Cold Formed Steel Purlin

Energet Solar focuses on the production of standard and customized Cold Formed Steel Purlin that complies with international steel structure specifications, widely used in ground-mounted solar power stations, rooftop photovoltaic systems, solar carports and industrial steel frame buildings. It mainly includes C-shaped and Z-shaped cold-formed purlins, serving as the secondary load-bearing structure of solar mounting systems to connect main support beams and fix module arrays.

Our Cold Formed Steel Purlin adopts high-quality strip steel raw materials supplied by Xintian Steel, with stable mechanical properties and good ductility. Different from traditional hot-rolled steel parts, the whole production process is completed at normal temperature without high-temperature heating, which effectively avoids material performance attenuation and surface oxidation. Adopting continuous cold bending, precise cutting and automatic punching technology, each purlin has smooth surface, uniform wall thickness and accurate hole spacing, ensuring perfect assembly matching with various brackets and connectors.

What is It Used For?

Serving as the secondary load-bearing structure of solar mounting systems, our purlins connect main support beams and fix module arrays, providing essential support and stability for your project.

Dimension

Application

Our Cold Formed Steel Purlins are widely used in:

- Ground-mounted solar power stations

- Rooftop photovoltaic systems

- Solar carports

- Industrial steel frame buildings

- Steel Structures (Applied in Beams, Columns, Purlins)

Usage Precautions

To fully exert the structural performance and extend the service life of Cold Formed Steel Purlin, standardized installation and daily protection must be followed strictly:

Avoid On-site Modifications: Avoid random cutting, drilling, or bending on site, as arbitrary modification will damage the original mechanical structure of the purlin and reduce overall load-bearing stability.

Match Installation Span: Match the installation span reasonably according to product specifications; excessive spanning beyond design standards will cause structural bending deformation under long-term snow and wind load.

Protect the Coating: Protect the coating surface during transportation and installation, avoid hard collision and scratch damage, and repair local damaged coating in time to prevent rust expansion.

Reserve Drainage Gaps: Reserve reasonable drainage gaps during installation to avoid long-term water accumulation on the purlin surface causing local corrosion.

Regular Inspections: Conduct regular structural inspections for projects in coastal and high-humidity areas to ensure long-term stable operation of the purlin system.

Our Service

We provide full-cycle professional supporting services for Cold Formed Steel Purlin, covering pre-sales consultation, in-production tracking, and after-sales technical support to create a worry-free procurement experience for global customers:

Pre-sales: Our technical team combines local climatic conditions, project span, and load standards to recommend suitable purlin models, coating types, and installation schemes, avoiding improper selection and construction risks.

In-production: We implement full-process quality monitoring, conduct dimensional calibration, flatness detection, and coating performance testing for each batch of products, and synchronize production progress and sample inspection reports for customer confirmation.

After-sales: We provide remote installation guidance and standardized construction suggestions to help the construction team improve assembly efficiency. We also support flexible batch delivery and customized packaging solutions, and provide long-term after-sales follow-up service, effectively helping customers reduce project construction risks and later maintenance costs.

Manufacturing Capabilities

Leveraging Tianjin's mature steel structure supply chain and modern production facilities, Energet Solar possesses comprehensive manufacturing capabilities encompassing cold-roll forming, automated punching, laser cutting, and surface treatment. The company operates over 40 production lines capable of high-volume, continuous production of cold-formed steel purlins, meeting delivery requirements for both standard and customized products.

Throughout the production process—from raw material intake and cold-roll forming to dimensional inspection and final packaging—quality control is strictly implemented at every stage to ensure dimensional accuracy, hole-position consistency, and overall structural stability.

Industry Recognition

Energet Solar maintains strong market competitiveness within China's PV mounting system industry.

The company ranked 5th among the "Top 20 PV Mounting System Enterprises in China" (2026). This ranking is based on a comprehensive evaluation of multiple factors—including product shipment volumes, PV project applications, installed capacity, and market influence—reflecting the company's overall strength and industry standing in the field of PV mounting system manufacturing.

FAQ

Q1: What is the difference between cold-formed steel purlins and hot-rolled purlins?

Cold-formed steel purlins are characterized by their light weight, high dimensional accuracy, and high material utilization efficiency.

Q2: Can you manufacture products based on drawings?

Yes, we support production based on CAD drawings and project-specific customization.

Q3: Are they suitable for coastal areas?

Hot-dip galvanizing or ZAM275 coatings can be applied to enhance corrosion resistance.

Q4: What is the minimum order quantity (MOQ)?

We support both standard and custom specifications, and production can be arranged according to project requirements.