SOLAR PANEL MIDDLE CLAMP ALL SIZE

A solar middle clamp is a key component used in solar photovoltaic (PV) mounting systems. It is specifically designed to secure two adjacent solar panels to a mounting rail, typically on rooftop or ground-mounted installations. Positioned between two solar panels, the middle clamp holds the inner edges of the panels firmly in place, ensuring structural stability and maintaining a uniform spacingusually between 15 to 25 millimetersto allow for thermal expansion and ease of maintenance.

Middle clamps typically consist of an anodized aluminum clamp body (commonly AL6005-T5), along with a stainless steel bolt and nut (usually SUS304). The bolt, often a T-bolt or hammer bolt, slides into the channel of the mounting rail, allowing for easy alignment and secure fastening. A washer is generally included to ensure even pressure distribution and prevent loosening over time. The clamp height is selected based on the thickness of the solar panel framecommon sizes include 30 mm, 35 mm, 40 mm, and 46 mm.

During installation, the first panel is placed on the rail, the middle clamp is positioned at the edge, and the second panel is aligned next to it. The clamp is then tightened using a torque wrenchtypically to 1012 Nmto ensure secure fixation without damaging the panel frame. Proper installation of middle clamps is essential for withstanding wind loads, snow loads, and other environmental stresses. Some middle clamps are also designed to provide electrical grounding by penetrating the anodized layer of the panel frame, ensuring continuity across the PV array.

In summary, solar middle clamps are vital for ensuring the mechanical stability and electrical reliability of a solar power system. They must be carefully selected and installed based on the panel specifications, rail type, and environmental conditions of the installation site.