Heavy Duty Aluminum Solar Mounting Rail Splice Kit for Solar Panel Racking System |Art Sign

Heavy Duty Aluminum Solar Mounting Rail Splice Kit for Solar Panel Racking System |Art Sign

Design Features

— Premium Material: Extruded from high-grade anodized aluminum (AL6005-T5) and paired with SUS304 stainless steel fasteners, offering exceptional strength and superior corrosion resistance against harsh outdoor environments.   
— Seamless Alignment: Precision-engineered to slide perfectly outside the rail ensuring a flush and straight alignment between rail segments.   
— Easy & Fast Installation: Only need 4pcs self drilled screws,easy and fast installation ,significantly reducing labor time and costs on site.

— Universal Compatibility: Designed to fit seamlessly with standard aluminum solar mounting rails (can be customized to fit your specific rail profile).

— High Wind & Snow Resistance: Rigorously tested to withstand high wind loads and heavy snow pressure, ensuring long-term system safety.Engineered and tested to meet international standards for wind resistance and structural load-bearing capacity.

Detail and Assembly Diagram

PV aluminum rail splice  Length: 120mm or customized  4pcs self drilled screw ST6.3x25  Material: AL6005-T5 &SUS410	solar panel mounting rail splice Drawing Size: W37.1XH32mm  Colar: Silver or Black Compatible with GR06 Rail
Solar Rail Splice assembled with GR06 Rail by using 4pcs self drilled screws ST6.3x25	PV Rail Connector + GR06 Rail installation

GR06 Rail+Rail Splice Installtion:

Inner packing: Kraft paper packaging	Outer packing: Wooden case / pallet

AS-A-073 Rail splice is only suitable for GR06 Rail.

Hex bolt	G nut	AS-GR-06	Mid clamp and end clamp

FAQ1: What are the material benefits of using AL6005-T5 aluminum for this rail splice?

A: AL6005-T5 is a high-strength structural aluminum alloy that offers excellent mechanical properties and superior corrosion resistance. The T5 tempering process ensures the material is hardened to withstand high wind and snow loads, making it ideal for long-term outdoor solar racking configurations.

FAQ2: Why is the length of this rail splice set at exactly 120mm?

A: The 120mm length provides an optimal structural bridge between two connecting rails. It offers 60mm of insertion depth on each side, which ensures structural continuity, minimizes mechanical deflection at the joint, and allows enough surface area for secure fastening.

FAQ3: How does this 120mm splice handle the thermal expansion and contraction of aluminum rails?

A: Aluminum naturally expands and contracts with temperature changes. When installing long rows of solar arrays, this splice can be configured as a thermal expansion joint by leaving a small gap between the rails inside the splice, allowing the system to breathe without warping or stressing the roof mounts.

FAQ4: Does using a rail splice weaken the structural integrity of the solar racking row?

A: No, when installed correctly, it maintains row integrity. Because it is engineered from high-tensile AL6005-T5 aluminum and fits snugly inside or over the rail profile, it transfers mechanical loads across the joint efficiently. However, it is standard engineering practice to avoid placing a rail splice directly over a roof hook or span support.

FAQ5: What hardware is required to install this AL6005-T5 rail splice?

A: It typically requires stainless steel fasteners (SUS410) to prevent galvanic corrosion. Depending on the specific design, it is secured using 4 self-tapping drilling screws drilled into rail.

FAQ6: Is this rail splice compatible with solar rails from other manufacturers?

A: Compatibility depends entirely on the rail profile design. While AL6005-T5 is a universal material, the splice is precision-extruded to match specific internal or external rail geometries. It is highly recommended to use this splice exclusively with matching proprietary rails to ensure a secure, flush fit.

FAQ7: What does the 20-year warranty cover, and how does the material support it?

A: The 20-year warranty covers structural integrity and manufacturing defects under normal operating conditions. The AL6005-T5 alloy is inherently rust-proof, and it is usually anodized (typically 10μm+ thickness) to provide superior protection against salt mist, humidity, and UV exposure, matching the 20 to 25-year lifespan of modern solar modules.

FAQ8: Are there any specific maintenance requirements to keep the 20-year warranty valid?

A: The splice itself is virtually maintenance-free. However, to comply with warranty terms, installers must follow the manufacturer’s structural guidelines, use the recommended stainless steel fasteners, torque them to the specified Newton-meters (Nm), and inspect the joints during routine annual site maintenance.