Recently, a client from Thailand asked an interesting question during our discussion about solar mounting systems “How thick should the galvanization and pipe wall of a ground screw be to ensure a long service life?” This is actually a very important topic for solar ground mounting projects, especially in regions with different soil conditions and climates. Here are a few key factors that determine the durability of solar ground screws. 1. Hot-Dip Galvanization Thickness For solar mounting ground screws, hot-dip galvanization is essential to prevent corrosion. Typical standards in the industry: ≥ 80 μm – Standard protection for most normal environments ≥ 100 μm – Recommended for coastal or humid areas ≥ 120 μm – Suitable for highly corrosive environments In general, 80–100 μm galvanization can provide 25–40 years (or even longer) of corrosion protection under normal soil conditions. However, the actual lifespan also depends heavily on soil chemistry and drainage conditions. 2. Pipe Wall Thickness of the Ground Screw The wall thickness of the steel pipe affects both structural strength and long-term durability. Common specifications used in solar projects is diameter typical wall Thickness60 mm2.5–3.5 mm76 mm3.0–4.0 mm89 mm3.5–4.5 mm For large solar plants or areas with high wind loads, thicker walls are usually recommended. 3. Soil Conditions Matter The soil environment can significantly influence corrosion speed. Normal soil (neutral pH) ： Standard galvanization usually works well. Clay or wet soil： Higher galvanization thickness recommended. Salty or coastal soil ： Thicker galvanization + larger safety factor. Rocky soil : Focus more on structural strength than corrosion. 4. Installation and Drainage Even a well-designed ground screw can fail prematurely if installation conditions are poor. Key recommendations is ● Avoid long-term water accumulation. ● Ensure proper drainage around the foundation. ● Select the correct screw length based on soil conditions. ● Follow installation torque recommendations. 5. Why Ground Screws Are Widely Used in Solar Projects Compared with traditional concrete foundations, ground screws offer several advantages: ● Faster installation. ● No concrete curing time. ● Environmentally friendly. ● Easy removal and recycling. ● Suitable for most soil types. This is why they are increasingly popular in utility-scale solar farms and commercial PV installations. The service life of a solar ground screw is not determined by a single factor. It depends on galvanization thickness, pipe wall thickness, soil conditions, and proper installation.In our recent solar projects, we typically recommend 80–100μm hot-dip galvanization for ground screws, depending on the soil environment and project lifetime requirements.Proper material selection and corrosion protection are essential to ensure that the foundation can match the 25+ year lifespan of a solar power plant. Feel Free to contact us if you want to have your suitable ground screw. ...

Corigy is an outstanding manufacturer of photovoltaic mounting structures.It boasts an elite engineering and design team. From the selection of solar mounting solutions to detailed drawing design, we fully take into account factors such as cost efficiency, structural safety, and ease of installation of solar mounting for our customers. While ensuring the structural safety of the mounting system, Corigy strives to provide customers with the most cost-effective solar mounting solutions. Even more commendably, our engineer usually gives some professional suggestions on safety of the solar mounting structures, these suggestions are so valuable and indispensable for a project. We have a successful case of hot-dop galvanizing solar mounting where we helped a customer to reduce the mounting costs from $90/KW to $45/KW. In the customer’s original design, many rectangular tubes were used for diagonal bracings and beams. Our engineers simplified the design by adopting Cee steel for beams and diagonal bracings, significantly cutting costs. As the labor cost in the country is very expensive, so we suggested customer to use foundation of piles ramming into the ground. The type of piles in this project are U steel instead of normal Cee steel. This is because the maximum thickness of Cee steel is not more than 3 mm. But 3 mm thickness Cee steel can not withstand the impacting force generated from large pile driver machine, so we used U shape steel with thickness from 6-8 mm. We suggested customer to use Lock Nut for the bolts in one special part, as there is a small gap between two U shape steel, so there is no friction here. The screws in this part are prone to loosening and falling off under the gravity of the panels and wind speed over time. If the screws  get loosening or falling off, the solar mounting structure won't be stable. So our engineer suggested to use the lock nut. This kind of nut is embedded with a nylon ring; when the bolt is screwed in, the nylon deforms under compression, gripping the threads to provide constant friction. We are very happy that customer accepted all of our suggestions. Order is under processing now. Except this case , we also provide customers with pre-assembled components to improve on-site installation efficiency and lower labor costs. Our extensive product range: We manufacture mounting systems for ground-mounted, rooftop, and carport solar installations. We do both aluminum and hot-dip galvanized steel ground mounting, metal sheet roof and flat roof. Our carport design Corigy offers two designs for solar carports: the Y-type carport and the single-column carport. Both types combine practicality with an attractive appearance. Corigy designs the carport structure in accordance with the customer’s requirements, including maximum wind speed, snow load, and panel dimensions. The primary material is hot-dip galvanized Q235B steel. Each parking space generally has a width of 3 meters and a depth of 5 meters. We can also de...

Why Choose Aluminum Solar Mounts for PV Projects? Solar mounting systems are key structures that support photovoltaic modules, and their materials directly affect system safety, lifespan, and economy. Among various materials (hot-dip galvanized steel, stainless steel, ZAM coated steel, composite materials), aluminum has become the mainstream choice for distributed roof projects due to its excellent comprehensive performance, especially suitable for scenarios with limited load-bearing capacity, humid/salt spray environments, and requiring quick installation. Let's analyze the specific advantages of aluminum solution: *Lightweight: Aluminum has a density of only 2.7 kg/dm³ (steel has 7.9 kg/dm³), which is lightweight but has a high strength to weight ratio, reducing roof load pressure. Especially suitable for rooftop distributed photovoltaic projects. *Anti natural corrosion: Aluminum can react with oxygen in the air to form a dense alumina protective layer on the surface, enhancing the corrosion resistance of aluminum profiles. *Balanced voltage: Aluminum profiles have excellent conductivity, which enables them to better conduct weak currents generated in photovoltaic support systems due to various reasons. *Easy to form and process: easy to saw, drill, punch, and fold; It can be molded into any cross-sectional profile through extrusion technology, suitable for different angles, terrains, and roof shapes. *Low temperature resistance: Ordinary steel, especially welding areas, are fragile and brittle in low temperature environments, while aluminum have increased strength at low temperatures. *Environmentally friendly and easy to recycle: Waste aluminum brackets can be recycled for reuse. *Easy installation: The accessories of the aluminum solar brackets are very simple, and the installation is also fast and easy, which can greatly shorten the construction period. *Long service life: The service life of aluminum photovoltaic brackets is about 25 to 30 years. Although the cost of aluminum is higher than that of steel, its full cycle cost (LCC) brought by anti-corrosion treatment free, low operation and maintenance, and long service life is more advantageous. CORIGY has over fifteen years of experience in solar mounting solutions, especially in the design of aluminum mounting, which have been repeatedly praised by customers. CORIGY's professional product design enables the assembly of solar photovoltaic bracket systems with only a small number of accessories, without the need for other drilling or welding, and can be quickly assembled on the construction site, effectively improving installation efficiency and shortening the construction period. CORIGY’s aluminum solar mounts has the characteristics of light weight, beautiful appearance, simple installation, and strong corrosion resistance. CORIGY SOLAR more professional and flexible solar mounting solutions waiting for you here! CONTACT US! Above news from CORIGY SOLAR Sales & Marketing department ...

CORIGY is a professional solar mounting system manufacturer with 15 years of industry experience, adhering to the philosophy of "explaining price briefly rather than explaining quality for a lifetime." The company has established a complete automated production system covering carbon steel, aluminum alloys, and core components, and its products are widely used in numerous large-scale photovoltaic projects worldwide. Core Product System CORIGY offers a full range of installation solutions covering various application scenarios: Ground and Roof Mounts: Including ground-mounted systems suitable for various terrains, as well as specialized mounts for flat roofs, tiled roofs, and metal roofs. Carport Mount Systems: Providing professional solar carport structural design and manufacturing services. Mount Components: Possessing independent automated production lines to produce key small components such as mid clamp and end clamp. Automated Production Lines and Material Processes The company has significant technological advantages in manufacturing processes, ensuring product durability in harsh environments: Material Range: Covering aluminized magnesium-zinc coated carbon steel, hot-dip galvanized steel, and aluminum alloys (such as stainless steel and high-strength aluminum alloys). Production Automation: Equipped with advanced automated production lines for carbon steel and aluminum alloys, as well as specialized automated production equipment for supporting core system components (end clamp, mid clamp). Corrosion Resistance: The company's products, such as hot-dip galvanized U-shaped steel and aluminized magnesium-zinc photovoltaic rails, are renowned for their superior corrosion resistance and robust structural stability. Project Experience: CORIGY's products have been applied to medium to large-scale photovoltaic projects ranging from 240MV to over 810 MV globally, proving their ability to meet complex engineering CORIGY SOLAR more professional and flexible solar mounting solutions waiting for you here! CONTACT US! Above news from CORIGY SOLAR Sales & Marketing department Phone: +0086-592-6883200 E-mail: sales@corigy.com

As the festive lanterns continue to glow and the spirit of the New Year fills the air, we at Corigy Solar are thrilled to announce the official start of our operations for the New Year! We hope you and your loved ones enjoyed a wonderful holiday season filled with joy and prosperity. As we step into this new chapter, we are energized and ready to support your projects with our high-quality solar mounting solutions. At Corigy Solar , we remain committed to driving the global energy transition with reliable and innovative products: Aluminum Alloy Ground Mounting Systems Lightweight, durable, and corrosion-resistant—perfect for large-scale solar farms. Zinc-Aluminum-Magnesium Ground Mounts Superior strength and anti-corrosion performance for long-term reliability in challenging environments. Metal Roof Mounting Systems Engineered for stability and quick installation on iron sheet roofs. Tile Roof Mounting Systems Designed to seamlessly integrate with clay and concrete tile roofs while ensuring safety and aesthetics. We also have mounting structure for balcony, solar fence, and other solar mounting accessories. As we begin this New Year, we extend our warmest wishes to our partners and customers around the world. May this year bring you success, growth, and abundant sunshine! Let’s harness the power of the sun together—welcome to a bright and productive year ahead!

To Our Loyal Customers: A sincere thank you for your continued trust and partnership over the years. Your support has been the driving force behind our commitment to quality and innovation. We look forward to further strengthening our collaboration in the coming year. To Our Future Partners: If you are looking for reliable, high-performance solar mounting solutions, we welcome the opportunity to work with you. Our expertise spans residential, commercial, and utility-scale projects, and we pride ourselves on delivering durable, cost-effective, and easy-to-install photovoltaic mounting systems.