LED Display Cabinet Material Selection: Comparison Between Iron And Aluminum


Among many materials, iron and aluminum are the two most common choices for LED display cabinets. Iron cabinets are favored for their high strength and stability, while aluminum cabinets stand out for their lightweight and good corrosion resistance. So, in practical applications, how should we choose the cabinet material for the LED display screen?

1. Introduction to the iron LED display cabinet

The iron LED display cabinet performs excellently in terms of strength and stability. It has a strong load-bearing capacity, can maintain a stable structure even when carrying a heavier LED display, and is not prone to deformation or damage.

This advantage makes the iron cabinet highly applicable in large outdoor display screens and high-load applications. At the same time, the iron cabinet also shows good weather resistance in outdoor environments. It can resist the erosion of wind, rain, sun, and other natural factors and maintain a long service life.

From the perspective of raw material cost and production and processing cost, iron cabinet usually have lower costs. The price of iron materials is relatively stable, and the processing technology is mature, making the production cost of iron cabinet relatively low. In the market, the price of iron cabinet is usually more affordable.

For some users with limited budgets, iron cabinet are a cost-effective choice. However, compared with aluminum cabinet, iron cabinet may not have a price advantage because aluminum cabinet have higher value in terms of lightweight and heat dissipation performance.

2. Introduction to the aluminum LED display cabinet

In the manufacturing process of aluminum LED display cabinets, die-casting technology is mostly used. The die-casting process is an efficient metal forming method, especially suitable for processing metal materials such as aluminum alloys.

Aluminum LED display cabinets have significant advantages in terms of being lightweight. Compared with the iron cabinet, the aluminum cabinet uses lighter materials, thus greatly reducing the overall weight. 

This makes the aluminum cabinet more convenient during transportation and installation, reducing the investment in manpower and material resources.

At the same time, lightweight also means that the cabinet has lower load-bearing requirements for the basic structure, thereby reducing installation costs and risks.

In terms of portability, the advantages of aluminum cabinets are particularly prominent and are suitable for occasions that require frequent movement or rapid deployment, such as temporary exhibitions, rental activities, etc.

The aluminum cabinet exhibits excellent corrosion resistance in the natural environment. Aluminum itself has good anti-corrosion properties, coupled with modern surface treatment technologies, such as anodizing, electrophoretic coating, etc., and the aluminum cabinet can maintain stable performance in harsh environments such as humid and rainy environments.

This corrosion resistance not only extends the life of the cabinet but also reduces repair and replacement costs due to corrosion. Therefore, aluminum cabinets have obvious advantages in applications in corrosion-prone areas such as outdoor environments and coastal areas.

The good heat dissipation performance of the aluminum cabinet is crucial to the stability of the LED display. The LED display screen will generate a certain amount of heat during its working process. If the heat cannot be dissipated in time, the temperature of the display screen will rise, thereby affecting its performance and lifespan. 

The aluminum cabinet uses aluminum material with good thermal conductivity, which can effectively conduct the heat generated by the display to the surface of the cabinet and dissipate the heat into the air through natural convection or heat dissipation equipment such as fans. This good heat dissipation performance ensures that the LED display screen can maintain stable performance under long-term, high-load operation and reduces the failure rate caused by overheating.

In practical applications, the heat dissipation performance of aluminum cabinets is of great significance in improving the reliability and extending the service life of LED displays.

3. Comparison of iron and aluminum LED display cabinet

1). Performance comparison

  • Strength and stability: 

Due to its strong characteristics, the iron cabinet has excellent performance in strength and stability and can withstand greater pressure and impact. The aluminum cabinet is manufactured through a die-casting process, which also has excellent strength and stability, especially while maintaining sufficient structural strength while being lightweight.

  • Corrosion resistance:

In terms of corrosion resistance, the aluminum cabinet shows good weather resistance and corrosion resistance due to the corrosion resistance of the material itself and the improved surface quality brought by the die-casting process. Although the iron cabinet also has a certain degree of corrosion resistance, it is prone to corrosion and other problems when exposed to harsh environments for a long time.

  • Heat dissipation performance:

The aluminum cabinet is outstanding in heat dissipation with its good thermal conductivity, which can effectively dissipate the heat generated by the LED display and ensure the stable operation of the display. The heat dissipation performance of the iron cabinet is relatively poor, which may cause the display temperature to be too high and affect the service life.

2). Cost vs Price Comparison

  • Raw material cost: 

The cost of iron materials is relatively low, making the raw material cost of iron cabinets also low. Although the cost of aluminum materials is higher, the die-casting process can optimize the use of materials and reduce production costs.

  • Production and processing costs: 

The production and processing technology of iron cabinets is relatively mature, and the cost is low. The aluminum cabinet is manufactured using a die-casting process, which requires a high level of technology and equipment investment, so the production and processing costs are relatively high.

  • Market price: 

In the market, the price of iron cabinets is usually more affordable, while aluminum cabinets are more expensive due to their excellent performance and workmanship. However, with the advancement of technology and intensified market competition, the price of aluminum cabinets is gradually decreasing.

3). Maintenance and maintenance comparison

  • Maintenance requirements:

Iron cabinets require high maintenance investment in anti-rust and anti-corrosion treatment, such as regular application of anti-rust paint, cleaning of rust, etc. The aluminum cabinet has relatively low maintenance requirements due to its excellent corrosion resistance.

  • Maintenance cost: 

During long-term use, the maintenance cost of the iron cabinet may increase due to corrosion and other problems. The aluminum cabinet has relatively low maintenance costs due to its better stability and durability.

4. When purchasing an LED display, how do you choose between aluminum and iron?

When purchasing an LED display, choosing an aluminum or iron cabinet mainly depends on your specific needs, budget, and usage environment. Here are some suggestions for your consideration:

1). Usage environment and requirements:

  • Outdoor environment:

If the LED display will be installed outdoors and needs to withstand the test of wind, rain, sun, and other natural environments, then an aluminum cabinet may be more suitable. The aluminum cabinet has excellent corrosion resistance and heat dissipation performance, and can better adapt to the outdoor environment.

  • Indoor environment: 

For LED displays used indoors, although both materials can meet the needs, if you are pursuing higher aesthetics and lightweight design, an aluminum cabinet may be more suitable.

  • Special requirements:

If your application scenario has strict requirements on the weight of the display (such as frequent movement or installation at high altitudes), then the lightweight characteristics of the aluminum cabinet will be an obvious advantage.

2). Budget:

  • Cost considerations: 

Iron cabinets usually have lower raw material costs and production and processing costs, so the market price is also relatively low. If you’re on a budget, an iron cabinet may be a more economical option.

  • Long-term benefits: 

Although the initial investment of an aluminum cabinet may be higher, its excellent corrosion resistance and heat dissipation properties can reduce long-term maintenance and replacement costs. Therefore, in terms of long-term benefits, aluminum cabinets may be more advantageous.

3). Maintenance:

  • Maintenance requirements:

Iron cabinets require higher maintenance investment in anti-rust and anti-corrosion treatment, while aluminum cabinets require relatively low investment. If you want to reduce subsequent maintenance and upkeep costs, aluminum cabinets may be a better choice.

  • Maintenance cost: 

During long-term use, the maintenance cost of the iron cabinet may increase due to corrosion and other problems. The aluminum cabinet has relatively low maintenance costs due to its better stability and durability.

4). Other factors:

  • Brand and quality:

When choosing an LED display, in addition to the cabinet material, you must also consider other factors such as brand, technology, and service. Choosing a well-known brand and a high-quality service provider can ensure that you receive high-quality products and perfect after-sales service.

  • Customized requirements: 

If you have special customized requirements (such as special-shaped cabinets, special colors, etc.), you can choose according to the supplier’s capabilities.

To sum up, when purchasing an LED display, choosing an aluminum or iron cabinet requires careful consideration based on specific needs, budget, and usage environment. 

If you have high requirements for the performance, stability, and durability of the display and your budget allows, an aluminum cabinet may be a better choice.


Finally, whether we choose an iron or aluminum cabinet, we should pay attention to the quality and stability of the product to ensure that the LED display can run stably for a long time and provide users with a high-quality visual experience.

If you want to know more about LED displays, please get in touch with us.

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