Here is the English translation of the introduction to the manual quick-change C-section steel roll forming machine:
I. Equipment Definition
The Manual Quick-Change C-Section Steel Roll Forming Machine is a cold roll forming system that uses manual die-changing operations to process C-section steel profiles of varying specifications. Designed for small-batch, multi-size production, it enables rapid switching between different C-section dimensions (e.g., C80/C100/C120) through manual adjustment of roll tooling. It serves as a cost-effective flexible solution for steel structure construction and rack manufacturing.
III. Workflow
mermaid
graph LR
A[Loading] --> B[Manual Threading] --> C[Die Selection] --> D[Roll Locking] --> E[Width Calibration] --> F[Roll Forming] --> G[Length Cutting] --> H[Output]
IV. Key Technical Features
1. Cost Efficiency Advantages
Lower equipment cost: No hydraulic/electrical changeover systems (Price typically ≤ ¥250,000 vs. ≥¥600,000 for auto systems)
Reduced tooling expense: Universal base + interchangeable roll discs cut die costs by 40%
Simplified maintenance: Fewer failure points without complex hydraulics
2. Flexible Production Capability
Quick changeover: Switch C-section sizes (e.g., C80→C120) in ≤15 minutes
Material versatility: Processes 0.8-2.5mm galvanized steel, prepainted steel, aluminum
Small-batch friendly: Minimum economical batch: 5 tons (vs. 20+ tons for auto lines)
V. Typical Applications
1. Target Industries
Light steel structure buildings (roof purlins/wall beams)
Storage racks (uprights/beams)
Cable tray support systems
Agricultural greenhouse frames
2. User Profile
Small steel fabricators: Diverse orders, small batches (<50 tons)
Start-up metal workshops: Initial budget < ¥300,000
On-site construction teams: Requiring portable, easy-install equipment
VI. Manual Changeover Procedure (Key Steps)
1. Shutdown & Removal:
Loosen roll set positioning bolts
Slide out old dies along guide rails
2. New Die Installation:
Load corresponding roll discs (fool-proof design)
Tighten bolts to uniform torque
3. Width Calibration:
Adjust side rolls via handwheel to scale-marked width
Verify roll gap uniformity with feeler gauges
4. Trial Run & Verification:
Run at low speed, measure first-piece dimensions
Adjust roll pressure screws until tolerance ≤±0.3mm
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