China Good quality Z4 160V 440V 1.5~600kw Excited Geared DC Motor Price Z4-100-1 2kw 1310rpm 400V vacuum pump for ac

Product Description

Z4 160V 440V 1.5~600KW Excited Geared DC Motor Price

Widely applied in the industry of metallurgy, papermaking, printing, textile, printing and dyeing, cement and machine tools.

General Description

  • Frame sizes: 100-450           
  • Rated output: 1.5-600kW
  • Insulation class: F               
  • Voltage:160V / 440V
  • Duty cycle: S1                  
  • Excitation mode: Separate excitation
  • Rotation speed: 3000,1500,1000,750,600,500,400,300,200r/min

Great speed control system by which speed can be reduced by lowering voltage with constant torque or raised by lowering exciting current with constant output; wide range of speed regulation; small size, lightweight; high output power, strong overload capacity.

Altitude not exceeds 1000m, highest ambient temperature shall be no higher than +40ºC;can’t work in the circumstance where acidic/alkaline gas, or some other gas that may damage the insulation exist; the motor powered by rectifier supply; standard exciting voltage is 180V,reinforced excitation is allowed but its voltage can bot be higher than 500V.

Designation of Types

Mounting and Structure
1. Enclosure and mounting type     
a. Protection class is IP21S, IP23 or IP44.
b. Mounting type see below table (frame with feet).

Mounting Frame size







(feet are not for installation purpose )


(feet are not for installation purpose)



2. Cooling method
This series motors are cooled by forced air with separated built-on blower which is connected to independent power supply, and also fitted with air filter. The cooling method of the motor is IC06, motor of IC17, IC37 can also be customized.
 a. Z4-100~Z4-160, blower locates at NDE
 b. Z4-180~Z4-450, blower locates at DE
c. Parameter of the cooling air and blower motor power see table (three phase, 2 poles, 380V).
    Noted: Consult the producer when clients are interested in the following type motor:
a. Frame size Z4-100~Z4-225 totally enclosed self-cooled motor (IC410).
b. Frame size Z4-180~Z4-450 separately-cooled motor, blower at NDE (IC06).
c. Frame size Z4-100~Z4-200 self-cooled motor, fan on the shaft (IC01).
d. Frame size Z4-160~Z4-355 totally enclosed motor with air-air cooler (IC666).
e. Frame size Z4-160~Z4-450 totally enclosed motor with air-water cooler (IC86W).

3. Terminal box is at the right side of the frame from the view of DE (The motor whose terminal box is at the left side or on the top can be also customized).
4. Motor whose speed generator or rotary encoder is at NDE can also be customized.
5.  Motor is connected to flexible coupling.
Sheet 1

Frame Blowing rate Pressure Output Power
m3/h pa kW
Z4-100 160 200 0.04
Z4-112 220 300 0.06
Z4-132 360 450 0.18
Z4-160 790 600 0.37
Z4-180 1200 940 1.1
Z4-200 1600 800 1.1
Z4-225 2880 1400 3.0
Z4-250 3000 1400 3.0
Z4-280 4000 1600 4.0
Z4-315 4680 1600 5.5
Z4-355 5200 1600 5.5
Z4-400 7200 1800 5.5
Z4-450 9000 1800 7.5


Product and System Certificates

Patent Certificates


Show Room

Premium Service

Quality Control

Wannan Motor Production Workshop and Flow Chart

Certificates and more COMPANY information please go to “ABOUT US”
Welcome to contact us directly…

CHINAMFG MOTOR        INDUSTRIAL SOLUTIONS /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Universal, Industrial, Household Appliances, Car, Power Tools, Geared DC Motor
Operating Speed: Adjust Speed
Excitation Mode: Excited
Function: Control, Driving, Geared DC Motor
Casing Protection: Protection Type
Number of Poles: 4


dc motor

How does the speed control of a DC motor work, and what methods are commonly employed?

The speed control of a DC (Direct Current) motor is essential for achieving precise control over its rotational speed. Various methods can be employed to regulate the speed of a DC motor, depending on the specific application requirements. Here’s a detailed explanation of how speed control of a DC motor works and the commonly employed methods:

1. Voltage Control:

One of the simplest methods to control the speed of a DC motor is by varying the applied voltage. By adjusting the voltage supplied to the motor, the electromotive force (EMF) induced in the armature windings can be controlled. According to the principle of electromagnetic induction, the speed of the motor is inversely proportional to the applied voltage. Therefore, reducing the voltage decreases the speed, while increasing the voltage increases the speed. This method is commonly used in applications where a simple and inexpensive speed control mechanism is required.

2. Armature Resistance Control:

Another method to control the speed of a DC motor is by varying the armature resistance. By inserting an external resistance in series with the armature windings, the total resistance in the circuit increases. This increase in resistance reduces the armature current, thereby reducing the motor’s speed. Conversely, reducing the resistance increases the armature current and the motor’s speed. However, this method results in significant power loss and reduced motor efficiency due to the dissipation of excess energy as heat in the external resistance.

3. Field Flux Control:

Speed control can also be achieved by controlling the magnetic field strength of the motor’s stator. By altering the field flux, the interaction between the armature current and the magnetic field changes, affecting the motor’s speed. This method can be accomplished by adjusting the field current through the field windings using a field rheostat or by employing a separate power supply for the field windings. By increasing or decreasing the field flux, the speed of the motor can be adjusted accordingly. This method offers good speed regulation and efficiency but requires additional control circuitry.

4. Pulse Width Modulation (PWM):

Pulse Width Modulation is a widely used technique for speed control in DC motors. It involves rapidly switching the applied voltage on and off at a high frequency. The duty cycle, which represents the percentage of time the voltage is on, is varied to control the effective voltage applied to the motor. By adjusting the duty cycle, the average voltage across the motor is modified, thereby controlling its speed. PWM provides precise speed control, high efficiency, and low power dissipation. It is commonly employed in applications such as robotics, industrial automation, and electric vehicles.

5. Closed-Loop Control:

In closed-loop control systems, feedback from the motor’s speed or other relevant parameters is used to regulate the speed. Sensors such as encoders or tachometers measure the motor’s actual speed, which is compared to the desired speed. The difference, known as the error signal, is fed into a control algorithm that adjusts the motor’s input voltage or other control parameters to minimize the error and maintain the desired speed. Closed-loop control provides excellent speed regulation and accuracy, making it suitable for applications that require precise speed control, such as robotics and CNC machines.

These methods of speed control provide flexibility and adaptability to various applications, allowing DC motors to be effectively utilized in a wide range of industries and systems.

dc motor

How do DC motors compare to AC motors in terms of performance and efficiency?

When comparing DC (Direct Current) motors and AC (Alternating Current) motors, several factors come into play, including performance and efficiency. Here’s a detailed explanation of how DC motors and AC motors compare in terms of performance and efficiency:

1. Performance:

Speed Control: DC motors typically offer better speed control compared to AC motors. DC motors can be easily controlled by varying the voltage applied to the armature, allowing for precise and smooth speed regulation. On the other hand, AC motors rely on complex control methods such as variable frequency drives (VFDs) to achieve speed control, which can be more challenging and costly.

Starting Torque: DC motors generally provide higher starting torque compared to AC motors. The presence of a separate field winding in DC motors allows for independent control of the field current, enabling higher torque during motor startup. AC motors, especially induction motors, typically have lower starting torque, requiring additional starting mechanisms or devices.

Reversibility: DC motors offer inherent reversibility, meaning they can easily change their rotational direction by reversing the polarity of the applied voltage. AC motors, particularly induction motors, require more complex control mechanisms to achieve reversible operation.

Dynamic Response: DC motors have faster dynamic response characteristics compared to AC motors. They can quickly accelerate or decelerate, making them suitable for applications that require rapid changes in speed or precise control, such as robotics or servo systems.

2. Efficiency:

Full Load Efficiency: AC motors, especially three-phase induction motors, generally exhibit higher full load efficiencies compared to DC motors. This efficiency advantage is primarily due to the absence of commutation and the use of a rotating magnetic field in AC motors, which results in reduced energy losses and improved efficiency.

Partial Load Efficiency: DC motors can have higher efficiency at partial loads compared to AC motors. DC motors can be controlled by adjusting the armature voltage, allowing them to operate at reduced power while maintaining relatively high efficiency. AC motors, especially induction motors, may experience reduced efficiency at partial loads due to factors such as increased iron losses and reduced power factor.

Regenerative Braking: DC motors offer the advantage of regenerative braking, where the motor acts as a generator and converts kinetic energy into electrical energy during deceleration or braking. This regenerative braking capability allows for energy recovery, increasing overall system efficiency. AC motors typically require additional components or systems to achieve regenerative braking.

Power Factor: AC motors, when properly designed and operated, can have a power factor close to unity. This means that they draw relatively low reactive power from the electrical grid, resulting in improved power system efficiency. DC motors, on the other hand, may exhibit a lower power factor and require power factor correction measures if necessary.

In summary, DC motors and AC motors have their respective strengths and weaknesses in terms of performance and efficiency. DC motors excel in speed control, starting torque, reversibility, and dynamic response. AC motors, particularly three-phase induction motors, generally offer higher full load efficiency and power factor. However, DC motors can achieve higher efficiency at partial loads and have the advantage of regenerative braking. The choice between DC motors and AC motors depends on the specific application requirements, cost considerations, and the desired balance between performance and efficiency.

dc motor

What are the advantages and disadvantages of using DC motors in automotive applications?

DC (Direct Current) motors have been used in automotive applications for many years, although they have been largely replaced by other motor types such as AC (Alternating Current) motors and brushless DC motors in modern vehicles. However, there are still some advantages and disadvantages associated with using DC motors in automotive applications. Here’s a detailed explanation of the advantages and disadvantages:

Advantages of Using DC Motors in Automotive Applications:

1. Cost: DC motors tend to be less expensive compared to other motor types, such as AC motors or brushless DC motors. This cost advantage can make them an attractive option for certain automotive applications, especially in budget-conscious scenarios.

2. Simple Control: DC motors have a relatively simple control system. By adjusting the voltage applied to the motor, the speed and torque can be easily controlled. This simplicity of control can be advantageous in automotive applications where basic speed control is sufficient.

3. High Torque at Low Speeds: DC motors can provide high torque even at low speeds, making them suitable for applications that require high starting torque or precise low-speed control. This characteristic can be beneficial for automotive applications such as power windows, windshield wipers, or seat adjustments.

4. Compact Size: DC motors can be designed in compact sizes, making them suitable for automotive applications where space is limited. Their small form factor allows for easier integration into tight spaces within the vehicle.

Disadvantages of Using DC Motors in Automotive Applications:

1. Limited Efficiency: DC motors are typically less efficient compared to other motor types, such as AC motors or brushless DC motors. They can experience energy losses due to brush friction and electrical resistance, resulting in lower overall efficiency. Lower efficiency can lead to increased power consumption and reduced fuel economy in automotive applications.

2. Maintenance Requirements: DC motors that utilize brushes for commutation require regular maintenance. The brushes can wear out over time and may need to be replaced periodically, adding to the maintenance and operating costs. In contrast, brushless DC motors or AC motors do not have this maintenance requirement.

3. Limited Speed Range: DC motors have a limited speed range compared to other motor types. They may not be suitable for applications that require high-speed operation or a broad range of speed control. In automotive applications where high-speed performance is crucial, other motor types may be preferred.

4. Electromagnetic Interference (EMI): DC motors can generate electromagnetic interference, which can interfere with the operation of other electronic components in the vehicle. This interference may require additional measures, such as shielding or filtering, to mitigate its effects and ensure proper functioning of other vehicle systems.

5. Brush Wear and Noise: DC motors that use brushes can produce noise during operation, and the brushes themselves can wear out over time. This brush wear can result in increased noise levels and potentially impact the overall lifespan and performance of the motor.

While DC motors offer certain advantages in terms of cost, simplicity of control, and high torque at low speeds, they also come with disadvantages such as limited efficiency, maintenance requirements, and electromagnetic interference. These factors have led to the adoption of other motor types, such as brushless DC motors and AC motors, in many modern automotive applications. However, DC motors may still find use in specific automotive systems where their characteristics align with the requirements of the application.

China Good quality Z4 160V 440V 1.5~600kw Excited Geared DC Motor Price Z4-100-1 2kw 1310rpm 400V   vacuum pump for ac	China Good quality Z4 160V 440V 1.5~600kw Excited Geared DC Motor Price Z4-100-1 2kw 1310rpm 400V   vacuum pump for ac
editor by CX 2024-05-17