China Manual Round Duct Forming Machine | 30s Fast Forming by Top Suppliers | Ideal for Tight Spaces & On-Site Use
30
+
Years of Experiences
clients worldwide
certification
LIDING Why do professionals choose LIDING flange machines?
One machine covers all common sizes, no more tool clutter
We’ve pre-loaded all the standard mold sizes you’ll ever need for daily jobs, from φ100mm to φ300mm. Switching between sizes takes less than 60 seconds — no complicated tools, no downtime, no more hauling 5 different machines to the job site. It’s the only duct forming tool you’ll need for most residential and commercial projects.
Works anywhere, even when the power is out
No electricity? No air compressor? No problem. The pure mechanical lever design runs entirely by hand. It’s perfect for remote construction sites, basement renovations, rooftop work, and emergency repairs during power outages. You’ll never have to pause a job again just because there’s no power outlet nearby.
Blazing fast, saves you hours of backbreaking work
Form a perfect, smooth round duct in just 30 seconds. That’s 5x faster than beating metal with a hammer all day. What used to take a full day of exhausting manual labor now takes 2 hours. Your crew will finish jobs faster, take on more work, and go home less sore at the end of the day.
Light enough for one person to carry and use
We designed this machine to be as compact and lightweight as possible. One person can lift it into the back of a pickup truck, roll it down a narrow hallway, or carry it up a flight of stairs. It takes up less than 1 square meter of space, so it won’t get in the way on crowded job sites.
Standard Production Process
1 Cut metal sheet to required size
2 Insert sheet into machine feeding slot
3 Operate lever to form
4 Remove finished round duct
Frequently Asked Questions
What duct sizes can the LIDING flange machine handle?
The machine comes pre-loaded with standard mold sizes ranging from φ100mm to φ300mm. This wide range covers most common residential and commercial duct forming requirements.
How long does it take to switch between different mold sizes?
Switching between standard mold sizes takes less than 60 seconds. The process requires no complicated tools, minimizing downtime during transitions.
Does this machine require electricity or an air compressor to operate?
No, it does not. The machine features a pure mechanical lever design that runs entirely by hand, allowing you to operate it on remote sites, basements, or during power outages.
How fast can it form a finished round duct?
It takes approximately 30 seconds to form a perfect, smooth round duct. This is up to 5 times faster than traditional manual forming methods.
Is the LIDING flange machine easy to transport to job sites?
Yes, it is designed to be compact and lightweight enough for one person to carry. It occupies less than 1 square meter of space, making it easy to fit into a pickup truck or move through narrow hallways.
What is the basic operational process for forming a duct?
The process consists of four simple steps: Cut the metal sheet to the required size, insert the sheet into the machine's feeding slot, operate the mechanical lever to form, and then remove the finished round duct.

