HVAC duct line VI,the U-shaped structure not only saves the production site, but also reduces the delivery time of raw materials. The production efficiency is high (about 20-23 seconds per piece). The department fully automatically realizes the fixed size cutting, beading, automatic cutting ,the notching,pittsburgh forming, TDF flange and the angle iron flange ,automatically forming and bent into ”L“, ”U“, ”口“ shaped duct. Equipped with punching support air, common plate flange hole is optional.It has the advantages of high automation, high efficiency, labor saving and material saving.

Ventilation duct machine The air duct production line V is composed of feeding frame, leveling and beading, hydraulic punching point and square mouth, hydraulic shearer, movable pittsburgh forming machine,feeding platform, duplex flange machine, duplex angle iron flange machine (or double snap lock machine), servo feeding platform and TDF hydraulic folding. The computer control part adopts full computer control, bending with servo feeding, accurate positioning, especially when processing the bigger air duct, to ensure the bending accuracy.

TDF flange forming machine applies both sides feeding and simultaneously shaping work mode, one side forming and one side forming is for installing hooks. TDF folder is with hydraulic,pneumatic,manual type.

TDC Flange Forming machine is the advanced technique in the world to manufacture square duct.It realizes standard,automation and mass production during producing rectangle flanges.

HVAC square metal folding machine comes into being serialization,including hydraulic,pneumatic,manual，which offers customers many choices.

The spiral air duct machine is divided into molding type of rolling cutting and steel strip of saw cutting. The molding of corresponding size must be used for each size of spiral air pipe. For the steel strip type,adopt different specifications and lengths of steel strip, can process the corresponding size of air duct.

Circle angle iron forming machine employs coil  to form angle iron flange then cut off the processed work pieces with pleasant appearance and accurate dimensions. The equipment has advantage of compact structure and easy operation.Angle iron punching machine can be matched with the angle iron forming machine to produce perfect circle angle iron.

The 3-roller bending machine features the diamond structure and is used for thicker sheets. The upper roller can be lifted to facilitate plate removal.It is cut into two kinds:symmetric  and asymmetric.

With vertical structure, angle iron bender can bend various inner and outer angle iron. It also can roll round steel, round pipe,square pipe, U steel by changing rolling wheels. It is an ideal equipment for bending angle iron flange and section bars and widely used in construction, decoration, hardware, light industry, and chemical industries, etc.

Besides the advantages of spiral tube machine, Al foil tube machine also features good retractility and incurvating capability. It suits in ventilation systems as low demand on installation with much bending paths, such as kitchen, toilet.

Non-standard rolling forming machines, refer to the machine that customers can order according to their drawings and technical demands. It differs from the standard machine. Each machine has the separate section bending machine function.

This shelf-making rolling forming machine of shelf-bars presses cold metal sheets into bars of various shapes for the assembly of goods shelves is used in large supermarkets and supply chain storage.