May 10, 2023

Comparison of Aluminum Plate Motors and Iron Plate Motors

I believe that many friends are more interested in the advantages and disadvantages of aluminum shell motors and cast iron motors. Today I will sort out some information about whether the aluminum shell of the motor is better or the cast iron one and share it with you. I hope it can solve your problem. doubt.

Aluminum shell motor:
The material used is aluminum. The advantages of aluminum are light weight, good heat dissipation, good thermal conductivity, die-casting, good plasticity, higher elongation than iron, low noise, and good motion stability. The disadvantages are high price and low hardness. Suitable devices Where no effort is required.

Cast iron motor:
The motor casing is made of cast iron, which has high hardness, strong resistance to external pressure, and low price. It can be installed in some places with large driving force and poor environment. The disadvantages are heavy weight, poor thermal conductivity, no die casting, poor plasticity, and lower elongation than aluminum. Noise, less stability than aluminum.

The differences and advantages and disadvantages of aluminum motors and cast iron motors are far more than the above. Through actual work and life, you can also find more differences and advantages and disadvantages between them, so as to choose a motor that is more suitable for your equipment.

Traditional Manufacturing

What are the advantages and disadvantages of the motor aluminum shell and the cast iron shell?

Generally, the motors with aluminum shells are stable motors, work in DC, and rotate at high speed. They are all installed in places where the requirements are not very high, because aluminum is relatively soft. The aluminum shell is lighter than the iron shell, has good thermal conductivity, can be die-cast, has good plasticity, has a higher elongation than iron, has a higher price, and has a lower hardness. Motors with high center ratios do not have aluminum housings because aluminum has insufficient mechanical strength.

Cast iron motors are relatively strong, and they are all installed in places with strong working force and poor environment, and their stability is not as good as aluminum ones.

Aluminum enclosures for small motors have the following considerations:
1. The density of aluminum is relatively small, which can reduce the weight of the whole machine.
2. The thermal conductivity of aluminum is better than that of iron, which is beneficial to the heat dissipation of the motor.
3. The strength of aluminum is low, which is convenient for processing and manufacturing and saves processing costs.

We know that in an AC motor, the casing does not participate in the conduction between the electrical circuit and the magnetic circuit in the motor, so it will not affect the electrical performance of the motor, but only the mechanical performance.

Motor aluminum housing and cast iron housing. The difference between the motor housing is cast iron or aluminum?

Motors with a shaft height above 315 have almost no aluminum shell due to poor mechanical strength. Motors with shaft heights from about 80 to 225 are available in cast iron and aluminum housings. These two materials should not have much effect on the overall performance of the motor.

The difference between cast iron and aluminum for motor housings is:

1. The motor casing is made of cast iron, which is durable, can withstand knocking, and has high mechanical strength. Disadvantages: It is relatively heavy, easy to rust, and has poorer heat dissipation than aluminum.

2. The motor casing is made of aluminum, which is beautiful, not easy to rust, easy to process, and has good heat dissipation performance. However, the mechanical strength is poor, the cost is high, and the corresponding price is also high.

3. In terms of electrical performance, whether the motor casing is cast iron or aluminum is the same.