China 2-in-1 PDF20/30 Flange Roll Forming Machine | Reliable HVAC Square Duct Flange Maker from Top Suppliers & Factory
30
+
Years of Experiences
clients worldwide
certification
LIDING Why do professionals choose LIDING flange machines?
One machine does two jobs, cuts your costs in half
No more buying two separate machines for PDF20 and PDF30 flanges. This single unit switches between the two sizes in minutes, saving you thousands of dollars in equipment costs and precious workshop space. It’s the most cost-effective solution for mixed-batch duct production.
36 precision rollers make perfect flanges every time
We use 36 sets of precision-machined Cr12 steel rollers, heat-treated to HRC55–57° for maximum wear resistance. The multi-stage forming process ensures flat, straight flanges with tight, leak-proof joints. No more bending, no more rework, no more wasted material.
Built like a tank for nonstop daily use
This machine is overbuilt to handle 8-hour nonstop production. The 40mm thick solid side plates and heavy-duty frame eliminate vibration and shaking. The 45# steel quenched spindles and high-quality bearings run smooth and quiet, with minimal maintenance required.
Dead simple to operate, no fancy skills needed
The control panel is straightforward with just three main functions: forward, reverse, and emergency stop. Any worker can master it in 15 minutes, no special training required. We also include free wearing parts with every machine and provide lifetime technical support.
Standard Production Process
1 Galvanized Steel Coil Loading
2 Automatic Feeding & Leveling
3 36-Set Continuous Roll Forming
4 Precision Fixed-Length Cutting
5 Finished PDF Flange Discharging
Frequently Asked Questions
Q: How does the LIDING flange machine cut equipment costs in half?
The LIDING flange machine is a 2-in-1 unit that can switch between PDF20 and PDF30 flange sizes in minutes. This eliminates the need to purchase two separate machines, saving you thousands of dollars in equipment costs and valuable workshop space.
Q: What materials are used for the forming rollers?
We use 36 sets of precision-machined Cr12 steel rollers. They are heat-treated to HRC55–57° to ensure maximum wear resistance, enabling the production of flat, straight flanges with tight, leak-proof joints.
Q: Is the LIDING flange machine suitable for continuous daily production?
Yes. The machine features 40mm thick solid side plates, a heavy-duty frame to eliminate vibration, 45# steel quenched spindles, and high-quality bearings. It is designed to handle 8-hour nonstop daily production with minimal maintenance.
Q: How easy is it to operate the machine?
The machine is dead simple to operate. The control panel features three main functions: forward, reverse, and emergency stop. Any operator can master it in 15 minutes without needing specialized training.
Q: What is the standard production process of the LIDING flange machine?
The process consists of five main steps: Galvanized Steel Coil Loading → Automatic Feeding & Leveling → 36-Set Continuous Roll Forming → Precision Fixed-Length Cutting → Finished PDF Flange Discharging.
Q: What kind of technical support and parts are provided?
We include free wearing parts with every machine purchase and provide lifetime technical support to ensure your production line runs smoothly and without unexpected interruptions.