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DC51D+ZM Solar Racking System for Ground Pole Mount
Our DC51D+ZM (Zinc-Aluminum-Magnesium coated) solar ground pole mounting bracket represents the next generation of PV structural engineering. Specially designed for uneven terrains, hillsides, and large-scale utility projects, the single-pole design minimizes land impact and excavation costs.
By utilizing premium ZM steel, this racking system provides self-healing cut-edge protection and corrosion resistance that is 5 to 10 times higher than traditional galvanized steel. It is the ultimate cost-effective, zero-maintenance solution for solar farms located in high-salinity, humid, or harsh agricultural environments.
Superior Corrosion Resistance
ZM coating forms a tight protective layer over time, outperforming traditional HDG (Hot-Dipped Galvanized) steel in chemical and saline environments.
Cut-Edge Self-Healing
When the steel is cut or scratched during installation, the magnesium in the coating flows to protect the exposed edge, preventing rust from starting at the cut points.
Flexible Terrain Adaptation
The single-pole structure allows for easy height and angle adjustments, making it perfect for slopes or uneven ground without massive land leveling.
Technical Specifications
| Parameter | Details |
| Product Name | DC51D+ZM Solar Ground Pole Mounting System |
| Material / Grade | DC51D+ZM (Zinc-Aluminum-Magnesium Steel) |
| Coating Composition | Zinc, Aluminum, Magnesium (Excellent self-healing capability) |
| Mounting Type | Single Pole / Monopile Ground Mount |
| Tilt Angle | 10°- 45° (Adjustable based on project requirements) |
| Wind / Snow Load | Wind load up to 60 m/s / Snow load up to 1.5 kN/m² |
| Applicable Terrain | Flat ground, hillsides, slopes, agricultural fields, and deserts |
Mechanical Properties
| Grade | Yield Strength(MPa) | Tensile Strength(MPa) |
| DC51D+ZM | – | 270～500 |
| DC52D+ZM | 140～300 | 270～420 |
| DC53D+ZM | 140～220 | 270～350 |
| S250GD+ZM | 250 | 330 |
| S280GD+ZM | 280 | 360 |
| S320GD+ZM | 320 | 390 |
| S350GD+ZM | 350 | 420 |
| S390GD+ZM | 390～580 | 460 |
| S420GD+ZM | 420～610 | 480 |
| S450GD+ZM | 450～640 | 510 |
| S550GD+ZM | 550 | 560 |
| HC260LAD+ZM | 260～330 | 350～430 |
| HC340LAD+ZM | 340～420 | 410～510 |
| HC220YD+ZM | 220～280 | 340～420 |
| HCT590X +ZM | 330～430 | 590 |
Elongation After Breaking (A80mm,%, ≥)
| 0.4～0.5 | ＞0.5～0.7 | ＞0.7 |
| 18 | 20 | 22 |
| 22 | 24 | 26 |
| 30 | 32 | 32 |
| 15 | 17 | 19 |
| 14 | 16 | 18 |
| 13 | 15 | 17 |
| 12 | 14 | 16 |
| 12 | 14 | 16 |
| 11 | 13 | 15 |
| 10 | 12 | 14 |
| 22 | 24 | 26 |
| 17 | 19 | 21 |
| 28 | 30 | 32 |
| 16 | 18 | 20 |
Quality Control & Testing
Our manufacturing processes and product performance are fully validated by world-leading testing institutions.
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SGS Certified Quality: Our factory and products are audited and certified by SGS, ensuring compliance with international trade and safety standards.
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Rigorous Test Reports Available: Our structures have successfully passed authoritative laboratory tests, including:
1. Salt Spray Testing: Proving excellent anti-corrosion performance under simulated high-salinity and coastal environments.
2. Mechanical Load Testing: Verifying tensile strength, yield strength, and wind/snow load capacities under extreme pressure.
📑 Need Technical Proof for Your Project Bidding?
Real Project Cases
This project demonstrates the application of DC51D+ZM (Zn-Al-Mg coated steel coil) in a rooftop solar photovoltaic mounting system. The system was installed on a commercial building rooftop with limited load-bearing capacity and high corrosion exposure requirements.
To ensure long-term stability and corrosion resistance, the structural components were manufactured using DC51D+ZM steel coil, which was processed into customized cold-formed profiles for solar mounting applications.
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Material Specification
| Item | Specification |
|---|---|
| Base Material | DC51D+ZM Steel Coil |
| Coating Type | Zinc-Aluminum-Magnesium (Zn-Al-Mg) |
| Coating Grade | ZM120 / ZM275 / ZM310 (optional based on environment) |
| Thickness | 1.5mm – 2.5mm |
| Processing Type | Roll forming + punching + cutting |
| Surface Finish | Self-healing anti-corrosion layer |
Processing Capacity
1. High-Speed Automated Punching
Equipped with advanced multi-station CNC automatic punching lines, we achieve high-speed, high-precision perforation on thick steel rails and C-channels.
2. Heavy-Duty CNC Bending & Forming
Our heavy-duty roll forming machines and CNC bending equipment can seamlessly process high-strength steel (including DC51D+ZM and Q345B) up to 4.0mm in thickness.
3.Robotic & Certified Welding
For specialized components, connectors, and pole bases, we utilize a combination of automated robotic welding arms and AWS-certified manual welders.
4. Tailored OEM/ODM Customization
Beyond standard cutting, punching, and bending, we offer full-service metal fabrication, including laser cutting, tapping, and custom assembly packaging.
🛠️ Want to See Our Production Lines in Action? We believe in transparency. Contact our sales team today to get a Live Factory Video Tour or request a fast, custom-manufactured prototype for your evaluation!
📩 [Inquire Now & Get a Custom Fabrication Quote Within 2 Hours]
Packaging and shipping
Customer visit
Frequently Asked Questions (FAQ)
Q1: What makes DC51D+ZM (Zinc-Aluminum-Magnesium) better than traditional Hot-Dipped Galvanized (HDG) steel?
A: ZAM coating offers 5 to 10 times higher corrosion resistance than traditional HDG with a much thinner coating layer. The addition of aluminum and magnesium creates a dense, tight protective barrier that resists chemicals, ammonia, and high-salinity environments, making it ideal for coastal, agricultural, and desert solar farms.
Q2: What is the "self-healing" feature of Zinc-Aluminum-Magnesium steel brackets?
A: When ZAM steel is cut, scratched, or drilled during production or installation, the exposed raw steel edge naturally reacts with the surrounding coating. A magnesium-rich protective film flows over the cut edge to automatically seal and heal the exposed metal, preventing rust from starting at the cut points.
Q3: Does the ZAM coating scratch easily during installation or transport?
A: No. ZAM steel has a significantly higher surface hardness than standard hot-dipped galvanized steel. This makes our brackets highly resistant to scratching, scraping, and mechanical wear during shipping and heavy-duty field installation, preserving the structural integrity of your racking system.
Q4: Can your ZAM pole ground mounting systems be customized for specific terrains?
A: Yes, absolutely. Our single-pole ground brackets are engineered for flexibility. We customize the steel thickness, pile depth, and tilt angle (10°- 45°) based on your local soil reports, topography, and wind/snow loads to ensure maximum stability on slopes, hillsides, or flat terrain.
Q5: Is ZAM steel more cost-effective for large-scale utility solar projects?
A: Yes, it offers a lower Total Cost of Ownership (TCO). While the raw material performance is premium, ZAM components are lighter, require less maintenance over their 25+ year lifespan, and do not need on-site touch-up painting for cut edges. This reduces both upfront logistics/labor costs and long-term O&M expenses.
Q6: What certifications and testing reports do you provide for your ZAM products?
A: Every batch of our DC51D+ZM brackets comes with a Mill Test Certificate (MTC). Additionally, our products are backed by third-party SGS certifications, ISO9001 quality management standards, and comprehensive laboratory test reports, including accelerated salt spray testing and mechanical load analysis.
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