J&R purlin making machine is a fully automatic roll forming equipment designed for steel structure buildings. It can continuously process galvanized steel coils (thickness 0.4-3.0mm) into C-type/Z-type/U-type purlins (height 50-350mm), suitable for roof support, wall beams, shelves, and other light steel structure manufacturing.
Core design architecture
| Module | Functional Description |
| Unwinding and Leveling Unit | Hydraulic expansion steel coil + nine-roller leveling to eliminate material internal stress (accuracy ±0.3mm/m) |
| Servo Feeding System | High-precision encoder controls feeding (step error ≤ 0.1mm), supports variable cross-section processing |
| Multi-stage Roll Forming Station | 12-24 sets of hard chrome alloy rollers (HRC58-62), progressive cold bending (die life ≥5000 tons) |
| Hydraulic Cutting Unit | Double-edged die-cutting technology (cut surface flatness ≤ 0.2mm), adjustable length (1-12 meters) |
| Intelligent Control System | 10-inch HMI touch screen + PLC, integrated parameter memory, fault diagnosis, production statistics function |
Six major technical advantages
High-precision forming
Roller dynamic balance compensation technology, straightness deviation <1.5mm/6m (1/2 of the national standard GB)
Flexible production
10 seconds fast mold change (patented quick release system), support 20+ purlin section switching
Energy saving and consumption reduction
Frequency conversion drive + energy recovery system, 30% less electricity than traditional equipment
Super compatibility
Applicable materials: galvanized sheet, aluminum-magnesium-manganese alloy, color-coated sheet (yield strength ≤550MPa)
Intelligent error prevention
Laser thickness measurement + edge tracking, automatic deviation correction (accuracy ±0.5mm)
Minimal maintenance
Centralized lubrication system + roller self-cleaning groove, maintenance cycle extended to 400 hours.
Key application areas
Building steel structure
Industrial plant, storage and logistics center, prefabricated building
Infrastructure
Photovoltaic bracket, bridge maintenance platform, subway ventilation system
Special scenarios
Lightweight partition of ship cabin (corrosion-resistant purlin)
Data center cable tray (fireproof coating customization)
Installation And Operation Points
Basic Requirements
Concrete pedestal thickness ≥ 300mm, horizontal error < 1/1000
Safety Protection
Configured with photoelectric emergency stop (reaction time ≤ 0.1 seconds) + roller protection cover (opening and closing interlock)
Maintenance Core
Daily: roller groove cleaning + guide rail lubrication
Monthly: hydraulic oil filtration + bolt torque calibration
Annual: servo motor carbon brush replacement
https://www.jr-rollformingmachine.com/
