China Hot selling Three Phase Electrical Servo Motor (150ST-L23020A) vacuum pump

Product Description

Product characteristics
   Ultra-high intrinsic coercivity, high temperature rare earth permanent,magnet material, strong resistance to magnetic energy.Using electromagnetic design optimization, aimost with the entire speed,range constant torque output,Sinusoidal magnet field design, smooth low-speed torque high overload, capability,Class F insulation, IP55 protection structure, environmental applicability, safe and reliable use.

Technical Data

Technical Data                  
Frame size 60ST-L00630A 60ST-L01330A 60ST-L01930A 80ST-L01330A 80ST-L57130A 80ST-L03330A 90ST-L57130A 90ST-L5710A 90ST-L 0571 1A
Rated Voltage(3phase) 220V 220V 220V 220V 220V 220V 220V 220V 220V
Rated Power(kw) 0.2 0.4 0.6 0.4 0.75 1 0.75 0.73 1
Rated Torque(N.m) 0.6 1.3 1.9 1.3 2.4 3.3 2.4 3.5 4
Max Torque(N.m) 1.911 3.8 5.73 3.9 7.2 9.9 7.2 10.5 12
Rated Speed(r/min) 3000 3000 3000 3000 3000 3000 3000 2000 3000
Rated current(A) 1.5 2.8 3.5 2.6 4.2 4.5 3 3 4
V/Krpm 28 28 28 21.05 22.77 29.27 51 67 60
Ω/phase 11.6 5.83 3.49 1.858 0.901 1.081 3.2 4.06 2.69
mH/phase 22 12.23 8.47 11.956 6.552 8.29 7 9.7 6.21
LA(mm) 106 131 154 135 160 181 152 175 185
Frame size 110ST-L57130A 110ST-L04030A 110ST-L05030A 110ST-L06571A 110ST-L06030A 130ST-L 0571 1A 130ST-L 0571 1A 130ST-L06571A 130-7720
Rated Voltage(3 phase) 220V 220V 220V 220V 220V 220V 220V 220V 220V
Rated Power(kw) 0.6 1.2 1.5 1.2 1.6 1 1.3 1.5 1.6
Rated Torque(N.m) 2.00  4 5 6 6 4 5 6 7.7
Max Torque(N.m) 6 12 15 18 18 13 15 18 23.1
Rated Speed(r/min) 3000 3000 3000 2000 3000 2500 2500 2500 2000
Rated current(A) 4 5 6 6 8 4 5 6 6
V/Krpm 23.59  33.74 33.84 41.39 30.54 37.72 38.67 37.34 47.59
Ω/phase 0.982 0.779 0.567 0.64 0.338 1.108 0.867 0.605 0.66
mH/phase 2.98  3.026 2.316 2.764 1.515 3.76 3.124 2.317 2.83
LA(mm) 158 189 204 217 217 165 173 183 197
Frame size 130ST-L5710A 130ST-L5715A 130ST-L5710A 130ST-L10015A 130ST-L10571A 130ST-L15015A 130ST-L15571A   150-23571
Rated Voltage(3 phase) 220V 220V 220V 220V 220V 220V 220V   220V
Rated Power(kw) 1.6 2 2.4 1.5 2.6 2.3 3.8   1.6
Rated Torque(N.m) 7.70  7.7 7.7 10 10 15 15   7.7
Max Torque(N.m) 23.1 23.1 23.1 30 30 45 45   23.1
Rated Speed(r/min) 2000.00  2500 3000 1500 2500 1500 2500   2000
Rated current(A) 6 7.5 9 6 10 9.5 17   6
V/Krpm 47.59  40.03 32.22 64.89 38.76 68.13 34.07   47.59
Ω/phase 0.66 0.454 0.282 0.801 0.262 0.458 0.102   0.66
mH/phase 2.83  1.913 1.232 3.675 1.258 2.369 0.598   2.83
LA(mm) 197 197 197 218 218 263 263   197
Frame size 150ST-L15571A 150ST-L18571A 150ST-L23571A 150ST-L27571A 180ST-L19571A 180ST-L23571A 180ST-L31018A    
Rated Power(KW) 3.8 3.6 4.7 5.5 4 5 6    
Rated Torque(N.m) 15 18 23 27 19 23 31    
Rated Speed(rpm) 2500 2000 2000 2000 2000 2000 1800    
Rated Current(A) 16.5 16.5 20.5 20.5 16.8 28 22    
Max Torque(N.m) 45 54 69 81 57.3 71.6 79.5    
Voltage(V) 220 220 220 220 220 220 220    
Frame size 190ST-H44017A 190ST-H56017A 190ST-H76015A 190ST-H95015A 230ST-H11415A 230ST-H14615A 230ST-H19115A 230ST-H23515A 130-7720
Rated Power(KW) 8 10 12 15 18 23 30 37 220V
Rated Torque(N.m) 44 56 76 95 114 146 191 235 1.6
Rated Speed(rpm) 1700 1700 1500 1500 1500 1500 1500 1500 7.7
Rated Current(A) 17.5 20.1 27 34 44.1 52.8 68.5 83.4 2000
 Efficiency 90.5 91.1 91.6 92.1 92.5 93 93.6 94.2  
Voltage(V) 380 380 380 380 380 380 380 380 47.59
Rotor Inertia(Kg.cm2) 0.01 0.014 0.016 0.019 0.035 0.045 0.056 0.071  
weight(kg) 38.8 43.8 49.5 54.7 73 88 105 122  

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Contact Information:

Evan Zhou



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Application: Industrial
Speed: Constant Speed
Number of Stator: Three-Phase
Function: Driving, Control
Casing Protection: Closed Type
Number of Poles: 2


servo motor

How does the cost of servo motors vary based on their specifications and features?

The cost of servo motors can vary significantly based on their specifications and features. Several factors influence the price of servo motors, and understanding these factors can help in selecting the most cost-effective option for a specific application. Let’s explore in detail how the cost of servo motors can vary:

1. Power Rating:

One of the primary factors affecting the cost of a servo motor is its power rating, which is typically measured in watts or kilowatts. Higher power-rated servo motors generally cost more than lower-rated ones due to the increased materials and manufacturing required to handle higher power levels. The power rating of a servo motor is determined by the torque and speed requirements of the application. Higher torque and speed capabilities often correspond to higher costs.

2. Torque and Speed:

The torque and speed capabilities of a servo motor directly impact its cost. Servo motors designed for high torque and high-speed applications tend to be more expensive due to the need for robust construction, specialized materials, and advanced control electronics. Motors with higher torque and speed ratings often require more powerful magnets, larger windings, and higher precision components, contributing to the increase in cost.

3. Frame Size:

The physical size or frame size of a servo motor also plays a role in determining its cost. Servo motors come in various frame sizes, such as NEMA (National Electrical Manufacturers Association) standard sizes in North America. Larger frame sizes generally command higher prices due to the increased materials and manufacturing complexity required to build larger motors. Smaller frame sizes, on the other hand, may be more cost-effective but may have limitations in terms of torque and speed capabilities.

4. Feedback Mechanism:

The feedback mechanism used in a servo motor affects its cost. Servo motors typically employ encoders or resolvers to provide feedback on the rotor position. Higher-resolution encoders or more advanced feedback technologies can increase the cost of the motor. For example, servo motors with absolute encoders, which provide position information even after power loss, tend to be more expensive than those with incremental encoders.

5. Control Features and Technology:

The control features and technology incorporated into a servo motor can influence its cost. Advanced servo motors may offer features such as built-in controllers, fieldbus communication interfaces, advanced motion control algorithms, or integrated safety functions. These additional features contribute to the cost of the motor but can provide added value and convenience in certain applications. Standard servo motors with basic control functionality may be more cost-effective for simpler applications.

6. Brand and Reputation:

The brand and reputation of the servo motor manufacturer can impact its cost. Established and reputable brands often command higher prices due to factors such as quality assurance, reliability, technical support, and extensive product warranties. While motors from less-known or generic brands may be more affordable, they may not offer the same level of performance, reliability, or long-term support.

7. Customization and Application-Specific Requirements:

If a servo motor needs to meet specific customization or application-specific requirements, such as specialized mounting options, environmental sealing, or compliance with industry standards, the cost may increase. Customization often involves additional engineering, design, and manufacturing efforts, which can lead to higher prices compared to off-the-shelf servo motors.

It’s important to note that the cost of a servo motor is not the sole indicator of its quality or suitability for a particular application. It is essential to carefully evaluate the motor’s specifications, features, and performance characteristics in relation to the application requirements to make an informed decision.

In summary, the cost of servo motors varies based on factors such as power rating, torque and speed capabilities, frame size, feedback mechanism, control features and technology, brand reputation, and customization requirements. By considering these factors and comparing different options, it is possible to select a servo motor that strikes the right balance between performance and cost-effectiveness for a specific application.

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

Can you explain the difference between a servo motor and a regular electric motor?

A servo motor and a regular electric motor are both types of electric motors, but they have distinct differences in terms of design, control, and functionality.

A regular electric motor, also known as an induction motor or a DC motor, is designed to convert electrical energy into mechanical energy. It consists of a rotor, which rotates, and a stator, which surrounds the rotor and generates a rotating magnetic field. The rotor is connected to an output shaft, and when current flows through the motor’s windings, it creates a magnetic field that interacts with the stator’s magnetic field, resulting in rotational motion.

On the other hand, a servo motor is a more specialized type of electric motor that incorporates additional components for precise control of position, speed, and acceleration. It consists of a regular electric motor, a sensor or encoder, and a feedback control system. The sensor or encoder provides feedback on the motor’s current position, and this information is used by the control system to adjust the motor’s behavior.

The key difference between a servo motor and a regular electric motor lies in their control mechanisms. A regular electric motor typically operates at a fixed speed based on the voltage and frequency of the power supply. In contrast, a servo motor can be controlled to rotate to a specific angle or position and maintain that position accurately. The control system continuously monitors the motor’s actual position through the feedback sensor and adjusts the motor’s operation to achieve the desired position or follow a specific trajectory.

Another distinction is the torque output of the motors. Regular electric motors generally provide high torque at low speeds and lower torque at higher speeds. In contrast, servo motors are designed to deliver high torque at both low and high speeds, which makes them suitable for applications that require precise and dynamic motion control.

Furthermore, servo motors often have a more compact and lightweight design compared to regular electric motors. They are commonly used in applications where precise positioning, speed control, and responsiveness are critical, such as robotics, CNC machines, automation systems, and remote-controlled vehicles.

In summary, while both servo motors and regular electric motors are used to convert electrical energy into mechanical energy, servo motors offer enhanced control capabilities, precise positioning, and high torque at various speeds, making them well-suited for applications that require accurate and dynamic motion control.

China Hot selling Three Phase Electrical Servo Motor (150ST-L23020A)   vacuum pump	China Hot selling Three Phase Electrical Servo Motor (150ST-L23020A)   vacuum pump
editor by CX 2024-03-09