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Trumpf F301 Seam Locker

Category: Standard lead time may apply

Trumpf F301 Seam Locker


Product details


The Trumpf F301 Seam Locker is ideal for closing Pittsburgh lock seams on straight or curved ducts with sheet thicknesses of 0.45 mm – 1 mm for mild steel. There is no need for refitting when processing formed or folded pieces. The adjustment to the sheet thickness is automatic and the forward feed guarantees a consistent and tight fold.



  • Easy to use
    • Close formed or folded pieces without refitting the machine.
  • Flange height and sheet thickness
    • Suitable for flange heights of 8 mm – 11 mm and for sheet thicknesses of 0.45 mm – 1 mm.
  • Excellent process reliability
    • Automatic adjustment to the sheet thickness gives you consistent seam results.
  • Area of application
    • Lock seams on straight and curved ducts.


Suggested Applications

  • For closing Pittsburgh lock seams.
    • On straight or curved ducts with flange heights of 9 mm – 13 mm and sheet thicknesses of 0.75 mm – 1.25 mm for mild steel


To see Technical Data Sheet, click on image below.

F 301 Seam Locker 1


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Additional information

Maximum sheet thickness, steel 400 N/MM squared (MIN.)

0.45 mm

Maximum sheet thickness, steel 400 N/MM squared (MAX.)

1 mm

Flange height (B) with sheet thickness 0.45 - 1.0

8 – 11 mm

Smallest inner radius (performed)

150 mm

Smallest outer radius

300 mm

Working speed

4 m/min – 7 m/min

Nominal power consumption

555 W

Weight without cable

5.2 kg