Longze Universal Aluminum Solar Mid Clamps are high-precision internal fastening components engineered to secure two adjacent solar modules to mounting rails with absolute stability. Manufactured from high-tensile AL 6005-T5 Aluminum, these professional-grade fasteners provide a uniform clamping force and integrated electrical bonding, ensuring the long-term structural and electrical integrity of your entire photovoltaic array.
Designed for versatility and durability, our mid clamps are compatible with all standard module frame thicknesses from 30mm to 50mm. By integrating specialized serrated pins to pierce anodized layers for seamless grounding, these components offer a professional finish for rooftop, ground-mount, and BIPV systems, effectively mitigating wind-lift and vibration risks in extreme environments.
Detailed Parameters
| Material Grade | AL 6005-T5 / SUS 304 (Bolt) | Applicable Standards | DIN 6923 / ISO 4161 / ASME B18.16.4 |
|---|---|---|---|
| Tensile Strength | ≥ 260 MPa (AL 6005-T5) | Yield Strength | ≥ 240 MPa (AL 6005-T5) |
| Surface Finish | Clear/Black Anodized / Powder Coated | Anodizing Thickness | 12μm - 15μm |
| Frame Compatibility | 30mm / 35mm / 40mm / Universal | Max Wind Load | Up to 60 m/s |
| Salt Spray Test | 1000+ Hours | Max Torque | 15-18 N.m |
Key Advantages
High-Tensile AL6005-T5
Specially tempered to resist deformation under high-torque fastening, ensuring modules remain secure during extreme wind vibrations.
25-Year Integrity
Advanced anodizing and stainless steel fasteners prevent galvanic corrosion, guaranteeing structural life for quarter-century installations.
Integrated Grounding
Features specialized serrated pins that pierce the anodized layer for seamless electrical bonding and lightning protection.
Universal Compatibility
Designed to fit all standard frame thicknesses (30-50mm), providing a flush, professional finish for diverse PV projects.
Aesthetic Versatility
Available in Black Anodized finishes for residential aesthetics without compromising the 12μm+ protective layer.
ISO 9001 Certified
Rigorous 5-step QC including thread Go/No-Go gauge verification and load-bearing simulations for zero-defect logistics.
Product Gallery
Management Platforms
Pre-Assembled Kits
Optimized logistics with Clamp + Bolt + Nut + Spring kits to reduce on-site assembly time.
Torque Control
Strict 15-18 N.m torque guidelines to prevent aluminum bowing and module glass micro-cracks.
Precision Sizing
Exact bolt length calculation to ensure full thread engagement and prevent "bottoming out".
Corrosion Prevention
Strict use of SUS 304 (A2-70) fasteners to eliminate galvanic corrosion risks with aluminum.
Export Packaging
Reinforced cartons optimized for bulk export from the Yongnian fastener manufacturing hub.
Rail Compatibility
Universal T-slotted rail design with customizable T-bolts to match specific rail profiles.
Investment Return Comparison
| Feature | Standard Generic Clamp | Longze Premium Mid Clamp |
|---|---|---|
| Material | Standard Aluminum Alloy | AL 6005-T5 (High-Tensile) |
| Corrosion Resistance | Zinc-plated Carbon Steel | SUS 304 Stainless Steel |
| Bonding Tech | Flat Contact | Serrated Grounding Pins |
| Anodizing | Thin Film / Uncoated | 12μm+ Thick Anodized |
| Service Life | 5-10 Years (Risk of Corrosion) | 25+ Years (Certified Integrity) |
Frequently Asked Questions
To prevent galvanic corrosion, never use carbon steel bolts with aluminum clamps. Always use Stainless Steel 304 (A2-70) fasteners to ensure the electrochemical potential difference does not cause the aluminum to corrode.
The recommended torque is between 15-18 N.m. Overtightening can cause the aluminum clamp to bow, creating localized stress points on the solar module glass which may lead to micro-cracks.
Yes, our Solar Mid Clamps are designed for standard T-slotted rails. For specialized rail profiles, we can provide customized T-bolts or rail nuts to ensure a perfect fit.
AL 6005-T5 offers a superior balance of high tensile strength (≥ 260 MPa) and excellent corrosion resistance, making it specifically suited for load-bearing structural components in outdoor PV systems.
The clamps feature specialized serrated "teeth" or pins. When tightened, these pins pierce the module's anodized aluminum frame, creating a direct electrical path for grounding and lightning protection.
We offer Black Anodized finishes for residential projects. This provides a high-end matte appearance that blends with black modules while maintaining the same 12μm+ protective thickness as clear anodizing.
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