Portable Manual Round Duct Forming Machine | No Power, 30s Fast Forming | φ100-300mm

Forget the backbreaking, time-consuming manual hammering on construction sites. This Liding manual round duct former is exactly what every HVAC technician and on-site crew has been begging for. No electricity, no air compressor, no bulky equipment — just one person, one machine, and a perfect round duct in 30 seconds. It’s the ultimate solution for on-site fabrication, emergency repairs, and tight spaces where big machines can’t reach.

30 +

Years of Experiences

500+

clients worldwide

certification

Liding Vertical Foot-Operated Stainless Steel Duct Flaring Machine (1).jpg

Multi-Size Interchangeable Molds

Pre-equipped with standard mold sets, supports φ100mm to φ300mm round duct forming

100% Manual, No Power Required

Lever-operated mechanical structure, no external electricity or air supply needed

30 Seconds Ultra-Fast Forming

80% more efficient than traditional manual hammering, cuts construction cycle drastically

Lightweight & Ultra-Portable

Single-person operation, minimal space requirement, easy to move around job sites

lidingVideo

lidingTechnical Specifications

TDC Forming Machine	Basic Model	Upgrade Options
Shaft Diameter	φ100mm – φ300mm	φ300mm – φ500mm extended mold set
Raw Material	Aluzinc / Galvanized steel / Color steel coil	Stainless steel coil (customizable)
Feeding Thickness	0.4–0.6 mm	0.4–0.8 mm (as request)
Forming Time Per Duct	30 seconds	as request
Efficiency Improvement	80% vs traditional manual hammering	as request
Operation Mode	Manual lever operation	as request
Standard Mold Sets	φ100, 125, 150, 200, 250, 300mm	Custom special size molds
Main Motor Power	4 kw	5.5kw (or as designed)
Power Requirement	None	As requested
Mold Switching Time	< 1 minute	Customized
Net Weight	85 kg	Customized as per design
PLC Brand	PLC with touch screen	Siemens (or as request)
Overall Dimension (LWH)	1200-600-1100mm	Customized as per production demand
Customization	Logo, packaging, mold	Full machine customization

product details

lidingWhy 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

Cut metal sheet to required size → Insert sheet into machine feeding slot → Operate lever to form → Remove finished round duct

lindingApplicable Industries & Application Scenarios

This versatile manual duct former is a must-have for all HVAC and construction teams, widely used in:

On-Site HVAC & Fire Construction

● Commercial buildings, residential complexes, industrial plants on-site round duct fabrication.

Emergency Repair & Maintenance

● Urgent duct repairs, power outage situations, post-disaster ventilation restoration.

Small Batch Custom Production

● Building material shops, small duct workshops custom order processing.

Tight & Remote Locations

● Basements, rooftops, narrow corridors, and remote sites where large machines cannot access.