With the promotion of renewable energy in the world, solar photovoltaic (PV) systems has become a mainstream choice of residential and commercial energy solutions. Among the key components that determine the efficiency, safety and life of photovoltaic system, the solar support plays an important role. Specifically, the high-quality aluminum solar panel mounting brackets is widely recognized for its excellent performance and adaptability. However, why do you give priority to aluminum installation system, rather than other materials? And how to choose a reliable installation system manufacturer to ensure the success of your photovoltaic project? This article will answer these questions in detail, providing you with authoritative data, professional definitions, practical installation guides and basic frequently asked questions.
A solar bracket is a special structural component, which is used for placing, installing and fix solar panels in a solar photovoltaic system. It is the “backbone” of photovoltaic system, bearing the weight of solar panels and resisting the pressure of external environment such as wind, snow and earthquake. High-quality aluminum solar panel mounting brackets, as its name implies, is an installation systems made of high-grade aluminum alloy, which is different from brackets made of carbon steel or stainless steel.
According to the definition in the industry standard JG/t 490-2016 “General technical requirements for solar photovoltaic system brackets”, high-quality aluminum solar panel mounting brackets must meet strict standards in terms of material composition, structural design, corrosion resistance and bearing capacity. Unlike ordinary aluminium brackets, high quality ones undergo sophisticated processing techniques such as anodizing on the surface, which significantly enhances their durability and weather resistance. A professional installation system manufacturer will strictly follow international standards such as ISO 9001: 2015 during the production process, so as to ensure the consistency and reliability of product.
Compared with traditional carbon steel and stainless steel brackets, the high-quality aluminum solar panel mounting brackets has multiple unique advantages and is the first choice for various photovoltaic projects.
The density of aluminum alloy is 2.7 kg/decimeter, which is about 1/3 (7.9 kg/decimeter) of steel. This lightweight feature significantly reduces the mounting system‘s overall weight, minimizing load on installation surfaces like roofs—critical for buildings with limited load-bearing capacity. Despite its light weight, high-quality aluminum alloy provides excellent mechanical properties: professionally designed brackets can bear the weight of solar panel, and resist wind load as high as 2.5 kPa and snow load as high as 1.5 kPa, meeting global regional requirements. The Market Analysis of global solar Photovoltaic Installation System from 2024 to 2030 by S&P Global Platts confirms that compared with traditional steel, high-strength aluminum reduces the weight of solar bracket by 40%, thus improving the stability and power generation efficiency of photovoltaic system by 8%-12%. Full report: https://www.spglobal.com/platts/en/market-insights/energy-transition/solar-energy/pv-mounting-system-market.
Corrosion is the main threat to the life of solar stent. High-quality aluminum bracket solves this problem by anodic oxidation treatment, forming a compact oxide film of 5-10 microns, which isolates the metal matrix from the environment and prevents oxidation. In contrast, steel brackets needs hot-dip galvanizing (55-80 microns), but it is still easy to corrode in harsh environments (high humidity industrial areas and coastal areas) that need regular maintenance. Tests shows that the high-quality aluminum mounting system has stable performance in outdoor for more than 20 years, which is more durable than ordinary steel supports.
High-quality aluminum solar panel mounting brackets adopts modular design, which can be assembled quickly without on-site welding or drilling. Compared with the traditional bracket, this not only shortens the installation time by 30% -50%, but also reduces the construction difficulty and labor costs. The mounting system is equipped with specially designed components such as mid clamps, end clamps, rail splices, and various fixtures and hooks, which are compatible with most PV panels on the market (such as 60/72-cell modules). A reputable installation system manufacturer will also provide customized solutions according to different installation scenarios to ensure that the brackets can perfectly adapted to glazed tile roofs, color steel tile roofs, metal tile roofs and ground installations.
In the global carbon neutrality, environmental friendliness is key of photovoltaic modules. Aluminum is 100% recyclable, and recycling consumes only 5% of the main energy for production. The high-quality aluminum solar bracket can be completely reused-it can be disassembled for other photovoltaic projects after maintenance, thus reducing waste and costs. IRENA’s Renewable Capacity Statistics 2025 notes global demand for eco-friendly PV brackets grows 12.8% annually, with aluminium brackets leading the market due to alignment with renewable energy trends.
A professional installation system manufacturer will provide detailed product specifications to ensure that customers can choose the most appropriate solar bracket for their projects. The main specifications of the mounting bracket for high quality aluminum solar panel are as follows.
| Specification Item | Parameter Range | Description |
| Material | 6063-T5 aluminium alloy | High strength, good ductility, and excellent corrosion resistance |
| Surface Treatment | Anodizing, 5-10μm | Meets the requirements of GB/T 5237.2-2017 |
| Adjustable Range | 30-50mm (clamping range) | Compatible with most solar panel frame thicknesses |
| Operating Temperature Range | -40~+80℃ | Adaptable to extreme cold and high-temperature environments |
| Wind Load Resistance | ≤2.5kPa | Meets the requirements of GB 50009-2012 |
| Snow Load Resistance | ≤1.5kPa | Suitable for most snowy regions |
| Protection Level | IP65 | Dustproof and waterproof, suitable for outdoor use |
| Service Life | ≥20 years | Under normal outdoor conditions |
Because of its excellent performance and adaptability, high-quality aluminum solar panel mounting brackets is widely used in various photovoltaic projects. The major application scenarios include.
The load-bearing capacity of residential roofs (glazed tile and asphalt tile) is limited. Aluminum solar bracket is light in weight and is an ideal choice for residential photovoltaic projects. Its modular design is easy to install, without damaging the roof, and its excellent corrosion resistance protects the house and photovoltaic system from bad weather.
The roofs of commercial/industrial buildings (factories and warehouses) are very large, which is very suitable for large-scale photovoltaic systems. The high-quality aluminum installation system is customized for ordinary color/metal tile roofs, and is equipped with matching fixing devices. Rapid installation minimizes the impact on business operations.
Ground photovoltaic power stations is built in open areas (deserts, plains and mountainous area) with harsh conditions (strong wind, sandstorms and large temperature differences). High-quality aluminum brackets has excellent wind resistance and temperature adaptability, and its performance is stable. Their modular mounting system facilitates large-scale installation, boosting construction efficiency.
The high-quality aluminum solar supports are also suitable for special scenes, such as coastal areas and high altitude areas. The air in coastal areas have high salt content, which is corrosive to metal parts. The anodic oxidation surface of aluminum support can effectively resist salt spray corrosion. The temperature difference at high altitude is large, and the ultraviolet radiation is strong, so the aluminum stent can maintain its mechanical properties and service life in these environments.
Because of the modular design, the installation of high-quality aluminum solar panel mounting brackets is very simple and efficient. Here are the main installation steps.
1. Installation Preparation: confirm the installation location/spacing according to the drawings, and measure and mark the surface. Prepare tools (impact drills, spirit levels, wrenches) and materials (expansion screws, sealants). Check whether the solar bracket assembly is deformed and the anodic oxide layer is intact.
2. Foundation fixing: For roofs, drill matching holes, inject sealant/waterproof glue, and fix hooks with expansion screws. For ground, dig a pits (0.5-1.5m), lay gravel, and bury foundation bolts/concrete foundations.
3. Track Installation: fix the aluminum track on the hook with bolts, adjust levelness and angle (optimize the slope of flat roof to improve efficiency), and reinforce it with connectors. Make sure that the guide rails are parallel and the spacing is consistent.
4. Installation of the solar panel: fix the solar panels on the track with the middle/end clamps. Adjust panel position for even distribution and firmness, avoiding surface scratches.
5. Post-installation Inspection: check whether the connection of the whole installation system is loose, verify that the roof is waterproof, and test the normal operation of the PV system.
A 1: The main differences are weight, corrosion resistance and difficulty in installation. Aluminum solar bracket has light weight (1/3 of steel), excellent corrosion resistance (no need for regular maintenance) and modular design, which is convenient for installation. Steel brackets is heavy, with poor corrosion resistance (hot dip galvanizing and regular maintenance are required), and it is difficult to install. As far as cost is concerned, the initial cost of aluminum bracket is higher, but the long-term maintenance costs is lower.
A 2: When choosing a mounting system manufacturer, you should pay attention to the following points: 1) Whether the manufacturer has relevant certifications (such as ISO 9001: 2015); 2) whether the product conforms to international and national standards (such as JG/t 490-2016 and IEC 61730); 3) whether the manufacturer can provide detailed product descriptions and quality inspection reports; 4) does the manufacturer has rich experience in photovoltaic projects and good after-sales service; 5) whether the product has been tested and validated under different environmental conditions.
A 3: That’s right. The mounting bracket of high-quality aluminum solar panel adopts anodic oxidation surface treatment, which can effectively resist salt fog corrosion. The protection grade has reached IP 65, which is dustproof and waterproof. In addition, some manufacturers of installation systems have provided additional anti-corrosion treatment for coastal areas, further enhancing the corrosion resistance of the support. Therefore, the aluminum brackets is completely suitable for coastal areas.
A 4: Under normal outdoor conditions, the service life of high-quality aluminum solar bracket is over 20 years. This is due to the excellent corrosion resistance and mechanical properties of aluminum alloy and the anodizing surface treatment. If the support is properly maintained, the service life can be even longer.
A 5: Compared with steel brackets, the aluminum mounting system needs very little maintenance. In general, it is only necessary to check the connection parts regularly (such as once a year) to ensure that there is no looseness. If the stent is used in harsh environments such as coastal areas or deserts, the frequency of inspection can be appropriately increased. There is no need to carry out regular anti-corrosion treatment, which greatly reduces the maintenance cost and workload.
High-quality aluminum solar panel mounting brackets is an indispensable part of modern photovoltaic systems, which has the unique advantages of light weight, high strength, corrosion resistance, convenient installation, environmental protection and so on. They are widely used in residential, commercial, industrial and ground photovoltaic projects and can adapt to all kinds of harsh environments. When choosing a solar bracket, it is very important to choose a reliable installation system manufacturer to ensure that the product meet international and national standards, and has excellent quality and performance.
If you are planning a photovoltaic project, a high-quality aluminum installation system must be a wise investment. It can not only improve the efficiency and safety of photovoltaic system, but also reduce the cost of long-term operation and maintenance. Choose an appropriate aluminum solar bracket to create a more efficient, safer and more environmentally friendly energy solution for your project.
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