Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of solar panel frame in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Solar panel frames
Our solar panel frames (also called PV module frames, photovoltaic frames, or solar panel mounting frames) are high-strength, durable, and corrosion-resistant structures designed to securely hold solar panels in residential, commercial, and utility-scale solar installations.
We offer frames in aluminum alloys (6061/6063), hot-dip galvanized steel, and stainless steel (304/316). All frames are manufactured according to ASTM, EN, and JIS standards, ensuring dimensional accuracy, long-term durability, and compatibility with all major PV modules.
These solar panel frames provide stable mounting, easy installation, and long-term corrosion resistance, making them ideal for roof-mounted, ground-mounted, or adjustable solar installations.
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Solar photovoltaic bracket galvanized pipe is a high-strength, corrosion-resistant structural material specially designed for solar panel support system, using high-quality steel treated by hot-dip galvanizing process, with excellent rust resistance, ultraviolet resistance and long-term outdoor durability, widely used in ground power stations, rooftop photovoltaics, carports and other photovoltaic projects.
Core Benefits
Excellent corrosion protection
►The hot-dip galvanized layer (zinc layer thickness ≥ 80μm) is certified by ASTM A123/A123M standard to ensure a service life of more than 25 years in harsh environments such as humidity and salt spray.
►The galvanized layer is firmly bonded to the steel base to avoid the problem of coating breakage during transportation and installation
High strength and light weight
►It is made of high-quality carbon steel such as Q235B/Q355B, with a tensile strength of ≥ 375MPa, a stable structure, and can withstand extreme climates such as strong winds and snow loads.
►Optimized cross-section design (square tube/round tube/C-shaped steel, etc.) to reduce weight while maintaining rigidity, reducing transportation and installation costs.
Precise size and compatibility
►The standard length is 6 meters (customizable), and the tolerance is controlled at ±0.5mm, which perfectly matches the mounting hole spacing of mainstream photovoltaic modules (such as crystalline silicon and thin film).
►Provide customized services such as pre-drilling, threading, etc., to simplify the on-site assembly process.
Environmental protection and sustainability
►The galvanizing process is chromium-free and environmentally friendly, 100% recyclable, and meets the requirements of RoHS and green building certification.
Products Specifications
| Material | Profile Type | Thickness | Dimensions | Load Capacity | Corrosion Resistance | Features & Applications |
|---|---|---|---|---|---|---|
| Aluminum 6061 / 6063 | Extruded Frame | 2–5 mm | Custom, e.g., 35×35 mm, 40×40 mm | 150–300 kg | Very Good | Lightweight, easy installation, ideal for roof-mounted PV modules |
| Galvanized Steel (HDG) | Rectangular / Square | 2–5 mm | Custom | 200–400 kg | Excellent | Heavy-duty, cost-effective, suitable for commercial and utility PV installations |
| Stainless Steel 304 / 316 | Rectangular / Square | 2–6 mm | Custom | 250–500 kg | Excellent | Premium durability, offshore or coastal solar panels, high-load applications |
| Item | Specifications |
|---|---|
| Material | Q235B/Q355B carbon steel (stainless steel optional) |
| Galvanizing Process | Hot-dip galvanizing (zinc coating ≥80μm) |
| Common Sizes | Square tube: 40×40×2mm, 50×50×2.5mm, etc. |
| Round tube: Φ32×2mm, Φ48×3mm, etc. | |
| Surface Treatment | Galvanized (powder coating optional) |
| Tensile Strength | ≥375MPa |
| Compliance Standards | ASTM A123, ISO 1461, GB/T 3091 |
Solar Mounting Materials Comparison Table
| Feature / Property | Aluminum (6061/6063) | Galvanized Steel (HDG) | Stainless Steel (304/316) |
|---|---|---|---|
| Density | 2.70 g/cm³ | 7.85 g/cm³ | 7.93 g/cm³ |
| Tensile Strength | 185–310 MPa | 370–550 MPa | 520–750 MPa |
| Yield Strength | 145–276 MPa | 230–350 MPa | 210–310 MPa |
| Corrosion Resistance | Very Good | Excellent (HDG) | Excellent (Premium) |
| Weight | Lightweight | Medium–Heavy | Heavy |
| Ease of Installation | Very Easy | Moderate | Moderate |
| Cost | Medium | Low–Medium | High |
| Load Capacity | 150–400 kg | 150–500 kg | 200–500 kg |
| Durability / Lifespan | 15–25 years | 20–30 years | 25–40 years |
| Applications | Roof-mounted, adjustable-angle PV arrays, lightweight structures | Commercial and utility-scale PV farms, roof-mounted arrays | Offshore, coastal, harsh environment PV projects, high-load installations |
| Maintenance | Low | Moderate (may need inspection for surface corrosion over time) | Very Low (premium corrosion resistance) |
| Typical Use Case | Residential and small commercial arrays | Industrial, commercial, and large-scale solar farms | Offshore solar arrays, high-humidity/coastal environments |
we are here for you
Our team provides customized PV frame solutions in aluminum, galvanized steel, or stainless steel. Whether you need lightweight roof-mounted frames, heavy-duty commercial frames, or offshore-grade frames, we deliver tailored solutions for your project.
B2B FAQ – Solar Panel Frames
1.Which materials are available for solar panel frames?
Aluminum (6061/6063), galvanized steel (HDG), stainless steel (304/316).
2.What is the main difference between materials?
Aluminum: lightweight, easy installation
Galvanized steel: cost-effective, heavy-duty
Stainless steel: premium durability, ideal for offshore/coastal use
3.Are the frames corrosion-resistant?
Yes, all materials are corrosion-resistant; stainless steel provides the longest lifespan.
4.Can these frames be used for adjustable-angle installations?
Yes, compatible with adjustable or fixed solar panel systems.
5.What load capacities do the frames support?
150–500 kg depending on material, thickness, and size.
6.Are these frames compatible with all PV modules?
Yes, suitable for mono- and polycrystalline modules.
7.Can I order custom sizes or finishes?
Yes, all materials support custom dimensions, wall thicknesses, and finishes.
8.Do you provide quality certification?
Yes, MTC / EN10204 3.1 certificates are available; third-party testing optional.
9.Is installation simple for residential projects?
Yes, modular design and pre-drilled profiles allow quick and safe assembly.
10.Do you accept small and bulk orders?
Yes, we support both single-project orders and large solar farm projects.
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