With the Seam Locker machine, seamlocking ducts have become an easy task to perform. Cape Sheet Metal Works’ Whisperlock Pittsburgh seamlocker shows a much better result than the manual locking method and can also be used for a higher pressure duct system.
Now, no manual labour is involved in the actual locking of ducting. The already-folded duct comes off the Autofolder line straight to the seamlocker where it gets seamlocked in lightning speed.