DUCTFAB Pittsburgh Lock Closer – Electric Operated. There are two models-SC 10 with max capacity 1mm and SC 12 with max capacity 1.2mm.

They are the ideal machines for use with Lockformers/Rollformers for closing straight or curved Pittsburgh Lock seams on ducting. Automatically adjusts to the thickness of sheet metal. The Seam Closers/Lockers are powered by a 1400 watt speed adjustable motor, enabling the user to achieve high quality and tightly joined seams with ease.