Iowa Precision Whisper-Loc Seam Closing Machine

The Iowa Precision Whisper-Loc Pittsburgh Seam Closing Machine is the quiet, automated way to close Pittsburgh seams in less than six seconds. This machine seams from top and bottom to the middle to avoid run out and incomplete seaming and eliminates hammering to close ductwork seams — greatly reducing noise levels and speeding up duct seam closing in your shop or at the job site. The Whisper-Loc will also close both insulated and reinforced ductwork.

New call-to-action



Duct Length

Motor / Voltage

Dimensions / Weight

Model FAH 3456-H

18 gauge

3' (914mm), 4' (1,219mm), 5' (1,524mm), 6' (1,829mm)

2 hp - 220/1/60

Length: 96"

Width: 35"

Height: 32.5"

Weight: 2,400 lbs.


Iowa Precision | Pro-Fabriduct HVAC Full Coil Line with CornermaticPlus and CornerMatic WhisperLoc Combination Machines | Testimonial: Mid-Atlantic Mechanical


Iowa Precision | Dual-Head Cornermatic and Whisper-Loc | Testimonial: Custom Sheet Metal Services


Iowa Precision | Dual-Head Cornermatic and Whisper-Loc | Demonstration

Related Iowa Precision Products