Vertical Duct Seam Closing Machine

Model No.: VWSC-1600

Style: Verical

Thickness Range: 0.4-1.2mm

Duct Length: 1200-1550mm

Speed: 24m/min(78 FPM)

Supply Ability: 10 Sets per Month


Payment Terms: T/T,L/C

Vertical duct seam machineProducts Information

Generally,three different seams are common in the industry to connect the corners of the ducts:button lock seam,Pittsburgh seam and Duct seam.Button snap lock and Pittsburgh lock can be produced on the Comifo lock forming machines.The Pittsburgh seam shows much better results and can also be used for a higher pressure.

Vertical duct seam closing machine is what we highly recommend.Pittsburgh joint is commonly used to join the seams of metal ducts. Seam closing has traditionally been accomplished by manually hammering the margin of the seam against the duct wall (peening). Disadvantages of such peening include the time required and the almost intolerable noise produced.

The latest design in seaming technology is now available. At the Pittsburgh joint, the individual seams are called Pittsburgh seam(pittsburgh lock) and standing seam(right angle flange). On a Pittsburgh joint, the operator pushes the standing seam into the Pittsburgh seam, fastens them to each other and closes the joint on a seam machine.

Vertical duct seam closing machine Configuration

Model No.


Thickness Range

Duct Length





24m/min(78 FPM)

Comifo Group specializes in air duct machinemanufacturing, contracting and selling HVAC air conditioning equipments, HVAC machinery, valve and actuators,air duct machine,air duct manufacturing.

Comifo Duct Manufacture Machine Co., Ltd is one of Comifo group member, the leading company which specializes in machine manufacture, involving in Heating, Ventilation and Air Conditioning (HVAC) fabrication, cable tray fabrication, coil processing, roll forming, etc.

With its advanced technology, Comifo grows to be a company of designing, manufacturing and selling air duct machine,air duct manufacturing machines to customers all over the world, from whom we obtain reputation and precious improvement advice to meet the world’s verifying technology. This is so called INNOVATION, the spirit of the ever-lasting development of a company, impresses the world of machinery.

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