June 14, 2023

A Few Points to Note When Choosing an AC or DC Geared Motor

When designing and manufacturing new products, geared motors can be used to maximize their efficiency and potential. Select AC AC geared motor or DC geared motor according to application requirements (miniature geared motor, vertical geared motor or horizontal geared motor may also be related to your actual application scene), which can ensure that it is your ideal pick.

1. Understand the application requirements.

Knowing the actual needs of your application will help you determine if you need a DC or AC geared motor or a specific class. These needs include:

a. Environment: application and ambient temperature, and protection level (IP)

b. General Requirements: Envelope Size, Side and Overhang Loads, Lubrication Category, Mounting Orientation, and Mounting Category.

c. Input Power: Maximum Current (Amps), Frequency (Hertz), Voltage and Control Category.

d. Geared Motor Performance: Speed, Torque, Duty Cycle, Displacement, Running and Stall Torque.

e. Geared Motor Specifications: Size, Gross Weight, Noise Level, Maintenance Level and Life Expectancy.

2. Select the appropriate geared motor.

a. Take the list of application requirements you gathered and compare it to the specifications of the DC and AC geared motors of interest, such as general purpose, brushless DC geared motors, AC induction motors, and permanent magnet motors. Instead of a pre-engineered geared motor, you will likely find that selecting the gearbox and geared motor separately may be the best fit for your application.

b. Match the performance curve, pull-up torque and yield strength of the gear reducer.

When selecting a geared motor, the correct torque and speed are very important. Take advantage of manufacturer or supplier performance curves for torque, speed and efficiency to find the geared motor that meets your needs. After finding some performance curves, yield strength, and pull-up torque that meet the application needs, check design constraints (such as thermal characteristics) to narrow the selection.

After picking out an AC or DC geared motor, your job won’t be done. Run several tests to ensure that the geared motor is performing well under typical operating conditions and is not overheating, overvoltage, or noisy.

CE-Certified Reduction Brake Motor

3. Select the motor brand

When choosing a geared motor, try to choose a brand with high reputation and reliable quality, and avoid choosing products with low quality and low price. These brands usually have better product performance and after-sales service, which can ensure the long-term stable operation of the equipment. In addition, you can also consider purchasing products with a long warranty period to reduce maintenance costs.

4. Consider cost and value for money

When choosing a geared motor, cost is a factor that must be considered. Although some high-quality geared motors are more expensive, their stable performance and long service life can save maintenance and replacement costs in the long run. When selecting a geared motor, factors such as performance, quality, and cost should be considered comprehensively, and the product with the best cost performance should be selected.

5. Consider maintenance and replacement convenience

When selecting a geared motor, the convenience of maintenance and replacement should also be considered. Choosing a geared motor that is easy to maintain and replace can reduce maintenance costs and downtime. In addition, the repair and maintenance cycle of the motor should also be considered to reduce the overall maintenance cost.

6. Understand the reputation of suppliers and after-sales service

When choosing a geared motor, you should know the supplier’s reputation and after-sales service. Choosing a supplier with good reputation and after-sales service can guarantee product quality and solve equipment failure problems in time. In addition, you should also understand the supplier’s after-sales service policy, such as warranty period, maintenance cycle, etc., so that you can quickly solve the problem when the equipment fails.