Core Features: Made of 6063-T5 aluminum alloy, lightweight (approximately 2.7g/cm³), corrosion-resistant (surface anodized, salt spray resistance ≥1000 hours), and easy to process (customizable special-shaped structures);

Core Advantages: No complex anti-corrosion treatment required, easy to install (only 2-3 people needed to install a single set of brackets), low load requirement on the roof (load ≤15kg per square meter), suitable for distributed scenarios such as flat roofs and sloped roofs;

Notes: Mechanical strength is slightly lower than that of carbon steel (tensile strength ≥260MPa); not recommended for high-load scenarios in large ground-mounted power plants or areas with strong winds (wind speed ≥30m/s).

Core Features: Made of Q235B carbon steel, hot-dip galvanized surface (zinc layer thickness ≥85μm), high mechanical strength (tensile strength ≥375MPa), and strong load-bearing capacity (a single bracket can bear ≥200kg);

Core Advantages: Cost is only 60%-70% of aluminum alloy brackets, suitable for large-span, high-load scenarios such as large ground-mounted PV power plants and agri-PV complementary power plants, and can withstand pressure from snow thickness ≤50cm;

Notes: Regular inspection of the galvanized layer is required (once every 2-3 years) to prevent rust in humid environments (additional anti-corrosion coating is recommended for coastal areas).

Core Features: Made of 304 or 316 stainless steel, salt spray and acid-alkali resistant (316 material has salt spray resistance ≥2000 hours), no risk of coating peeling;

Core Advantages: Suitable for highly corrosive environments such as coastal tidal flats and areas around chemical plants, with a service life of over 30 years (5-8 years longer than aluminum alloy brackets);

Application Scenarios: Fish-PV complementary power plants and coastal distributed power plants. The disadvantage is high cost (approximately 2.5 times that of carbon steel brackets), so it is not recommended for non-special environments.

Structural Features: Fixed installation angle (adjusted according to latitude; for example, areas at 30°N latitude are usually set to 30°-35°), divided into sloped roof fixed type, flat roof ballasted type, and ground pile type;

Core Advantages: Simple structure (no mechanical transmission components), low failure rate (annual failure rate ≤0.5%), low cost (40%-60% less than tracking type), and easy maintenance;

Application Scenarios: Most distributed power plants and small-to-medium ground-mounted power plants, especially suitable for low-latitude areas (south of 25°N latitude) where the change in sunlight angle is small.

Structural Features: Driven by a motor or hydraulic system, it automatically adjusts with the sun's azimuth angle (divided into single-axis tracking and dual-axis tracking). Single-axis tracking can increase power generation by 15%-20%, and dual-axis tracking by 20%-25%;

Core Advantages: Maximizes solar energy absorption, suitable for high-latitude areas (north of 40°N latitude) and scenarios with abundant sunlight but large changes in sunlight angle;

Notes: High cost, dependent on power supply (daily power consumption is approximately 0.5 kWh per set), regular maintenance of mechanical components is required (inspection of the transmission system every quarter), and it needs to automatically reset to the wind-resistant angle in strong winds (when wind speed ≥18m/s).

Flat Roofs: Choose aluminum alloy ballasted brackets (no drilling required, fixed by counterweights to avoid damaging the roof waterproof layer). The bracket height should be controlled at 0.3-0.5m (for easy roof maintenance), and the angle should be designed according to the local optimal tilt angle (e.g., 32° for Shanghai);

Sloped Roofs (Asphalt Shingles/Color Steel Tiles): Choose aluminum alloy hook-type brackets (hooks are fixed on the roof purlins without penetrating the roof surface). The fitting degree between the brackets and the roof should be ≥90% to avoid increased wind resistance due to excessive gaps between modules and the roof.

Plain Areas: Choose carbon steel pile-type brackets (pile depth 1.2-1.5m, wind resistance ≤25m/s). The bracket spacing is 3-4m (suitable for 440W-550W modules), and it can be equipped with fixed or single-axis tracking systems (tracking type is preferred for high-latitude areas);

Mountainous and Hilly Areas: Choose carbon steel adjustable brackets (tilt angle can be adjusted by ±5° according to terrain), and adopt independent piles (to avoid bracket deformation caused by terrain undulations). Modules are arranged along contour lines (to reduce shadow shielding).

Core Requirements: The bracket height must meet the growth needs of crops (economic crops are 1.5-2m tall, so the bracket height should be ≥2.2m), and the load-bearing capacity must accommodate both modules and the passage of agricultural machinery (a single bracket can bear ≥300kg);

Suitable Solution: Choose carbon steel portal brackets (span 5-8m, convenient for agricultural machinery to pass through). The surface should be treated with enhanced anti-corrosion (hot-dip galvanizing + spray coating double treatment) to avoid corrosion from pesticides and chemical fertilizers.

Environmental Characteristics: High salt spray, long-term humidity (water surface humidity ≥85%), and the bottom of brackets may be temporarily submerged (water level rises by 0.5-1m during flood seasons);

Suitable Solution: Choose 316 stainless steel pile-type brackets (piles go 1.5-2m underwater and are wrapped in concrete for anti-corrosion). The bracket height should be ≥1.8m (to avoid the impact of water surface reflection on module efficiency), and the surface salt frost should be regularly washed with fresh water.

Areas with Strong Winds (e.g., Coastal Areas, Grasslands): Choose carbon steel brackets (wind load resistance ≥0.75kN/m²). Fixed brackets need additional diagonal braces (spacing ≤2m), and tracking brackets need wind-resistant functions;

High Humidity/High Salt Areas (e.g., Coastal Areas, Tidal Flats): For aluminum alloy brackets, choose enhanced anti-corrosion models (anodized layer thickness ≥15μm); carbon steel brackets need double anti-corrosion treatment, or stainless steel brackets can be used directly;

Snowy Areas (e.g., Northeast China, Xinjiang): The load-bearing capacity of brackets should be designed according to the local maximum snow depth (e.g., for Harbin, calculated based on snow depth of 0.6m, load ≥0.5kN/m²) to prevent brackets from being crushed by snow.

Limited Budget, Pursuing Stability: Choose fixed brackets (suitable for most scenarios, with a shorter investment payback period of 1-2 years);

High-Latitude Areas, Large Changes in Sunlight Angle: Choose single-axis tracking brackets (e.g., Northeast China, which can increase power generation by approximately 18%, with an investment payback period 0.5-1 year longer than fixed brackets);

Scarce Sunlight Resources, Pursuing Extreme Efficiency: Choose dual-axis tracking brackets (e.g., cloudy areas such as Sichuan and Guizhou, which can increase power generation by over 22%, but with high cost, suitable for large power plants).

Rooftop Power Plants (No Drilling Allowed): Choose aluminum alloy ballasted brackets (counterweight weight ≥1.2 times the weight of modules + brackets to prevent wind uplift);

Rooftop Power Plants (Drilling Allowed): Choose aluminum alloy hook-type brackets (hooks are embedded in roof purlins to a depth of ≥50mm to ensure firm fixation);

Ground-Mounted Power Plants (Solid Soil): Choose carbon steel pile-type brackets (pile diameter ≥150mm, depth ≥1.2m);

Ground-Mounted Power Plants (Soft Soil Foundation): Choose carbon steel concrete foundation brackets (foundation size ≥600mm×600mm×800mm to enhance stability).

Structural Components: Check the connecting bolts of bracket beams and diagonal braces (for looseness; torque should be maintained at ≥30N·m), and the transmission gears of tracking brackets (for wear; apply lubricating grease once every six months);

Anti-Corrosion Layer: For carbon steel brackets, check the galvanized layer (for peeling and rust; repair rust spots with anti-corrosion paint in a timely manner); for aluminum alloy brackets, check the anodized layer (for scratches to prevent rainwater infiltration);

Foundation Parts: For ground brackets, check if piles are tilted (tilt angle ≤1°); for rooftop brackets, check if counterweights are displaced (to avoid insufficient ballast leading to wind uplift).

Before Rainy Season: Clean up accumulated water at the bottom of brackets (to avoid foundation corrosion caused by long-term immersion), and check the fitting between rooftop brackets and the waterproof layer (for water leakage; repair with waterproof glue in a timely manner);

Before Snowy Season: Reinforce bracket diagonal braces (to increase snow load-bearing capacity), and debug the wind-resistant mode of tracking brackets (to ensure automatic reset when wind speed ≥18m/s);

Before Typhoons/Dust Storms: Check all connecting bolts (retighten to the standard torque), and remove debris around brackets (to avoid debris hitting modules).

Loose Bolts: Tighten them to the standard torque with a torque wrench (torque for aluminum alloy bracket bolts: 25-30N·m; for carbon steel bracket bolts: 30-35N·m). Replace bolts if they are severely loose (choose stainless steel bolts of the same specification);

Damaged Anti-Corrosion Layer: For carbon steel brackets, sand the rust spots until the metal surface is exposed, then apply epoxy zinc-rich primer + topcoat (thickness ≥80μm);

Tracking System Faults: Switch to manual mode immediately (to avoid modules staying at an unfavorable angle), and contact the manufacturer to repair the transmission system (do not disassemble the motor by yourself).