V type Perforated Keel Roll Forming Machine
This C purlin roll forming machine belongs to C/Z purlin roll forming machine category, full-automatic cold bending equipment for C channel steel used in steel structure factories and prefabricated buildings. Adopting CNC online stepless width & height adjustment structure, it can switch all C80–C300 purlin sizes only by inputting parameters on touch screen, without roller replacement or frame disassembly, drastically saving model change time and reducing multi-machine purchase cost.
Finished C channels act as secondary roof purlins and wall load-bearing keels, widely used in steel workshops, warehouses, shopping malls, parking garages and cultural tourism prefabricated constructions. Compatible with 1.2–3.0mm hot-dip galvanized & high zinc coating steel strips.
The machine frame is integrally welded with heavy thick square tube gantry structure and stress-relieved by high-temperature annealing after welding to eliminate welding deformation stress, running without vibration during long-time heavy-load high-speed forming with stable dimensions. All forming rollers are integrally forged solid 45# carbon steel with full hard chrome plating after quenching for superior wear and compression resistance. Multi-pass progressive bending roller stands fully form closed C-channel profiles in one feeding stroke, scratch-free sheet surface with minimal spring-back. The machine integrates double-side hydraulic punching stations to stamp mounting & connecting holes synchronously, realizing full-process automation: uncoiling → punching → roll forming → fixed-length cutting.
Web depth, flange width and inner lip size are all electrically adjusted by CNC, target dimensions input directly on HMI for one-click auto positioning, no manual fine-tuning required.
Equipped with dual variable frequency synchronous chain transmission, no slipping during thick galvanized strip forming, running smoothly with low noise, forming speed steplessly adjustable from 8 m/min to 25 m/min. Heavy-duty double-side deviation correction at feeding inlet keeps thick sheets centered without offset. Dual-cylinder heavy hydraulic cutting unit at tail with thickened wear-resistant blades fits thick gauge material, delivering burr-free & distortion-free cut ends, finished length tolerance ≤±0.8mm. Integrated PLC touch screen control system stores hundreds of C-channel profile parameter recipes for one-click size switch, fully automatic operation, only one operator required for 24-hour non-stop continuous production.
Every C purlin forming machine undergoes a 72-hour full-load thick coil endurance test before delivery to calibrate multi-size outer dimension, punching precision and cutting tolerance. Complete spare forming rollers, punching dies, hydraulic sealing parts and bilingual machine operation & maintenance manuals are supplied as standard accessories. Xinnuo offers a 2-year full machine warranty, customized three-phase industrial voltage available for all countries, delivery lead time 50–60 days. Remote installation & debugging guidance is accessible for overseas buyers. This steel structure load-bearing C channel keel forming equipment receives bulk orders from construction engineering and building material manufacturers worldwide.
| Parameter Item |
Specification |
| Model Name |
C Purlin Roll Forming Machine / CNC Stepless Auto Size Change C Channel Forming Equipment |
| Category |
C/Z Purlin Roll Forming Machine |
| Processable Materials |
Hot-dip galvanized steel strip, high zinc coating load-bearing galvanized coil |
| Applicable Sheet Thickness |
1.2–3.0mm |
| Adjustable C Purlin Range |
C80–C300 CNC stepless electric adjustment (custom wider & higher model) |
| Roller Material |
Integrally forged 45# carbon steel + surface quenched hard chrome plating wear-resistant treatment |
| Number of Forming Stands |
22–32 roller stations |
| Integrated Functions |
Double-side online hydraulic punching, full auto CNC stepless size adjustment |
| Speed Control Mode |
Dual independent synchronous variable frequency stepless speed regulation |
| Forming Running Speed |
8–25 m/min |
| Total Main Motor Power |
11kW |
| Cutting System |
Dual-cylinder heavy hydraulic fixed-length cutting |
| Dimensional Tolerance |
Finished length error ≤±0.8mm |
| Control System |
Integrated PLC touch screen full-automatic NC, hundreds of profiles stored for one-click switch |
| Overall Dimension |
8600×1400×1500mm |
| Total Machine Weight |
4.5 Tons |
| Warranty Period |
2 years full machine warranty |
| Delivery Lead Time |
50–60 days |
