Solar Mounting Structures and Roll Forming: A Natural Fit
Why strut channels, purlins and rails for PV racking are almost always roll formed - and what machines are involved.
Solar Mounting Structures and Roll Forming: A Natural Fit
As solar energy capacity keeps growing worldwide, one quiet workhorse behind every photovoltaic (PV) plant is the steel mounting structure that holds the panels. Strut channels, purlins and rails for PV racking systems are almost always produced by cold roll forming - and for good reason.
Why Roll Forming Wins for PV Structures
- High volume, consistent profile - solar projects run thousands of identical profiles; roll forming produces them continuously with tight tolerances.
- Material efficiency - coil-fed production with minimal scrap keeps per-meter cost low, which matters at megawatt scale.
- Strength where needed - 2-4mm high strength steel (up to 550MPa) can be formed into C, U, Z and strut channel sections that meet structural load requirements.
- Custom sections - racking designers often need non-standard profiles; roller sets can be machined to any drawing.
What Machines Are Involved
A typical PV mounting line includes a hydraulic decoiler feeding the coil, and a solar strut channel roll forming machine forming C/U strut channels and purlins at 30 m/min. The same line can often produce general C and Z purlins for steel structures, so the investment serves both solar and construction markets.
The Bottom Line
For EPC companies, racking manufacturers and steel fabricators entering the solar supply chain, a dedicated strut channel and purlin line is a proven, scalable entry point. Zhongtuo (ZTRFM) supplies CE and ISO certified solar mounting lines with OEM profile customization, video inspection and flexible payment terms - ask us for a configuration.