Guojian Factory is a professional manufacturer and supplier of Solar Panel Clamps. This product is an indispensable fastening component in the construction of photovoltaic power stations, mainly used to fix photovoltaic modules on installation rails. They are suitable for various installation systems, including roof, ground, and carport installations.
The Solar Panel Clamps manufactured by Guojian Supplier are precisely forged from high-quality steel that complies with national standards. They have undergone advanced surface treatment processes and possess four major advantages: high strength, resistance to deformation, corrosion resistance, and ease of installation.
1. Formed from high-strength profiles, the unit offers superior overall rigidity; the clamping interface fits snugly against module frames, ensuring stability against shifting or loosening after tightening and providing excellent wind load resistance.
2. Manufactured via an integrated stamping and forging process, the product features precise dimensional tolerances and a superior fit compared to standard, simple clamps, making it ideal for long-term outdoor exposure.
3. Highly versatile, it is compatible with various module frame specifications and integrates seamlessly with diverse steel structures, including square-tube carport mounts, rooftop racking, and ground-mounted systems.
4. Dual-function positioning design: end clamps secure modules at the array edges, while mid-clamps join and secure adjacent modules.
5. High-strength outdoor corrosion resistance: the entire unit undergoes hot-dip galvanizing to prevent oxidation from air and rain; it withstands intense sun and frost, making it suitable for diverse outdoor conditions across different regions.
6. Project-ready adaptability: supports customization for non-standard sizes and accommodates various module thicknesses and mounting specifications, meeting the requirements for formal engineering inspections and acceptance.
Core Product Advantages
1. Precision Materials & High Load-Bearing Capacity
The entire clamp series is manufactured from high-quality Q235 carbon structural steel (meeting national standards), characterized by a dense, uniform structure and excellent toughness. Precision-forged as a single piece, the clamps are free from joints, porosity, and cracks. They offer high hardness and resistance to impact and compression, easily withstanding the weight of PV modules and extreme external forces such as strong winds and heavy snow. They maintain their shape and tightness under long-term loads, effectively resolving common issues like breakage and insufficient load-bearing capacity found in standard clamps.
2. Corrosion & Weather Resistance for Extended Service Life
Utilizing a dual-protection process—hot-dip galvanizing combined with powder coating—the clamps feature a uniform, durable zinc layer and a smooth, seamless surface. This provides effective protection against harsh environmental factors, including sunlight, rain, frost, acid/alkali corrosion, and wind-blown dust. They perform reliably in complex conditions—such as high-salinity coastal areas, corrosive industrial environments, freezing northern winters, and hot, humid southern climates—offering corrosion and rust resistance far superior to standard stamped clamps. With a service life exceeding 25 years—matching that of the PV power plant itself—they significantly reduce long-term maintenance and replacement costs.
3. Precision Fit and Broad Compatibility
Precision-engineered with millimeter-level tolerance control, these Solar Panel Clamp align with industry-standard installation specifications, ensuring 100% compatibility with conventional PV modules and various steel mounting structures. They support diverse installation configurations—including flush-mount, tilted, and tracking systems—and are suitable for all application scenarios, such as tile roofs, color steel roofs, concrete roofs, ground-mounted arrays, and solar carports. Requiring no custom modifications, they offer exceptional versatility and provide a one-stop solution for the entire mounting system.
4. Efficient Installation: Saving Time and Effort
The clamps feature a user-friendly design that contours perfectly to module frames and mounting rails, ensuring precise positioning and a snug fit. Supplied with dedicated fastening bolts and washers, the kit is complete and requires no additional components. Installation is simple and can be quickly executed by a single person without specialized tools or complex procedures; this significantly shortens construction timelines, reduces labor costs, and meets the demands of rapid, large-scale project deployment.
5. Secure Locking: Safe and Reliable
A unique anti-slip locking design generates high friction, effectively preventing module displacement or loosening caused by wind-induced vibration or thermal expansion and contraction. Once installed, the structure fits tightly with evenly distributed loads, avoiding crushing damage to module frames. This ensures installation stability while keeping the PV modules intact, thereby eliminating safety hazards at the component level.
Core Product Specifications
• Product Name: Solar Panel Clamp (Complete set of mid-clamps and end-clamps)
• Corrosion Resistance: Outdoor Grade A (weather-resistant and anti-corrosive)
• Service Life: ≥25 years
• Product Specifications: Standard universal models (non-standard specifications customizable based on client mounting and module dimensions)
• Included Accessories: Complete set of specialized bolts, anti-slip gaskets, and fastening nuts
Application Scenario Showcase
1. Residential Rooftop PV: Suitable for rural self-built homes, residential tile roofs, and small-scale PV plants on color steel tile roofs; compact, lightweight, and unobtrusive; preserves roof structural integrity while ensuring stability and durability.
2. C&I PV Power Plants: Suitable for large-scale rooftop PV installations on factories, warehouses, and office buildings; highly adaptable for mass installation; wind-resistant and stable; designed for long-term commercial power generation.
3. Ground-Mounted Utility-Scale PV: Suitable for centralized PV plants on mountainous terrain, wasteland, or farmland; withstands extreme outdoor environments (wind, sand, rain, snow); ensures zero-failure long-term operation.
4. PV Carport Power Plants: Suitable for T-shaped and square-tube steel PV carports; offers stable load-bearing capacity and fits seamlessly with carport structures; ensures safe operation for integrated parking and power generation.
5. Smart Tracking PV Power Plants: Suitable for dynamic operation of single- and dual-axis tracking mounts; vibration-resistant and anti-loosening; designed to withstand the frequent rotation of tracking systems. Manufacturer Capabilities & After-Sales Support
Our company has specialized in the R&D and manufacturing of photovoltaic (PV) steel mounting structures and accessories for years, boasting standardized workshops, precision machining equipment, and a comprehensive quality control system. All clamp products undergo four rigorous quality checks—compression, anti-corrosion, weather resistance, and tensile strength tests—ensuring 100% product compliance and consistent quality.
Service Advantages
1. Ample Stock: Massive inventory of standard-sized clamps; orders placed and shipped on the same day to ensure project schedules remain on track.
2. Customization Services: Support for non-standard dimensions, special processing techniques, and custom anti-corrosion specifications; made-to-order production.
3. Quality Assurance: 25-year warranty on the entire product line; free after-sales service for quality issues not caused by human error.
4. Project Integration: One-stop supply of complete PV mounting systems and accessories, eliminating the hassle of sourcing from multiple vendors.
FAQs
Q1: What is the difference between mid-clamps and end-clamps? How should they be used together?
A: End-clamps secure the outermost edges of a PV panel array; mid-clamps secure the junction between two adjacent PV panels, providing dual-sided locking. Standard configuration: one PV panel setup requires 2 end-clamps plus the appropriate number of mid-clamps (quantities can be adjusted based on installation layout drawings).
Q2: Are the clamps universal? Do they fit all PV panels and mounting structures?
A: Standard GB-compliant clamps fit 99% of conventional crystalline silicon PV modules, universal mounting structures (square tube/C-channel/aluminum alloy), PV carports, rooftop mounts, and tracking systems. Custom processing is available for special frame shapes, ultra-thin modules, and non-standard mounts upon provision of dimensions.
Q3: How do I choose between hot-dip galvanizing and powder coating?
A: Hot-dip galvanizing is recommended for standard inland or dry regions due to its cost-effectiveness and reliable rust protection. Powder coating is recommended for highly corrosive environments—such as coastal areas, regions with acid rain, or industrial zones—as it offers superior weather resistance, anti-corrosion properties, salt spray resistance, and a longer service life.
Q4: Will they rust, loosen, or blow off in strong winds during outdoor use?
A: Our Solar Panel Clamp feature an integrated, one-piece molded design with a tight, secure fit and anti-slip/anti-detachment mechanisms, capable of withstanding Force 12 gales. They feature a thickened galvanized layer and a dense protective coating that prevents outdoor rusting, weathering, and delamination, ensuring stable performance for over 25 years under normal outdoor conditions.
Q5: Is there stock available? Can you supply large-scale projects on time?
A: We maintain massive, year-round inventory of standard mid-clamps and end-clamps, supporting same-day order processing and shipping. For massive projects (10,000-ton scale), we can expedite production schedules to meet specific supply needs without delaying project timelines.
Q6: Do the accessories come as a complete set? Do I need to buy screws separately?
A: All clamps come as complete sets including bolts, nuts, and anti-slip washers. They are ready for immediate installation upon arrival—no extra parts to buy, saving you the hassle of sourcing matching components.
Q7: Do you support non-standard customization? Can you manufacture based on drawings?
A: Yes, we do! We can customize clamps with specific widths, thicknesses, and shapes based on your mounting structure specifications, module heights, and installation methods, and we handle custom orders for all types of large-scale PV projects.
Purchasing Information
We offer two types of clamps: end-clamps (for securing the outermost modules in a PV array) and mid-clamps (for securing and joining adjacent modules). You can mix and match these based on your installation requirements. If you need clamps to fit special module frames or unique mounting structures, we support custom manufacturing based on your dimension drawings. We welcome inquiries and partnership opportunities from project contractors, distributors, and end-users.
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