioning because of an error called "slippage" in the rotation phase. However, they are widely used for high output products because of their low cost and small number of parts.
Other Information on Spindle Motors
Differences Between Spindle Motors and Servo Motors
Spindle refers to the rotary shaft of industrial rotating equipment used for cutting and grinding. Therefore, the main purpose of spindle motors is cutting and grinding. Motors with ultra-high speed rotation and high torque are often used.
In contrast, servo motors are widely used in precision machinery that requires strict positioning accuracy. Assembly robots and automatic packaging equipment are examples. Driving devices such as encoders are used in motors to detect the rotational position and speed of the rotor.
This detection information is communicated with a PLC or driver to implement feedback control, enabling high-speed rotation to be controlled with high precision. Both spindle motors and servo motors of all types can be applied.
However, induction motors are often used for spindle motors and large-capacity servo motors, while synchronous motors are often used for small-capacity servo motors.
List of 12 Spindle Motor Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- Germany
- Japan
・Spindle accuracy: within 1 μm
・Outer diameter: φ19.05–φ50
・Can be mounted on CNC lathes, machining centers, robots, and special purpose machines
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NAKANISHI INC.
Spindle Motors
Company Overview
NAKANISHI, founded in 1930, is a manufacturer and supplier of surgical, dental, and general industrial products applying high-speed rotation technology located in Tochigi, Japan. The products include micro grinders & controllers that are electrically or air-driven, sub-spindle machine tools, high-speed machining spindles, special-purpose machines & robots, and milling machines. The company offers solutions to drilling, milling by endmills, deburring by carbide cutters, grinding by grindstones, and finishing applications in the automotive, medical, mold, micromechanics, and electronics industries.
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Pushcorp Inc.
Robotic Servo Spindle Motors
Manufacturer Overview
PushCorp Inc., established in 1993 and based in Garland, Texas, USA, is a manufacturer and supplier of robotic material removal end-of-arm tooling. The company's product range includes AFD310, AFD620, AFD1240, SBS82 Series, and STC1503-BT30. These products are primarily used for grinding, sanding, polishing, routing & cutting, and deburring. They serve industries such as automation machinery manufacturing. In addition to its product offerings, the company provides proof of concept testing, specialized robotic labs, and local support through a sales office in Wixom, Michigan.
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Aerotech, Inc.
Direct-drive spindle
Manufacturer Overview
AEROTECH creates solutions for motion and positioning of devices. Customers are from industries as diverse as data storage, medical devices, and aerospace. AEROTECH develops controllers, drives, motors, and other parts for motion and positioning devices and offers custom-engineered motion systems. AEROTECH’s serves both manufacturers of individual parts as well as equipment operators offering full range of support rom design to manufacturing to deployment.
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Citizen Chiba Precision CO.,LTD.
Miniaturized AC Servomotor
Manufacturer Overview
Citizen Chiba Precision was established in Chiba, Japan in 1979. Citizen is a leader of miniaturized precision motors and customized products which custom-made to meet specific customer requirements for among others, semiconductor manufacturing equipment, medical equipment, and laser application products. Examples of Citizen’s products include optical scanners, linear actuators, servomotors, gear heads, and control drivers.
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FANUC
Servo Motor
Manufacturer Overview
FANUC Corporation, established in 1972 and headquartered in Yamanashi Prefecture, Japan, is a manufacturer of factory automation, robomachine, IoT, and robotics. The company offers an extensive and diversified product portfolio including, servomotor, robodrill small cutting machine, roboshot electric injection molding machine, robocut wire electrical discharge machine, and lasers. These cutting-edge products cater to a wide range of industries, spanning from automotive, health care, and aerospace to electronics. The aim of the company is to provide efficient and low-cost products to customers.
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URAWA Corporation
Brushless spindle motor unit
Manufacturer Overview
URAWA Corporation, established in September 1955 and based in Kuki-shi, Saitama-ken, Japan, is a manufacturer and supplier of micro grinders. The company's product range includes more than 50 different models of micro grinders developed for dental, industrial, and various other uses. These grinders have become essential tools in sectors that require precision grinding. Serving industries such as dental and industrial sectors worldwide, the company emphasizes the importance of creativity, quality, and great design in its product offerings. The company's services include continuous research, development of new products, and technologies.
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SUGINO MACHINE LIMITED
High-speed Spindle Motor
Manufacturer Overview
SUGINO MACHINE LIMITED was established in 1936 and is a manufacturer and supplier of high pressure jet cleaning equipment, water cutting equipment, and industrial devices based in Namerikawa, Toyama, Japan. The company manufactures various products such as water beam machine, ultrasonic cutting machine, gun drill machine, dimple forming tool, and roller burnishing tool. The products are used in various applications such as aerospace, robotic, nuclear power plants, machining manufacture, and biosciences field. The company has obtained the ISO 9001 certification standard in 1998.
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MinebeaMitsumi Inc.
HDD Spindle motors
Manufacturer Overview
MinebeaMitsumi Inc. was incorporated in 1951in Japan and manufactures and supplies machined components, and electronic devices and components globally. It operates through four segments: machined components, electronic devices and components, MITSUMI Business, and the U-Shin business segment. MinebeaMitsumi specializes in bearing products including spherical, roller, rod end, and ball bearings for aerospace. MinebeaMitsumi also produces products including precision mechanical assemblies, fasteners, other special components including clutches and brakes, motors, blowers, sensors and lighting devices. Additionally, MinebeaMitsumi offers its products for use in PCs and peripheral equipment, information and telecommunications equipment, household electrical appliances, automobiles, and aerospace.
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BMR
Spindle
Manufacturer Overview
BMR GmbH, based in Schwabach, Bavaria, Germany, was founded in 1978 and is a manufacturer of static frequency converters for asynchronous (AC) and synchronous (BLDC) spindles. Its converters are in the power range from 100VA to 3.5 KVA and speed up to 150,000 rpm. Their products are used for grinding, milling, engraving, and dressing. They also produce custom-made industrial electronics for the control of lighting film and lamps for the automotive and advertising industry.
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Company Overview
BOBET, a company founded in 2014 and headquartered in Shenzhen, China, is a manufacturer and supplier of DC motors and DC geared motors. The company's product portfolio includes DC planetary gear motors, stepper servo motors, and gearboxes. These products are used in various sectors, including industrial automation, renewable energy generation, and the aerospace and defense industry. The company offers services including technical support, customization, and guidance on product maintenance and repair. The company exports its products to various countries, including the United States, India, and Germany.
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MicroLab Precision Technology Co., Ltd.
Built-in Motor Spindle with housing diameter 62
Company Overview
MicroLab Precision Technology Co., Ltd., established in 1999 and based in Taichung City, Taiwan, is a manufacturer and supplier of machining spindles. The company's product portfolio includes rotary spindle heads, tapping center spindles, and milling and turning direct drive spindles. These products find applications in various industries, including general manufacturing, automotive, and the defense industry. The company provides services including technical support, customization according to the unique requirements of individual customers, and training. The company sells its products globally to various countries including the United States, Sweden, and China.
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FANUC Europe Corporation S.A.
Built-in spindle motor
Company Overview
FANUC Corporation was established in 1956 and is headquartered in Japan, manufacturing of industrial robots, CNC systems, and related automation technologies. The company produces products that include industrial robots, CRX Cobots, Lasers, IoT Solutions, and various CNC systems for machine tools. These systems and technologies find applications in a broad range of industries, including automotive manufacturing, aerospace and defense, electronics production, and metalworking. They also help with automated repetitive tasks, performing complex assembly operations, and handling hazardous materials for medical device manufacturing, consumer goods products, and many more industrial applications.
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Spindle Motor Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
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| 1 | NAKANISHI INC. |
36.3%
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| 2 | Aerotech, Inc. |
9.7%
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| 3 | Pushcorp Inc. |
9.6%
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| 4 | BMR |
9.2%
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| 5 | Citizen Chiba Precision CO.,LTD. |
6.0%
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| 6 | URAWA Corporation |
5.9%
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| 7 | BOBET |
5.7%
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| 8 | MicroLab Precision Technology Co., Ltd. |
5.4%
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| 9 | SUGINO MACHINE LIMITED |
4.4%
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| 10 | MinebeaMitsumi Inc. |
3.9%
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Derivation Method
The ranking is calculated based on the click share within the spindle motor page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- MinebeaMitsumi Inc.: 85,954
- NAKANISHI INC.: 2,049
- BMR: 20
Newly Established Company
- FANUC: 1972 (52 years ago)
- Aerotech, Inc.: 1970 (54 years ago)
- MinebeaMitsumi Inc.: 1951 (73 years ago)
Company with a History
- MinebeaMitsumi Inc.: 1951 (73 years ago)
- Aerotech, Inc.: 1970 (54 years ago)
- FANUC: 1972 (52 years ago)
Spindle Motor Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Spindle Motor Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
Japan
|
6 | 60.0% |
United States of America
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2 | 20.0% |
Germany
|
2 | 20.0% |
List of Spindle Motor Products
57 products are listed.
NAKANISHI INC.
Number of diverse products lineup No.1 Electric motor spindle E3000 series Motor spindle
60+ people viewing
Last viewed: 5 hours ago
Number of product lineup No.1 ･ A lineup of outer diameter φ50, φ48, φ40, φ33, φ30, φ26.8, φ26, φ25, φ22, φ22 ･ Maximum output 350W ･ Maximum rotat...
URAWA Corporation
Spindle motor self -cooled type
70+ people viewing
Last viewed: 5 hours ago
It is designed to be installed on a small automatic machine and a desktop type automatic machine. ･ Replacement of tools is one touch ･ There is no...
NAKANISHI INC.
Electric motor spindle HES Series Motor Spindle to Machining Center with high -speed core shaft that enables ability awakening fine processing
50+ people viewing
Last viewed: 5 hours ago
Achieves high -speed focus of machining center and flying boards ･ Compatible with various tables: BT, HSK A63, ST, it ･ Maximum output: 350W ･ Max...
URAWA Corporation
Spindle motor air supply type
80+ people viewing
Last viewed: 5 hours ago
It is designed to be installed on a small automatic machine and a desktop type automatic machine. ･ Replacement of tools is one touch ･ There is no...
NAKANISHI INC.
Maximum size that enables the maximum size Maximum degree of freedom electric motor spindle ISPEED3 Series Motor Spindle
60+ people viewing
Last viewed: 5 hours ago
Class smaller size ･ Lineup of outer diameter φ19.05, φ20, φ22 ･ Maximum output 150W ･ Maximum rotation speed: 80,000min-1 ･ Equipped with lathes, ...
NAKANISHI INC.
The first step to automation, hand -cutting and hand -removing the automatic electric motor spindle E2000 Series Spindle
50+ people viewing
Last viewed: 5 hours ago
Ideal for cutting and fine burr removal ･ Outer diameter φ22.8 ･ Maximum output 200W ･ Maximum rotation speed: 50,000min-1 ･ Equipped with lathes, ...
NAKANISHI INC.
Demonstrate the tenacious torque by the vane motor AIR-SPEED Series Motor Spindle
130+ people viewing
Last viewed: 5 hours ago
Demonstrate the tenacious torque by the vane motor ･ Outer diameter: φ19.05/φ20/φ22.8/φ23/φ25/φ30 ･ Maximum output: 130W ･ Maximum number of revolu...
NAKANISHI INC.
Electric motor spindle E4000 Series Motor Spindle boasting the strongest class
60+ people viewing
Last viewed: 5 hours ago
Φ40mm class strongest spindle ･ Outer diameter φ40 ･ Maximum output 1200W ･ Maximum torque 1.0N · m ･ Maximum rotation speed: 40,000min-1 ･ Spindle...
