Liding Hot Sale Spiral Round Duct Forming Machine | 16kw Total Power for HVAC Systems

We’ve been making duct equipment for over 20 years, and this spiral duct machine is exactly what small-to-medium duct fabricators and construction teams have been asking for. It replaces the old manual seamed iron pipes that leak air and take forever to make—fully mechanized production, no hand tapping, no welding, no leaks. It’s tough, easy to run, and even fits on a truck to go straight to the job site.

30 +

Years of Experiences

500+

clients worldwide

certification

Fully Automatic PLC Control

Touch screen operation, one worker can handle the whole process

Wide Production Range

Makes Φ100-Φ1500mm spiral ducts in one machine

High-Speed Production

0-35m/min adjustable feeding speed, meets tight deadlines

On-Site Construction Ready

Compact and mobile, produce ducts directly at the project site

lidingVideo

lidingTechnical Specifications

TDC Forming Machine	Basic Model	Upgrade Options
Raw Material	Galvanized steel 0.5-1.0mm	Φ100-Φ2000mm (as designed)
Forming Station	10 stations	13 stations（or As actually designed）
Driving System	Gear + Chain Drive	Full gearbox drive (Optional)
Cutting Way	Saw blade cutting	Servo flying cut (Optional)
Locking Method	Pipe outer surface locking	Inner surface locking (Optional)
Sealing mastic Injector	No	Yes
Forming Speed	0-35(m/min)	0-40 (m/min)
Roller Material	GCr15 steel	Cr12mov (Optional)
Main Motor Power	5.5 kw	7.5kw (or as designed)
Voltage	380V 50Hz 3 Phases	As requested
Shaft Diameter	Φ100-Φ1500mm	Φ100-Φ2000mm (as designed)
Net Weight	1800 kgs	Customized as per design
PLC Brand	Imported brand	Siemens (or as request)
Overall Dimension (LWH)	2700-1700-2300mm	Customized as per production demand
Cutting Blade Material	Cr12mov, quenched HRC60-62°	Customized hardened steel
Material Strip Width	137-140mm	Customized as per requirement
Finished Tube Length	800-1200mm	Customized length
Customization	Logo, packaging, mold	Full machine customization
Discharge Method	Automatic roll out	Automatic stacking (Optional)

product details

lidingWhy do professionals choose LIDING flange machines?

Patented mold saves you time and material

We designed our own patented mold system—no more struggling with complicated mold changes that take half a day. Switching between different duct diameters takes just minutes, and the precision design cuts down on scrap material by up to 15%. Over a year, that adds up to real savings on your steel costs.

High-speed synchronous cutting that never messes up

The integrated high-speed cutting system runs perfectly in sync with the feeding speed, so you never get crooked cuts or stuck material. It cuts clean, burr-free edges every single time, no extra sanding or trimming needed. Crank the speed up to 35m/min when you’re up against a deadline, and it’ll keep up without breaking a sweat..

Dead simple to operate, no pro skills required

The intuitive touch screen PLC console makes this machine a breeze to run. A regular worker can master it in 30 minutes of training—no need to hire expensive specialized technicians. All parameters are clearly displayed, and you can save common duct sizes as presets for one-click production.

Tough enough for the job site, not just the workshop

Metal coil loading → Automatic feeding and guiding → Spiral roll forming → Continuous outer surface locking → High-speed synchronous fixed-length cutting → Automatic roll out → Finished spiral duct.

Standard Production Process

Manual Coil Feeding → Automatic leveling and straightening → 10-station continuous roll forming → Hydraulic precision cutting → Finished air duct/flange discharging

lindingApplicable Industries & Application Scenarios

This high speed automatic duct line is widely used in:

On-Site & Custom Projects

● Construction site prefabrication, renovation projects, and small-batch custom duct manufacturing.

Commercial & Civil HVAC

● Office buildings, hotels, hospitals, shopping malls and residential central air conditioning ducts.

Fire Protection & Prefabrication Projects

● High-rise buildings, underground garages and industrial plants fire smoke exhaust duct production.

Industrial Ventilation & Dust Removal

● Factory workshops, warehouses, mining sites ventilation, dust extraction and bulk material conveying pipes.