Portable Manual Round Duct Forming Machine from China | Fast 30s Forming | Suppliers & Factory | φ100-300mm
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
Step 1
Cut metal sheet to required size
Step 2
Insert sheet into machine feeding slot
Step 3
Operate lever to form
Step 4
Remove finished round duct
Frequently Asked Questions
What sizes of ducts can the LIDING flange machine handle?
The machine comes pre-loaded with standard mold sizes ranging from φ100mm to φ300mm. You can switch between sizes in less than 60 seconds without needing complex tools.
Does this machine require electricity or an air compressor?
No, it features a pure mechanical lever design that runs entirely by hand. It is perfect for remote sites, basements, rooftop work, or emergency repairs during power outages.
How fast can it form a round duct?
It can form a perfect, smooth round duct in just 30 seconds. This is up to 5 times faster than traditional manual methods using a hammer.
Is the LIDING flange machine portable for one person?
Yes, it is designed to be compact and lightweight. A single operator can easily lift it into a pickup truck, move it through hallways, and it takes up less than 1 square meter of workspace.
What is the standard production process?
The process is straightforward: 1. Cut the metal sheet to the required size. 2. Insert the sheet into the machine feeding slot. 3. Operate the lever to form. 4. Remove the finished round duct.

