Vertical Pittsburgh Seam Closer, Pittsburgh Whisper Lock Machine
Pittsburgh Seam Closer / Whisper Lock machine Information
Whisper-Loc Seam Closer are available for the vertical close Pittsburgh seams. At the Pittsburgh joint, the individual seams are called Pittsburgh seam (Pittsburgh lock) and standing seam(right angle flange).
Whisper Lock machine Main parameters
Model |
Duct sizes (mm) |
Thickness (mm) |
Duct length (mm) |
Motor (KW) |
Weight (KG) |
Machine sizes (mm) |
VSC-1550J | >=150*150 | 0.5-1.2mm | 1000-1550mm | 3.0 | 700 | 110*950*2100 |
VSC-1550B | 0.5-1.5mm | 3.0 | 850 | 110*950*2100 |
Pittsburgh closer
Whisper Lock machine is also called Pittsburgh closer, General 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 lock forming machines. The Pittsburgh seam shows much better results and can also be used for a higher pressure.
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