China Good quality NEMA 11 Low Rpm Two Phase Stepping Motor with Encoder for CCTV vacuum pump connector

Product Description

I. CH MOTOR – Hybrid Stepping Motor H281(28MM) – NEMA 11


– Motor Length: 28~50MM
– Rated Current: 0.35~0.6A
– Phase Resistance: 4.2~24Ohm
– Holding Torque (N. Cm): 4.5~10N. Cm
– Lead Wire (No. ): 4
– Motor Weight: 105~180g
-Application: CCTV Motor, Robot Motor


 Electrical Specification:

Series Model Step Angle ( o ) L
Rated Current (A) Phase
( Ω )
Inductance (mH)
Holding Torque
Detent Torque ( Lead
( g)
H281-00506 1.8 28 0.6 4.2 2.2 4.5 0.3 4 105
H281-00504 1.8 28 0.35 12 5.8 4.5 0.3 4 105
H281-00606A 1.8 33 0.6 5.5 3.2 6.0 0.4 4 110
H281-00604A 1.8 33 0.35 15 9.2 6.0 0.4 4 110
H281-00606B 1.8 41 0.6 7.0 6.0 6.0 0.5 4 140
H281-00604B 1.8 41 0.35 20 15 6.0 0.5 4 140
H281-57106 1.8 50 0.6 9.0 7.2 10 0.8 4 180
H281-57104 1.8 50 0.35 24 18.5 10 0.8 4 180

Custom Option:

About Us:

We specialized in researching, developing and servicing electric motors, gearbox and high precision gears with the small modules. After years of development, we have an independent product design and R&D team, service team and professional quality control team. 

What’s more, we have 2 joint ventures. One is located in HangZhou, which produces hybrid stepper motor, precious linear stepper motor, brushless DC motor, servo motor, stepper motor driver, brushless motor driver, encoder and brake. Another 1 is located in HangZhou, which produces DC gear motor. The factory has dozens of CNC machines and high precision test equipment, implements the process management and automatic operation in most producing process.

Work Flow:

Related Products:

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Application: Clocks and Watches
Speed: Low Speed
Number of Stator: Two-Phase
Excitation Mode: HB-Hybrid
Function: Driving
Number of Poles: 2


3 phase motor

Can you explain the advantages of using a 3-phase motor?

Using a 3-phase motor offers several advantages over other types of motors. Here’s a detailed explanation of the advantages of using a 3-phase motor:

  • High Efficiency: 3-phase motors are known for their high efficiency. They can convert electrical energy into mechanical energy with minimal losses. The balanced three-phase power supply and the design of the motor result in a smoother and more efficient operation compared to single-phase motors.
  • Power Factor: 3-phase motors have a better power factor compared to single-phase motors. Power factor is a measure of how effectively the motor utilizes the electrical power. By having a higher power factor, 3-phase motors reduce the amount of reactive power required from the power supply, resulting in improved overall power system efficiency.
  • High Starting Torque: 3-phase motors can provide high starting torque, making them suitable for applications that require the motor to start under load. The three-phase power supply and the design of the motor enable it to produce a strong rotating magnetic field, which allows for efficient starting and acceleration of the motor’s rotor.
  • Smooth Operation: The rotating magnetic field produced by the three-phase power supply results in smooth and continuous operation of the motor. This characteristic makes 3-phase motors ideal for applications that require constant and reliable operation, such as industrial machinery, pumps, compressors, and HVAC systems.
  • Compact Size and Weight: 3-phase motors tend to be more compact and lightweight compared to equivalent power single-phase motors. This compactness is due to the even distribution of the windings around the stator and the absence of additional starting components often required in single-phase motors.
  • Higher Power Output: 3-phase motors can deliver higher power output compared to single-phase motors of similar size. The balanced three-phase power supply and the design of the motor allow for efficient utilization of electrical power, enabling the motor to provide greater mechanical power output.
  • Lower Maintenance: 3-phase motors generally require lower maintenance compared to other types of motors. The balanced three-phase power supply and the absence of starting components, such as capacitors or centrifugal switches, reduce wear and tear, resulting in longer motor life and reduced maintenance requirements.
  • Wide Availability and Standardization: 3-phase motors are widely available and standardized, making them easily accessible for various applications. They are manufactured in a wide range of sizes and power ratings, allowing for flexibility in selecting the appropriate motor for specific requirements.

Overall, the advantages of using a 3-phase motor include high efficiency, better power factor, high starting torque, smooth operation, compact size and weight, higher power output, lower maintenance requirements, and wide availability. These advantages make 3-phase motors suitable for a wide range of applications in industrial, commercial, and residential settings.

3 phase motor

How do manufacturers ensure the quality and reliability of 3-phase motors?

Manufacturers employ various measures and processes to ensure the quality and reliability of 3-phase motors. Here’s a detailed explanation of the key practices manufacturers follow:

  • Design and Engineering: Manufacturers invest significant effort in the design and engineering phases of motor development. They employ experienced engineers who design the motors to meet specific performance, efficiency, and reliability requirements. Advanced computer-aided design (CAD) software and simulation tools are used to optimize motor designs and ensure compatibility with intended applications.
  • Material Selection: High-quality materials are crucial for the durability and performance of 3-phase motors. Manufacturers carefully select materials that can withstand the mechanical stresses, electrical loads, and environmental conditions the motors may encounter. This includes choosing appropriate insulation materials, conductors, bearings, and other components to ensure long-term reliability.
  • Manufacturing Processes: Stringent manufacturing processes are implemented to ensure consistent quality and reliability. Manufacturers adhere to industry standards and best practices, such as ISO 9001 certification, to maintain high manufacturing standards. Automated assembly lines, precision machining, and rigorous quality control inspections are employed to minimize variations and defects during production.
  • Testing and Quality Control: Thorough testing is performed at various stages of motor production to verify performance, electrical characteristics, and reliability. Manufacturers conduct tests such as insulation resistance testing, high-potential (hipot) testing, vibration testing, temperature rise testing, and load testing. These tests help identify any potential issues and ensure that motors meet or exceed specified standards and performance criteria.
  • Quality Assurance Systems: Manufacturers implement robust quality assurance systems to monitor and control the entire manufacturing process. This includes implementing quality management systems (QMS) and continuous improvement methodologies, such as Six Sigma or lean manufacturing, to identify areas for enhancement and minimize defects. Regular audits and inspections are conducted to ensure compliance with quality standards and customer requirements.
  • Certifications and Compliance: Reputable manufacturers ensure that their 3-phase motors comply with relevant industry standards and certifications. These can include compliance with standards such as NEMA (National Electrical Manufacturers Association) or IEC (International Electrotechnical Commission), as well as safety certifications like UL (Underwriters Laboratories) or CSA (Canadian Standards Association). Compliance with these standards ensures that the motors meet essential electrical and mechanical safety requirements.
  • Reliability Testing: Manufacturers subject 3-phase motors to extensive reliability testing to simulate real-world operating conditions and verify their performance under various stress factors. This includes testing for endurance, temperature cycling, humidity exposure, voltage fluctuations, and other environmental factors that the motors may encounter during their lifespan. Reliability testing helps identify and address any potential issues before the motors reach the market.
  • Supplier Qualification: Manufacturers carefully select and qualify their suppliers to ensure the quality and consistency of components used in the motor’s construction. Suppliers are evaluated based on their manufacturing capabilities, quality control processes, and adherence to industry standards. Regular supplier audits and performance evaluations are conducted to maintain the desired level of quality in the supply chain.
  • Customer Feedback and Warranty: Manufacturers value customer feedback and utilize it to further improve the quality and reliability of their 3-phase motors. They provide warranties and after-sales support to address any issues that may arise during the motor’s operational lifespan. By actively engaging with customers and addressing their concerns, manufacturers can continuously enhance their products and ensure customer satisfaction.

By following these practices, manufacturers strive to deliver high-quality and reliable 3-phase motors that meet the demanding requirements of various applications. These measures help ensure that the motors perform optimally, have a long lifespan, and provide reliable operation in diverse industrial and commercial settings.

3 phase motor

How do 3-phase motors handle variations in voltage and frequency?

3-phase motors are designed to handle variations in voltage and frequency within certain limits. Here’s a detailed explanation of how they handle these variations:

  • Voltage Variations:
    • 3-phase motors are typically designed to operate within a specific voltage range. As long as the applied voltage remains within this range, the motor can function properly.
    • When the voltage supplied to a 3-phase motor varies, the motor’s performance may be affected. If the voltage drops significantly below the rated voltage, the motor may experience reduced torque and power output. Conversely, if the voltage exceeds the rated value, the motor may draw excessive current, leading to overheating and potential damage.
    • To handle voltage variations, 3-phase motors often incorporate protective devices such as thermal overload relays or motor protection circuits. These devices can detect abnormal operating conditions caused by voltage fluctuations and take appropriate actions, such as shutting down the motor or reducing its load.
  • Frequency Variations:
    • The speed of a 3-phase motor is directly proportional to the frequency of the power supply. When the frequency deviates from the rated value, the motor’s speed and performance can be affected.
    • If the frequency increases, the motor’s speed will also increase, resulting in higher torque and power output. Conversely, a decrease in frequency will lead to a decrease in speed, resulting in reduced torque and power output.
    • 3-phase motors can handle frequency variations up to a certain extent. However, if the frequency deviates too far from the rated value, the motor’s performance may become unstable or it may fail to start altogether.
    • For precise control over motor speed, variable frequency drives (VFDs) can be used. VFDs can adjust the frequency of the power supply to the motor, allowing for precise speed control and compensation for frequency variations.
  • Voltage and Frequency Tolerance:
    • International standards specify the acceptable voltage and frequency tolerances for 3-phase motors. These standards ensure that motors can operate reliably and safely within specified voltage and frequency ranges.
    • Motor manufacturers often provide voltage and frequency tolerance specifications for their products. These specifications indicate the allowable range of voltage and frequency variations that the motor can handle without compromising its performance or safety.
    • When selecting a 3-phase motor, it is important to consider the voltage and frequency requirements of the specific application and ensure that the motor’s voltage and frequency ratings align with the available power supply.

Overall, 3-phase motors are designed to handle variations in voltage and frequency within specified limits. They incorporate protective devices and can be paired with control devices such as VFDs to compensate for voltage and frequency fluctuations, ensuring optimal performance and protection against potential damage.

China Good quality NEMA 11 Low Rpm Two Phase Stepping Motor with Encoder for CCTV   vacuum pump connector	China Good quality NEMA 11 Low Rpm Two Phase Stepping Motor with Encoder for CCTV   vacuum pump connector
editor by CX 2024-03-28