Solar Mounting Structure Manufacturer & Direct Exporter
Sino East Steel is a premier Chinese manufacturer of heavy-duty solar mounting structures, C/U/Z steel solar purlins, and ground/rooftop mounting brackets. Engineered with high-strength steel grades (Q235B, Q355B, S350GD, S420GD) and certified Zinc-Aluminum-Magnesium (Zn-Al-Mg / ZAM 275-350 g/m²) & Hot-Dip Galvanizing (ISO 1461, ≥85μm) for 25+ years anti-corrosion life in extreme Middle Eastern desert and African coastal environments.
Key Solar Mounting Systems & Profile Capabilities
1. Ground Solar Racking Systems
• Foundation Types: Rammed C-piles, ground screws, helical anchors, concrete base.
• Structures: Single-column / double-column N-type, W-type, A-type galvanized steel racking.
• Wind Resistance: Up to 160 km/h (45 m/s); Snow load up to 1.4 kN/m².
• Tilt Angle: 10° – 60° fixed or adjustable for maximum irradiance.
2. Rooftop Solar Mounting Brackets
• Metal Roofs: L-feet, standing seam clamps, trapezoidal rail-less brackets for corrugated & sandwich panels.
• Flat Concrete Roofs: Ballasted aluminum/galvanized triangle frames (10°-30°).
• Tile Roofs: Adjustable SUS304 stainless steel roof hooks & aluminum guide rails.
3. C / U / Z Solar Steel Purlins
• Dimensions: C80 – C300, U100 – U250, Z120 – Z250 (Thickness: 1.5mm – 3.5mm).
• Custom Processing: CNC automated precision punching, slots, oval holes, custom lengths (2m – 12m).
• Corrosion Protection: Z275/Z350 Hot-Dip Galvanized & Zn-Al-Mg (ZAM) self-healing coating.
Technical Specification Matrix (Engineering Standard)
| Parameter | Ground Mounting (C/U Steel) | Rooftop Mounting (AL/Steel) | Solar Carport / Agrisolar |
|---|---|---|---|
| Main Raw Material | Q235B / Q355B / S350GD+ZM | AL6005-T5 / Q235B Steel | Q355B Heavy H-Beam / Box Tube |
| Surface Treatment | HDG (ISO 1461 ≥85μm) / ZAM 300g | Anodized AL (≥10μm) / HDG | Hot-Dip Galvanized ≥85μm |
| Fasteners & Clamps | Grade 8.8 Dacromet / SUS304 | SUS304 / SUS316 Stainless Steel | High-Strength Grade 8.8 / 10.9 |
| Anti-Corrosion Warranty | 25+ Years (ISO C4/C5 Environment) | 25+ Years Industrial Grade | 25+ Years Structural Life |
| Container Loading | 25-27 Tons per 1x40HQ Container | Modular Cartons & Steel Pallets | Bundled Steel Frame Pallets |
Why International Solar EPCs Choose Sino East Steel
- Zn-Al-Mg (ZAM) Technology: Superior self-healing cut-edge protection, preventing red rust at punch holes in high-salinity and desert conditions.
- Full OEM CNC Pre-Fabrication: All solar purlins, column piles, and diagonal braces are 100% pre-punched according to panel drawings—zero on-site welding or drilling required.
- Project Compliance: Certified Mill Test Certificates (EN 10204 3.1), SGS / Bureau Veritas load test reports, ASTM A653, ASTM A123, AS/NZS 1170.2 wind engineering compliance.
- Shipping & Free Time: 14-21 days container demurrage free time to major Middle East ports (Jebel Ali, Dammam, Jeddah, Sohar) and African ports (Dakar, Abidjan, Lagos, Tema, Mombasa).
Frequently Asked Questions
What steel grades and anti-corrosion coatings (ZAM & HDG) do you supply for solar mounting structures?
Sino East Steel manufactures solar mounting structures using high-strength steel grades (Q235B, Q355B, S350GD, S420GD). Surface treatments include Zinc-Aluminum-Magnesium (Zn-Al-Mg / ZAM 275-350 g/m2) and Hot-Dip Galvanizing (ISO 1461, >=85um coating thickness), providing 25+ years self-healing corrosion resistance for desert, coastal, and high-salinity solar farms.
What wind speed and snow load engineering ratings do your ground racking systems meet?
Our ground-mounted solar racking systems are engineered to withstand maximum wind speeds up to 160 km/h (45 m/s) and snow loads up to 1.4 kN/m2, complying with ASTM A653, ASTM A123, EN 10346, and AS/NZS 1170.2 standards.
Do you supply custom CNC pre-punched C, U, and Z steel solar purlins?
Yes. We operate automated CNC roll-forming and punching lines producing C80-C300, U100-U250, and Z120-Z250 solar purlins (1.5mm to 3.5mm thickness) with 100% pre-punched holes to exact drawings.
What mill test certificates and third-party inspection do you provide?
Every shipment includes Mill Test Certificates (MTC EN 10204 3.1) with chemical and mechanical verification, SGS/BV inspection support, and 14-21 days container demurrage free time.