What is a C‑shape purlin roll forming machine?

A C‑purlin roll forming machine is equipment that continuously produces C‑shaped steel channels from galvanized or cold‑rolled steel strips.

It completes the whole process including feeding, hole punching, bending and cutting.

This machine is fully automatic and easy to operate with a user‑friendly HMI panel. It consists of a decoiler, sheet guiding device, roll‑forming section, PLC control system, hydraulic cutting unit and product collection table.

Its main advantages include customizable designs, easy and stable operation, and a robust machine frame.

What is a C purlin?

C purlins (also known as Cee purlins) are purlins with a C‑shaped cross‑section. They are horizontal beams used to form roof and wall joists for building envelope structures.

They are installed between roofing sheets and the main building structure, acting as support to hold the sheets firmly and securely in position.

C‑shaped purlins feature light weight, and are convenient for installation and transportation.

What are C purlins used for?

They are widely applied in roofs, trusses, factory buildings, civil residences and other construction projects.

Key Features:

• 60Hz motor option — motors customized for Brazilian power supply (220V/380V, 60Hz), plug-and-run
• PLC + touch screen control — automatic length setting, accurate cutting, digital counter
• Hydraulic cutting system — clean, burr-free cuts, long blade life
• High speed — production speed 10–20 m/min
• Quick changeover — simple adjustment for different C profiles and thicknesses
• Heavy-duty frame — stable forming, consistent profile dimension
• Easy operation — one operator, minimal training required

Technical Parameters

Standard configuration: 

decoiler, feeding & leveling device, roll forming unit, hydraulic cutting unit, PLC control system, output table.

We are a professional roll forming machine manufacturer.

Factory direct price,

12-month warranty,

spare parts available, and engineers available for online guidance and installation support.

2026 Industry Trends: Purlin Roll Forming Process

• Shift to servo-electric punching/shearing reduces hydraulic downtime and improves hole repeatability for faster site bolting.
• Inline vision/laser systems feed SPC dashboards, enabling automatic recipe tweaks that cut scrap from edge wave and springback.
• Increased use of higher-strength steels (S500–S550) to meet wind/seismic code demands without added weight.
• Data interoperability via OPC UA/MQTT to MES/SCADA supports predictive maintenance and energy KPIs (kWh/ton).
• Sustainability focus: energy-regenerative drives and recycled-content coils prioritized in procurement.