1. Equipment Overview
The Manual C/U Purlin Roll Forming Machine** is a cost-effective metal cold-forming machine primarily used to produce C-section and U-section purlins for steel structure buildings. Compared to automatic mold-changing models, this machine requires manual mold adjustment** to switch between different purlin specifications, making it suitable for small-to-medium-scale production or diversified order requirements.
2. Machine Components
1. Uncoiler (Decoiler: Supports metal coils (e.g., galvanized steel, color-coated steel) with manual or simple hydraulic adjustment.
2. Leveling Device: Flattens the coiled material to ensure smooth forming.
3. Manual Feeding System: Uses gear or chain transmission with operator assistance (some models may include a basic servo feeder).
4.Roll Forming Unit:
Multiple sets of rollers progressively shape the metal into C/U sections.
Manual Mold Change: Requires manual disassembly and replacement of rollers to adjust for different specifications (e.g., height, thickness).
5. Cutting System:
Hydraulic shear or pneumatic cutting for manual length control.
6. Basic Control Panel**: Adjusts speed, length, and other parameters (some models include a counting function).
3. Workflow
1. Manual Loading → 2. Leveling → 3. Operator-Assisted Feeding → 4. Roll Forming → 5. Manual Mold Change (for specification switching) → 6. Cutting → 7. Finished Product Collection
4. Technical Specifications (Typical Values)
Material Compatibility: Galvanized steel, aluminum, thickness 0.5-2.5mm (depending on machine strength).
Purlin Height: 50-200mm (common specifications).
Forming Speed: 5-15 meters/minute (dependent on operator skill).
Mold Change Time: ~15-30 minutes (requires tools).
Power Supply: 380V three-phase, 5-15kW power consumption.
5. Key Features
Low Cost: Priced at 1/3-1/2 of automatic mold-changing models, ideal for budget-conscious businesses. Flexible Adaptation: Can produce different C/U purlin sizes by changing molds (requires downtime). Simple Structure**: Easy maintenance and low failure rate. Small-Batch Advantage: Suitable for custom orders or temporary specification changes.
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