The Lumax rail splice is a mechanical connector that joins two sections of mounting rails used to support framed PV modules. Rather than relying on very long single‑piece rails, splices allow you to use shorter rail lengths and join them on-site to form a continuous support rail. This approach improves flexibility, reduces transport and handling challenges, and enables scalable solar installations.
When properly installed (with compatible rails, bolts/nuts or T‑nuts, and correct torque), a splice acts as a structural joint: it ensures that joined rails behave as a single rail — transferring loads (panel weight, wind loads, mechanical stress), maintaining alignment/level, and providing stable support for panel clamps, brackets, and the PV modules themselves.
Aluminium Alloy (commonly AL6005‑T5) — lightweight, high‑strength, corrosion‑resistant
Anodised surface treatment to resist corrosion and extend lifespan under outdoor exposure
Designed for standard solar‑mounting rails, the splice must match the rail profile (channel/slot dimensions) to ensure a proper fit and structural integrity
Engineered to handle structural loads: vertical loads (module weight), shear, lateral loads, wind uplift / environmental loads (depending on rail & system design)
The splice improves structural stability, reducing weak points at joints, and ensuring even load distribution across the full length of the array (panel weight, wind, mechanical stress).
The Lumax rail splice allows you to use standard‑length rails and splice them on site — simplifying transport, storage, and logistics.
The splice allows you to make your rail system modular. Rails can be joined as needed to match the roof size or site layout. This modularity offers flexibility: you can adapt to different building sizes, roof shapes, and project scopes without a large variety of bespoke components.
The simple slide-and-bolt installation process is quick and straightforward, reducing on-site labour time and complexity compared to fabricating custom rail solutions. This compounding efficiency gain directly improves project margins.
Splices allow installers to extend rail lengths to fit any size rooftop or ground-mount system without needing to source expensive and cumbersome custom-length rails, enabling confident bids on larger and more complex projects.
