Stepper Motor Manufacturer& Supplier

As a professional Stepper Motor Manufacturer& Supplier, COSDA AUTOMATION stepper motor is regarded as one of the superlative in the industry. Our stepper motors come in standard NEMA flanges, making them easy to install on both existing systems and new applications.The range of the stepper motors that COSDA AUTOMATION offers is extensive, starting from NEMA 8(20mm) to NEMA42(110mm). These motors are known for their high torque, compact size, and competitive price, making them an excellent choice for various motion control applications.
Our esteemed customers are presented with several kinds of stepper motor sizes and shafts . In addition to this, we also have the capacity to adjust the stepper motor's lead wires and connectors, to ensure perfect fit and alignment, and we are competent enough to alter the stepper motor shafts with gears or pulleys. Furthermore, we can include value-added elements such as gearboxes, encoders, or even customized electronics to the stepper motor.

COSDA AUTOMATION stepper motors&drivers are manufactured with great care and high-quality materials, ensuring an economical yet reliable and high-performing product. Whether it's for industrial automation or precision machinery, our stepper motors are the perfect choice for those who require a reliable and performing motion control solution.


Types of Stepper Motor

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What Is A Stepper Motor?

A stepper motor is a type of electric motor that uses a series of electromagnetic coils to rotate a shaft in small, precise steps. Unlike traditional motors that use continuous rotation, stepper motors are able to move in precise increments, making them ideal for applications that require accurate positioning or movement control.

Every motor has the ability to convert power, with electric motors specifically transforming electricity into motion. On the other hand, stepper motors excel at converting electricity into rotation. However, their capabilities go beyond simple conversion, as they offer precise control over both the distance and speed of rotation.

Stepper motors derive their name from the fact that each electrical pulse prompts the motor to move one step. These motors are governed by a driver that delivers pulses, thus inducing rotation. The number of pulses fed into the driver corresponds directly to the number of steps the motor takes. Consequently, the motor's rotational speed aligns with the frequency of the pulses.
●  Controlling stepper motors is a straightforward process. Most drivers operate with 5-volt pulses, conveniently matching the voltage level commonly found in integrated circuits. Therefore, all you need to do is design a circuit that emits pulses.

  An outstanding characteristic of stepper motors lies in their exceptional precision when it comes to positioning. We will delve deeper into this aspect later. Nevertheless, it's important to note that stepper motors are not flawless and may exhibit minor inaccuracies. Our standard stepper motors, for instance, possess an accuracy rating of ±3 arc minutes (0.05°). However, the beauty of stepper motors lies in the fact that these errors do not accumulate from step to step. When a standard stepper motor completes one step, it rotates by 1.8° ± 0.05°. Therefore, if the same motor were to execute one million steps, it would cover a total rotation of 1,800,000° ± 0.05°. The error does not accumulate over time.

  Stepper motors boast swift response and acceleration capabilities. Their low rotor inertia enables them to reach high speeds rapidly. As a result, stepper motors are exceptionally well-suited for quick, short-distance movements.


Basic Principles of Stepper Motors


How Do Stepper Motors Work?

In a conventional brushed DC motor, voltage is applied to terminals, causing a wire coil to rotate within a fixed magnet housing known as the stator. The rotating wire coil, or rotor, acts as an electromagnet and spins at the center of the motor through the interaction of magnetic attraction and repulsion. By using brushes and a commutator, which is a rotary electrical switch, the direction of the current flowing through the wire coil can be rapidly alternated. This enables continuous unidirectional rotation of the rotor as long as the motor is supplied with sufficient voltage.

● However, a limitation of this type of motor is its continuous spinning nature, making it difficult to precisely control the stopping point. This lack of precision control renders it unsuitable for applications requiring highly accurate movements. Manually controlling the power supply to the motor cannot achieve the necessary start-stop precision for performing extremely precise movements.
On the other hand, the setup of a stepper motor is different. Instead of a wire coil rotor spinning within a fixed magnet housing, stepper motors have a stationary wire housing, called the stator, arranged around a central shaft. This stator comprises a series of toothed electromagnets. The stepper motor converts pulsating electrical currents, controlled by a stepper motor driver, into precise one-step movements of the toothed component around the central shaft.

● Each pulse delivered to the stepper motor causes the rotor to move precisely by one fixed increment of a full revolution. As the current switches between the sequentially arranged wire coils surrounding the motor, the rotary part can complete full or partial revolutions as needed, or it can come to an abrupt stop at any of the steps around its rotation.
The key advantage of a stepper motor over a normal brushed DC motor is its ability to quickly and accurately position itself to a known and repeatable position or interval, which it can then hold for as long as required. This characteristic makes stepper motors extremely valuable in applications demanding high accuracy, such as robotics and printing.
Learn Engineering has created a video that provides a demonstration of how a stepper motor operates. The video illustrates the working principles of a stepper motor in a clear and informative manner.
  • Stepping Modes

    Stepper motors offer different stepping modes to control their movement. The two common modes are full step and microstepping. In full step mode, the motor moves one step at a time, aligning the rotor with each energized coil. Microstepping, on the other hand, allows for smoother motion by energizing the coils with varying currents, creating intermediate positions between full steps.
  • Working Principle of a Stepper Motor

    Stepper motors work on the principle of electromagnetism. The motor's rotor moves in response to the magnetic field generated by the stator's electromagnets. By energizing the coils in a specific sequence, the magnetic field interacts with the permanent magnet or soft iron rotor, causing it to align with the energized electromagnet. This alignment creates a step or increment of motion. By repeating this sequence, the motor can achieve precise rotation.


Advantages of Hybrid Stepper Motors

Precise Positioning

One of the significant advantages of stepper motors is their precise positioning capability. They can move with high accuracy and repeatability, making them ideal for applications that require precise motion control. Stepper motors can achieve sub-degree angular accuracy, allowing them to position objects or perform tasks with exceptional precision.

High Torque at Low Speeds
Stepper motors deliver high torque even at low speeds, which is advantageous in many applications. This characteristic enables them to maintain holding torque when the motor is stationary, eliminating the need for additional brakes or clutches. Stepper motors can start and stop without losing steps, ensuring accurate positioning and preventing slippage.

Simplified Drive System

Stepper motors have a relatively simple drive system compared to other motor types. They do not require complex feedback loops or PID controllers, which simplifies the overall system design. The control signals sent to the stepper motor determine the precise position and speed, allowing for straightforward implementation in various applications.

Cost-Effective Solution

In terms of cost-effectiveness, stepper motors offer an advantage over other motor types. They are generally less expensive compared to servo motors or other high-precision motors. Additionally, their simplified drive system and open-loop control eliminate the need for costly feedback devices. This affordability makes stepper motors an attractive choice for budget-conscious projects without compromising performance.

High Reliability and Durability

Stepper motors are known for their robustness and reliability. They have a simple construction with fewer mechanical parts, reducing the risk of failure. With no brushes or commutators, stepper motors experience minimal wear and tear, resulting in extended lifespan and increased durability. This reliability makes them suitable for continuous operation in demanding industrial environments.

Wide Operating Range
Stepper motors have a wide operating range, allowing them to operate at various speeds and torque levels. They can handle both low-speed and high-speed applications effectively. This versatility makes stepper motors suitable for a wide range of applications, from slow and precise movements in robotics to rapid positioning in industrial automation.


Low Power Consumption

Another advantage of stepper motors is their low power consumption. Stepper motors only draw power when they are actively moving or holding a position. When stationary, they consume minimal power, resulting in energy-efficient operation. This characteristic is particularly beneficial in battery-powered applications or systems where power efficiency is crucial.

Compact Design

Stepper motors have a compact and space-saving design. Their compact size allows for easy integration into tight spaces or applications with limited room for motor placement. This advantage makes them suitable for compact devices, robotics, and equipment where size and weight are important considerations.


Smooth Operation

Stepper motors provide smooth operation, resulting in reduced vibration and noise. The discrete step movement of the rotor translates into precise and controlled motion without noticeable jerks or vibrations. This smooth operation is beneficial in applications where smooth and quiet operation is desired, such as in medical equipment, cameras, or consumer electronics.


Applications of Hybrid Stepper Motor

Stepper motors find applications in a wide range of industries due to their unique characteristics. Here are some notable examples:


Choosing the Right Stepper Motor

Selecting the appropriate stepper motor for your project requires considering several factors.

Torque Requirements

Determine the torque requirements of your application to ensure the motor can handle the load and provide sufficient torque for reliable operation.

Speed and Accuracy

Consider the desired speed and accuracy of your system. Stepper motors have different maximum speeds and step resolutions, which impact their performance in specific applications.

Power Supply and Driver Selection

Choose a suitable power supply and driver for your stepper motor. Ensure they can deliver the required current and voltage levels for reliable operation.


About Cosda Automation

Established in 2015, Cosda Automation is a manufacturer of a wide variety of automatic products. Starting with the hybrid stepper motors and hybrid stepper motor drivers, our products lines expanded to switching power supplies, short-cycle press lines and other automatic machines. Our products and solutions can be used in many different areas including CNC machines, Robotics, Assembling lines, and many other kinds of automatic areas.

We have a team of experienced engineers and technicians who specialize in designing and building hybrid stepper motors and drivers, Switching power supplies, short-cycle press lines and customized automatic machines. Over the years, we have grown to become a global leader in automation, with a focus on designing and building high-performance automated systems that meet the unique needs of our clients.

Our commitment to customer service is a major reason why we are a trusted partner for many clients. We work closely with our clients to understand their needs and design solutions that meet their unique requirements. We also provide ongoing support and maintenance to ensure that their systems continue to operate at peak performance.

Why Choose COSDA AUTOMATION Stepper Motor?

Large Scale Production Capacity

At present , the production capacity of stepper motors and drivers, switching power supplies have reached 1,000,000 units per year. The short Cycle press lines and other customized automatic machines have reached 50 units per year.


Low MOQ to Wholesale

Factory direct price, no middleman. Support all the products dropping shipping to save the supply period and reduce storage cost.



Over 8 years experience in automatic products manufacturing. More than 100 skilled workers and R&D engineers help to grow the business.


Short Delivery Time

Quick and timely deliveries are provided, reducing “time to market” for our customers.We calculate the lead time with the raw material suppliers and all the production departments before the orders are arranged.

High-quality Products

We manufacture all the products of excellent quality and we can always meet the design as customers required. Good materials and strong technology support our automatic products to work stably and easily controlled.


Free Marketing Support

Help you set up and optimize the sales website like Shopify, provide a variety of resources to show product advantages.

Stepper Motor Catalogue

Name Size Category Thumbnail Download
hybrid stepper motors & drivers, Closed Loop Stepper systems.pdf 1.65MB Catalogue download Download

Stepper Motor FAQ

  • What maintenance is required for stepper motors?

    Stepper motors generally require minimal maintenance. Regular inspection for any signs of wear, cleaning, and lubrication of necessary components are recommended. Additionally, ensuring proper power supply and protecting the motors from excessive loads or overheating can help prolong their lifespan and ensure reliable operation.
  • Do stepper motors require additional feedback devices?

    Unlike servo motors, stepper motors do not require additional feedback devices for position control. They operate in an open-loop configuration, simplifying the system and reducing costs. However, in certain applications that demand enhanced accuracy or real-time feedback, encoders or sensors can be used in conjunction with stepper motors.
  • Can stepper motors operate in harsh environments?

    Yes, stepper motors are capable of operating in harsh environments. However, it's important to choose motors specifically designed for such conditions and take appropriate measures to protect them from dust, moisture, extreme temperatures, and other environmental factors.
  • Are stepper motors suitable for high-speed applications?

    While stepper motors are known for their precise control, they are generally not the best choice for high-speed applications. However, with appropriate design considerations and the right motor specifications, they can still be used effectively in certain high-speed applications.
  • What applications are stepper motors commonly used in?

    Stepper motors find applications in various industries, including robotics, automation, medical equipment, 3D printers, CNC machines, surveillance systems, and consumer electronics.

Cosda Automation Factory FAQ

  • Are you a manufacturer?

    Yes, we are manufacturer, and we produce Stepper Motor& Stepper Motor Driver,  Switching Power supply, Short Cycle Press Line and CNC Machine Tools.
  • Are you a stepper motor manufacturer?

    Yes,We're a stepper Motor manufacturer.
  • Where is your factory?

    Changzhou city, Jiangsu Province, China near Shanghai. Welcome to visit our factory!
  • How to select models?

    Before purchasing, please contact us to confirm model No. and drawings to avoid any misunderstanding.
  • Do you offer OEM & ODM service

    Yes.We can supply OEM&ODM and make customized design for any specific application.
  • What's the delivery time?

    Except special order.For samples usually 10-14 working days .For batch order .Usually 17-25days. For Stock motors usually 1~2 days.
  • How can we know the product quality?

    We suggest you ording a sample. And you can also send us email with detailed photos and specifications for checking if you cannot get enough information in the product page.
  • How can I get in touch with you quickly?

    You can send us an email. Generally, we will reply your email within one day. For immediate help, please give us a phone call 0086-18018266160 (wechat, skype, whatsapp the same number)


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