Purlin Cleat

Purlin Cleat — Product Introduction

A purlin cleat is a specialized load-bearing connector used to support and secure purlins in photovoltaic (PV) mounting systems and steel structure buildings. Manufactured according to national building standards and engineering design drawings, this product is typically cold-formed or welded from high-quality carbon structural steel. Its surface is treated with hot-dip galvanizing or zinc-aluminum-magnesium coating, offering firm connections, reliable load-bearing capacity, and durable anti-corrosion performance.

I. Product Features

• Standardized specifications: Manufactured according to GB 50017 "Standard for Design of Steel Structures" and related atlases; dimensional tolerances, welding quality, hole diameters, and hole spacing comply with national standards and design requirements.

• Reasonable structure: Common designs include L-shaped, C-shaped, or angle steel triangular supports, which support the bottom edge or web of the purlin and fit closely with the rafter, effectively restricting the sliding and twisting of the purlin.

• Excellent material: Typically made of high-quality carbon structural steel such as Q235B or Q355B, fabricated by welding steel plates or using cold-formed steel profiles, balancing high strength and good toughness.

• Surface protection: The surface can be treated with hot-dip galvanizing, zinc-aluminum-magnesium coating, or anti-rust paint. The coating adheres firmly, effectively improving rust prevention and weather resistance.

• Complete specifications: Covers height and hole position specifications compatible with various common C-channel and Z-channel purlins, and can also be customized according to project drawings.

II. Product Advantages

• Compliant and reliable: Conforms to structural stress codes, featuring strong node load-bearing capacity and stable quality, providing a guarantee for the overall safety of the mounting system.

• High matching precision: Formed dimensions and punching positions are precisely controlled to fit tightly with purlins and steel beams, reducing on-site hole enlargement and improving installation quality.

• High strength and long lifespan: The reasonable stress structure and anti-corrosion process give it excellent bending, shear, and pull-out resistance, making it resistant to deformation and ensuring a long service life.

• Efficient installation: Supports both welding and bolted connections, making on-site positioning convenient and reducing the difficulty of high-altitude operations.

• Low overall cost: Mature processing technology and high material utilization rate; standardized production effectively reduces procurement and construction costs.

III. Scope of Application

• Photovoltaic mounting systems: Widely used in ground-mounted and rooftop power stations to reliably secure purlins to rafters or main beams, serving as a core node accessory.

• Steel structure buildings: Used in pitched roof systems of industrial plants and warehouses to support and secure roof purlins and wall girts.

• Metal enclosure systems: Used in metal roof and wall structures as a transition support connecting main steel beams and secondary structural purlins.

• Complex terrain projects: With adjustable or customized designs, suitable for special angle installation scenarios such as mountain photovoltaic projects and curved roofs.