Liding LD-S01 Unistrut Channel Roll Forming Machine - High Precision, Heavy Duty, China Suppliers & Factory
Why Do HVAC Professionals Worldwide Choose LIDING Flange Machines?
After 30 years in the cold roll forming industry, we’ve sold over 1,200 flange machines to 30+ countries. Here’s why 90% of our customers come back for repeat orders:
Full GDF/TDC/PDF Flange Series Coverage
We’re one of the few manufacturers that make all three major flange types in-house. Whether you need standard TDC flanges, high-efficiency GDF flanges, or heavy-duty PDF flanges, we have a ready-to-ship machine for you. No more dealing with multiple suppliers.
Patented Double-Coupled Duplex Design
Our signature duplex flange machines produce two flanges simultaneously, doubling your production speed without increasing floor space. This design has been tested and proven by over 500 HVAC factories worldwide, including our US customer who runs it 16 hours a day, 6 days a week.
Tighter Flange Joints = No Air Leaks
We use precision-machined GCr15 rollers and laser alignment technology to ensure every flange joint is perfectly tight. Our customers report 30% less air leakage compared to machines from other suppliers, which means their HVAC systems are more energy-efficient and pass all inspections.
100% Full Load Testing Before Shipment
Every Liding flange machine runs a full 8-hour production test before it leaves our factory. We send you a complete video report showing the machine in action, so you know exactly what you’re getting. No surprises, no assembly headaches, just plug and play.
We have a dedicated technical support team that responds to all inquiries within 3 hours. If you ever have a problem with your machine, we’ll send you a video solution immediately. For complex issues, we can send our engineers to your factory anywhere in the world.
Standard Production Process
Frequently Asked Questions
LIDING is one of the few manufacturers capable of producing all three major flange types in-house: standard TDC flanges, high-efficiency GDF flanges, and heavy-duty PDF flanges, offering complete series coverage.
Our signature duplex design produces two flanges simultaneously. This doubles your overall production speed without requiring additional floor space, making it highly cost-effective and space-saving.
We utilize precision-machined GCr15 rollers combined with advanced laser alignment technology. This ensures perfect tightness, resulting in 30% less air leakage compared to standard machines on the market.
Yes. Every Liding flange machine undergoes a rigorous 100% full load 8-hour production test before leaving our factory. We provide you with a comprehensive video report so it is completely plug-and-play when it arrives.
We provide a guaranteed 3-hour fast technical response. Our support team will provide video solutions immediately, and we can dispatch engineers globally for complex on-site issues.
The workflow follows a fully automated process: Decoiling → Automatic Leveling & Feeding → Continuous Roll Forming → Integrated High-Speed Punching → Hydraulic Precision Cutting → Finished Unistrut Channel Discharging.