China factory NEMA17, 23, 24, 34 Electrical Step Hybrid Stepper Servo Motor 1.8deg 2 Phase 3 Phase 4 Phase with Encoder vacuum pump booster

Product Description

Product Description

NEMA 17 Stepper Servo Motor

Electrical Specification
Series Model Rated Voltage  (V) L
Phase Current   (A) Phase
Holding Torque
Moment of Inertia   (g.cm2) Motor
( g)
HS421-05013A 4.16 51 1.3 3.2 5.5 50 77 530
HS421- 0571 1A 2.3 51 2.3 1.0 1.9 50 77 530
HS421- 0571 3A 4.94 67 1.3 3.8 8.5 56 115 670
HS421-5711A 3.22 67 2.3 1.4 3.1 70 115 670

Mechnical Drawing of Hybrid Stepper Servo Motor: 

NEMA 23 Stepper Servo Motor

Electrical Specification
Series Model Rated Voltage(V) L
Phase Current (A) Phase
Inductance  (mH)
Holding Torque
Moment of Inertia  (g.cm2) Motor
( g)
HS561-11030A 2.4 56 3.0 0.8 2.4 110 2A 3.64 150 5.6 0.65 8.4 12A 3.15 150 7.0 0.45 5.2 1200 4000 4500

Mechnical Drawing of Hybrid Stepper Servo Motor: 

Company Profile



Founded in 2006, I.CH is a professional Micro Metal Gear Motor factory over 16years. We have worked with over 50 countries’ customers arround world. We have over 20 patents in gearbox field.

We focus on the development of planetary gearbox and matched different type of motors, such as DC brush motor, Brushless DC Motor, Stepper Motor and Servo Motor. Custom Service for micro gear motor with encoder and dual shaft in special specification, The light weight with high torque and low speed is widely used in a variety of industrial, home application and hobby appliance.




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Customer Visiting

Welcom to visit our factory


Factory Ability

Packaging & Shipping

-Pack by PE foam in cartons, crates and pallets;
-Shipping via sea, air, courier;
-Lead-time: 3-8 weeks.

Related Products


Stepper Gear Motor

Linear Stepper Motor

Hybrid Stepper Motor

Q1. What phase is this stepping motor?
A: It is 2 phase with 1.8deg.
Q2. What is frame size for NEMA 8 Step Geared motor?
A: It is 20mm*20mm size.
Q3. I need a non-standard motor for my application, can you help?
A: Certainly, most of our customers request custom configurations in 1 form or another. If you plan on replacing a motor in an existing application, just send us a drawing or sample and we can help you find a suitable replacement. Alternatively, contact us and describe your application, our engineers will work with you to create a solution tailor-made for you.

Q4:How can I get your quotation of electrical step engine?
A:Please send us the details of the stepper motors you are in need of, also includes the quantity. 

Q. What are your Stepper Motors can be use to?
A: Our step motors can be use in CNC routers, CNC milling machine, engraving machine, packaging machine, filling machine, cutting machine, printing machine, laser machine, carving machine, labeling machine, CCTV and robot.
Q. What kind of Payment methods do you accept?
A: We can accept Paypal and , TT.
Q: What kind of shipping methods do you use?
A:1) For samples or small batch of micro stepper motor, air shipping is recommended. (DHL, Fedex, TNT, UPS, EMS), We will provide the tracking No. Once we get it after we ship out the products. 
2)For mass production or big batch of stepping motors, CHINAMFG shipping/sea shipment is recommended . 
Q: What is the lead time of stepper motors?
A: For mass production, the lead time depends on the quantities you need .
Q: What is your warranty time?
A: Warranty time: 12 months. And we provide life-long technical service and after-sale service.
Q: Can you make customized shaft?
A: We can make single shaft, double shaft or other shape.
Q: What is NEMA size of this motor?
A: It is NEMA 8 with 1.8 degree or 0.9 degree.

Q: What it the application for NEMA 8 StepperGeared Motor
A: It could used as 3D Printer motor. 
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Application: 3D Printer
Speed: 0-3000rpm
Excitation Mode: HB-Hybrid
Function: Driving
Operate Mode: The Three Single Phase
Type: Magnetic-Electric
US$ 80/Piece
1 Piece(Min.Order)




servo motor

What maintenance practices are recommended for ensuring the longevity of servo motors?

Maintaining servo motors properly is crucial to ensure their longevity and reliable performance. Here are some recommended maintenance practices:

1. Regular Cleaning:

Regularly clean the servo motor to remove dust, debris, and other contaminants that can affect its performance. Use a soft brush or compressed air to clean the motor’s exterior and ventilation ports. Avoid using excessive force or liquid cleaners that could damage the motor.

2. Lubrication:

Follow the manufacturer’s recommendations for lubrication intervals and use the appropriate lubricant for the motor. Lubricate the motor’s bearings, gears, and other moving parts as per the specified schedule. Proper lubrication reduces friction, minimizes wear, and helps maintain optimal performance.

3. Inspections:

Regularly inspect the servo motor for signs of wear, damage, or loose connections. Check for any unusual noises, vibrations, or overheating during operation, as these can indicate potential issues. If any abnormalities are detected, consult the manufacturer’s documentation or seek professional assistance for further evaluation and repair.

4. Electrical Connections:

Ensure that all electrical connections to the servo motor, such as power cables and signal wires, are secure and properly insulated. Loose or damaged connections can lead to electrical problems, voltage fluctuations, or signal interference, which can affect the motor’s performance and longevity.

5. Environmental Considerations:

Take into account the operating environment of the servo motor. Ensure that the motor is protected from excessive moisture, dust, extreme temperatures, and corrosive substances. If necessary, use appropriate enclosures or protective measures to safeguard the motor from adverse environmental conditions.

6. Software and Firmware Updates:

Stay updated with the latest software and firmware releases provided by the servo motor manufacturer. These updates often include bug fixes, performance enhancements, and new features that can improve the motor’s functionality and reliability. Follow the manufacturer’s instructions for safely updating the motor’s software or firmware.

7. Training and Documentation:

Ensure that personnel responsible for the maintenance of servo motors are properly trained and familiar with the manufacturer’s guidelines and documentation. This includes understanding recommended maintenance procedures, safety precautions, and troubleshooting techniques. Regular training and access to up-to-date documentation are essential for effective servo motor maintenance.

8. Professional Servicing:

If a servo motor requires complex repairs or servicing beyond regular maintenance, it is advisable to consult a qualified technician or contact the manufacturer’s service center. Attempting to repair or modify the motor without proper expertise can lead to further damage or safety hazards.

By following these maintenance practices, servo motors can operate optimally and have an extended lifespan. Regular cleaning, lubrication, inspections, secure electrical connections, environmental considerations, software updates, training, and professional servicing all contribute to ensuring the longevity and reliable performance of servo motors.

servo motor

Can you explain the concept of torque and speed in relation to servo motors?

Torque and speed are two essential parameters in understanding the performance characteristics of servo motors. Let’s explore these concepts in relation to servo motors:


Torque refers to the rotational force produced by a servo motor. It determines the motor’s ability to generate rotational motion and overcome resistance or load. Torque is typically measured in units of force multiplied by distance, such as Nm (Newton-meter) or oz-in (ounce-inch).

The torque output of a servo motor is crucial in applications where the motor needs to move or control a load. The motor must provide enough torque to overcome the resistance or friction in the system and maintain the desired position or motion. Higher torque allows the motor to handle heavier loads or more challenging operating conditions.

It is important to note that the torque characteristics of a servo motor may vary depending on the speed or position of the motor. Manufacturers often provide torque-speed curves or torque-position curves, which illustrate the motor’s torque capabilities at different operating points. Understanding these curves helps in selecting a servo motor that can deliver the required torque for a specific application.


Speed refers to the rotational velocity at which a servo motor operates. It indicates how fast the motor can rotate and how quickly it can achieve the desired position or motion. Speed is typically measured in units of revolutions per minute (RPM) or radians per second (rad/s).

The speed of a servo motor is crucial in applications that require rapid movements or high-speed operations. It determines the motor’s responsiveness and the system’s overall performance. Different servo motors have different speed capabilities, and the maximum achievable speed is often specified by the manufacturer.

It is worth noting that the speed of a servo motor may also affect its torque output. Some servo motors exhibit a phenomenon known as “speed-torque curve,” where the motor’s torque decreases as the speed increases. This behavior is influenced by factors such as motor design, winding resistance, and control algorithms. Understanding the speed-torque characteristics of a servo motor is important for selecting a motor that can meet the speed requirements of the application while maintaining sufficient torque.

Overall, torque and speed are interrelated parameters that determine the performance capabilities of a servo motor. The torque capability determines the motor’s ability to handle loads, while the speed capability determines how quickly the motor can achieve the desired motion. When selecting a servo motor, it is essential to consider both the torque and speed requirements of the application to ensure that the motor can deliver the desired performance.

servo motor

What is a servo motor, and how does it function in automation systems?

A servo motor is a type of motor specifically designed for precise control of angular or linear position, velocity, and acceleration. It is widely used in various automation systems where accurate motion control is required. Let’s explore the concept of servo motors and how they function in automation systems:

A servo motor consists of a motor, a position feedback device (such as an encoder or resolver), and a control system. The control system receives input signals, typically in the form of electrical pulses or analog signals, indicating the desired position or speed. Based on these signals and the feedback from the position sensor, the control system adjusts the motor’s operation to achieve the desired motion.

The functioning of a servo motor in an automation system involves the following steps:

  1. Signal Input: The automation system provides a control signal to the servo motor, indicating the desired position, speed, or other motion parameters. This signal can be generated by a human operator, a computer, a programmable logic controller (PLC), or other control devices.
  2. Feedback System: The servo motor incorporates a position feedback device, such as an encoder or resolver, which continuously monitors the motor’s actual position. This feedback information is sent back to the control system, allowing it to compare the actual position with the desired position specified by the input signal.
  3. Control System: The control system, typically housed within the servo motor or an external servo drive, receives the input signal and the feedback from the position sensor. It processes this information and generates the appropriate control signals to the motor.
  4. Motor Operation: Based on the control signals received from the control system, the servo motor adjusts its operation to achieve the desired motion. The control system varies the motor’s voltage, current, or frequency to control the motor’s speed, torque, or position accurately.
  5. Closed-Loop Control: Servo motors operate in a closed-loop control system. The feedback information from the position sensor allows the control system to continuously monitor and adjust the motor’s operation to minimize any deviation between the desired position and the actual position. This closed-loop control mechanism provides high accuracy, repeatability, and responsiveness in motion control applications.

One of the key advantages of servo motors in automation systems is their ability to provide precise and dynamic motion control. They can rapidly accelerate, decelerate, and change direction with high accuracy, allowing for intricate and complex movements. Servo motors are widely used in applications such as robotics, CNC machines, printing presses, packaging equipment, and automated manufacturing systems.

In summary, a servo motor is a specialized motor that enables accurate control of position, velocity, and acceleration in automation systems. Through the combination of a control system and a position feedback device, servo motors can precisely adjust their operation to achieve the desired motion. Their closed-loop control mechanism and high responsiveness make them an essential component in various applications requiring precise and dynamic motion control.

China factory NEMA17, 23, 24, 34 Electrical Step Hybrid Stepper Servo Motor 1.8deg 2 Phase 3 Phase 4 Phase with Encoder   vacuum pump booster	China factory NEMA17, 23, 24, 34 Electrical Step Hybrid Stepper Servo Motor 1.8deg 2 Phase 3 Phase 4 Phase with Encoder   vacuum pump booster
editor by CX 2024-05-14