Photovoltaic (PV) Purlin Connector—also known as purlin splices—are essential structural hardware components in PV mounting systems. When the length of a single C-, Z-, U-, or "Ji"-shaped steel purlin is insufficient to span the PV array, these connectors are used to securely join two purlin sections end-to-end. They ensure the assembled purlin remains straight and aligned, effectively distributing wind loads, snow loads, and the weight of the PV modules evenly to the main support columns.
These components are indispensable for ground-mounted PV plants, rooftop PV systems, smart greenhouse PV installations, and "fishery-solar hybrid" power stations. Inferior connectors are prone to loosening, bending, and corrosion during long-term outdoor use, which directly compromises the safety and integrity of the mounting system over its 25-year lifespan; thus, they are critical to the structural stability of the power plant.
✅ One-stop OEM-grade component supply: In-house production of Purlin Connector, C/Z/U/Hat-shaped steel profiles, and Zinc-Aluminum-Magnesium (Zn-Al-Mg) coils; unified anti-corrosion standards (Hot-dip Galvanizing or Zn-Al-Mg) and a comprehensive 25-year warranty for the entire mounting system; eliminates the need for multi-vendor sourcing and avoids compatibility issues regarding material quality or anti-corrosion treatments.
✅ Durable, corrosion-resistant options with dual anti-corrosion processes: Hot-dip galvanized coating thickness ≥65μm; Zn-Al-Mg coating features self-healing capabilities at cut edges and passes 1,000-hour neutral salt spray tests; suitable for long-term use in coastal saline-alkali areas, fishery-solar hybrid projects, and high-humidity mountainous regions.
✅ Authoritative certifications: Holds ISO9001 (Quality), ISO14001 (Environmental), and ISO45001 (Occupational Health) certifications; every product batch comes with a quality inspection report, meeting qualification requirements for large-scale PV power plant tenders.
1. Distributed PV: Color steel roof factories, flat concrete roofs, and small-scale residential rooftop PV stations.
2. Large-scale Ground-mounted PV Bases: Centralized PV stations on plains, mountains, and in Gobi deserts.
3. Ecological Hybrid PV: Agri-PV, Fishery-PV, Pasture-PV, and Salt-PV hybrid projects.
4. Supporting Steel Structures: PV carports, smart PV greenhouses, and purlin reinforcement for steel-structure factories.
• Supply of complete purlin and connector sets for the Jinsha River 700MW clean energy ground-mounted PV base.
• Supply of connecting components for the Xinxiang Datang 300MW ground-mounted PV project.
• Long-term supplier for the Anyi Ningcao 200MW Agri-PV power station.
• Bulk exports to PV projects in over 20 countries across Southeast Asia, Africa, and Europe.
1. Raw Material Incoming Inspection: Random sampling of Zn-Al-Mg coils, steel plate thickness, and tensile strength; non-conforming materials are rejected from production.
2. CNC Precision Stamping: 20 fully automated punching lines; punching tolerance controlled within ±1mm; uniform and consistent hole spacing.
3. Anti-corrosion Surface Treatment: Hot-dip galvanizing or Zinc-Aluminum-Magnesium coating processes ensure complete coverage on both sides, edges, and corners of the panels.
4. Mechanical Load Testing: Simulations of high-wind and heavy-snow conditions to test the load-bearing capacity of connections and resistance to bending/deformation.
5. Salt Spray Aging Tests: Random sampling from every batch for anti-corrosion salt spray testing to verify outdoor durability.
6. Finished Product Sorting & Packaging: Sorted and packed by specification; includes installation bolts; packaged in moisture-proof export-grade cartons.
1. Direct Factory Source (No Middlemen): Registered capital of 30 million RMB; professional technical team of over 100 people; in-house cold-forming and anti-corrosion production lines; direct factory supply eliminates middleman markups and reduces procurement costs.
2. One-Stop Supply for All PV Mounting Components: In-house production of Purlin Connector, C/Z/U/Sigma-shaped steel, PV clamps, H-beams, and square/rectangular tubes; unified shipment for entire projects reduces coordination costs associated with multiple suppliers.
3. In-House PV System R&D Team: Holds independent intellectual property rights for PV mounting systems; offers free design solutions for PV array layouts and purlin load-bearing structures.
4. Comprehensive Export Qualifications: Full set of "Three Systems" certifications; stable logistics via Tianjin Port; expertise in customs clearance documentation for various countries; extensive experience supplying overseas projects.
A: Customization is supported; we can adjust plate thickness, hole spacing, and the number of holes based on your existing C/Z/U-shaped steel dimensions; production begins once drawings are provided.
A: Small quantities of samples are provided free of charge (shipping costs apply); the sample fee can be fully deducted from the payment for subsequent bulk orders.
A: The Zinc-Aluminum-Magnesium model is suitable for highly corrosive coastal areas and fish pond environments. The entire PV system comes with a unified 25-year service guarantee, while accessories carry a separate 10-year warranty; the product meets salt spray test standards.
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No. 2, Expressway Auxiliary Road, South Area of High-tech Industrial Park, Zitai Economic and Technological Development Zone, Tianjin, China
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