China Liding LD-S01 Unistrut Channel Roll Forming Machine - Reliable Suppliers & Factory for 41x21mm and 41x41mm Channels
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.
3-Hour Fast Technical Response: 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
Q Which flange types do LIDING flange machines support?
LIDING provides full coverage for standard TDC flanges, high-efficiency GDF flanges, and heavy-duty PDF flanges. We manufacture all three major flange types in-house to meet various HVAC production requirements.
Q What is the advantage of the Patented Double-Coupled Duplex Design?
Our signature duplex design allows the machine to produce two flanges simultaneously. This doubles your production speed without requiring additional floor space, drastically improving workshop efficiency.
Q How does LIDING prevent air leaks in the produced flange joints?
We utilize precision-machined GCr15 rollers combined with laser alignment technology during manufacturing. This ensures exceptionally tight flange joints, reducing air leakage by 30% compared to standard machines.
Q Are the flange machines tested before they are shipped?
Yes, every LIDING flange machine undergoes a rigorous 100% full-load 8-hour production test before leaving our factory. We also provide a complete video report of the test run to ensure plug-and-play installation.
Q What kind of technical support does LIDING offer?
We offer a 3-hour fast technical response. Our support team provides immediate video solutions for troubleshooting. For complex issues, we can dispatch our engineers directly to your facility worldwide.
Q What is the production process of your roll forming machine?
The standard automated workflow includes: Decoiling → Automatic Leveling & Feeding → Continuous Roll Forming → Integrated High-Speed Punching → Hydraulic Precision Cutting → Finished Unistrut Channel Discharging.