Description
High-Performance C and Z Purlin Forming Solution
Designed for modern steel structure manufacturing, this C/Z purlin roll forming machine integrates coil feeding, leveling, CNC punching, profile forming, flying cutting, and finished-product stacking into one automated production line.
Its quick profile conversion system allows manufacturers to produce both C-shaped and Z-shaped purlins on the same machine. Depending on the selected configuration, switching between the two profiles can be completed within approximately 5–15 minutes, helping reduce downtime and improve overall production efficiency.
With a forming speed of up to 20–60 m/min and servo-controlled tracking cutting technology, the line is suitable for continuous production where consistent dimensions, accurate punching, and stable forming quality are essential.
Main Advantages of the C/Z Purlin Machine
Quick Conversion Between C and Z Profiles
The machine is equipped with a specially designed interchangeable forming system that supports rapid conversion between C and Z purlins. Depending on the configuration, profile changes can be performed through manual adjustment or motorized PLC-controlled rotation.
This allows manufacturers to handle different structural profile requirements without replacing the complete roller tooling, making the production line more flexible for multi-size orders.
High-Speed Continuous Forming
A servo tracking flying shear system enables the finished profiles to be cut while the forming line continues operating. The production speed can reach 20–60 m/min, depending on the raw material, profile dimensions, thickness, and machine configuration.
This continuous forming approach helps reduce unnecessary stopping and restarting during long production runs.
Durable Precision Rollers
The forming rollers are manufactured from GCr15 or Cr12MoV alloy steel and undergo hardening and vacuum heat treatment. These processes improve wear resistance and help maintain roller accuracy during extended production.
Stable roller performance is particularly important when producing structural purlins that require consistent dimensions and reliable fitting during steel building assembly.
Integrated Automated Production
The complete line combines multiple processes into one coordinated system, including:
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Coil uncoiling
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Strip leveling
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CNC servo punching
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Multi-pass cold roll forming
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Servo tracking cutting
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Automatic finished-product stacking
By integrating these operations, the production process becomes more streamlined and reduces the need for repeated manual handling.
Complete C/Z Purlin Roll Forming Line Configuration
1. Hydraulic Uncoiler with Loading Car
The hydraulic decoiler is available in 3T or 5T capacity and is designed to provide stable material feeding for heavy steel coils. The loading car assists with coil positioning and handling during material preparation.
2. Multi-Roll Precision Leveling System
Before punching and forming, the strip passes through a multi-roll leveling unit. It helps correct coil curvature and reduce internal stress, providing a flatter and more stable strip for downstream processing.
3. CNC Servo Punching Unit
A high-speed CNC punching system provides flexible hole positioning for different C/Z purlin designs. Multi-station punching allows web and flange bolt holes to be processed according to the required structural layout.
4. Main C/Z Cold Roll Forming Mill
The main forming section consists of 20 forming stations with adjustable roller stands. The configuration is designed to support different C and Z profile dimensions while maintaining stable forming performance.
5. Servo Tracking Flying Shear
The flying shear follows the moving profile during cutting, allowing the line to perform length cutting without completely stopping the forming process. This helps maintain production continuity while achieving accurate finished lengths.
6. Automatic Run-Out Stacker
After cutting, finished purlins are transferred to the run-out section and automatically collected and stacked. This reduces manual material handling and helps keep finished products organized for subsequent transportation or installation.
Where C/Z Purlin Roll Forming Machines Are Used
Steel Structure Buildings
C and Z purlins are widely used as secondary structural members in steel building systems. The machine can support large-volume production for roof purlins and wall girts used in industrial and commercial buildings.
Pre-Engineered Building Systems
For PEB systems, accurately formed steel profiles are required for structural framing, bracing, and related construction components. Automated punching and forming make it easier to produce standardized profiles for different building designs.
Warehouses and Logistics Centers
Large-span warehouses and logistics facilities often require high-strength, consistently dimensioned steel framing components. Automated C/Z purlin production can provide the standardized profiles needed for these applications while supporting continuous manufacturing.
C/Z Purlin Roll Forming Machine Specifications
| Specification | Details |
|---|---|
| Compatible Materials | Cold-rolled strip, hot-rolled strip, galvanized steel, color-coated steel |
| Material Yield Strength | ≤355 MPa; higher-strength materials available |
| Material Thickness | 1.0–3.0 mm |
| Coil Inner Diameter | 500 / 600 mm |
| Strip Width | 800–1250 mm, customizable |
| Production Speed | 20–60 m/min |
| Forming Stations | 20 stations |
| Roller Material | GCr15 / Cr12MoV alloy steel |
| Roller Treatment | Hardened and vacuum heat-treated |
| Cutting System | High-speed servo tracking flying shear |
| PLC Control | Siemens / Delta automatic control system |
| Total Motor Power | Approximately 35–45 kW |
Flexible Profile and Size Adjustment
One of the major benefits of a C/Z purlin roll forming machine is its ability to accommodate different profile dimensions on the same production line.
The adjustable roller arrangement allows operators to modify the forming setup for different web heights and flange dimensions. This provides greater flexibility when manufacturers need to produce multiple purlin specifications for different steel construction projects.
The quick-change design is particularly useful for factories handling varied orders, as it can reduce setup time between production batches.
Frequently Asked Questions
How quickly can the machine change from C purlin to Z purlin?
The switching time generally ranges from 5 to 15 minutes, depending on whether the line uses manual roller rotation or a motorized PLC-controlled profile-changing system.
Can different C/Z purlin sizes be produced on the same machine?
Yes. The adjustable roller system allows the forming configuration to accommodate different web widths, web heights, and flange dimensions. The actual size range depends on the machine design and customized configuration.
Is installation and operator training available for overseas customers?
Yes. Technical support can include international installation, commissioning, operator training, and ongoing technical assistance. The specific service arrangement can be determined according to the customer's project and machine configuration.
A Flexible Solution for Modern Steel Profile Manufacturing
A well-configured C/Z purlin roll forming machine can combine high-speed forming, automatic punching, rapid profile conversion, precision cutting, and automated stacking within one production system.
For steel structure manufacturers, this integrated approach provides greater flexibility when producing different C and Z purlin specifications while helping maintain consistent production quality. The combination of 20 forming stations, servo-controlled punching and flying shear systems, durable alloy-steel rollers, and automatic PLC control makes the line suitable for demanding steel building and structural profile applications.
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