The Duct Seam Closer is a seam closer machine for the locks of square and rectangular ducts. Closing the lock by machine instead of by hand is quick and saves labor and time. The machine runs at 9 m/min on galvanized sheet from 0.5 to 1.2 mm and stainless sheet from 0.5 to 0.7 mm (catalogue: Seam Closer, SCM).
General Features
- Closes the locks of square and rectangular ducts quickly and easily
- Zipping system closes the lock along the duct
- Seaming rolls made of 2379 cold work tool steel with high abrasion, wear and pressure resistance
- Duct passage points (side support extensions and side support plates) resist scratching, corrosion and wear
- Machine guards and sheet end passages made of stainless steel sheet
- Works with galvanized and stainless sheet
Technical Specifications
| Model | Voltage-Frequency (V/Ph/Hz) | Sheet thickness (mm) | Operating speed (m/min) | Power (kW) | Current (A) | Dimensions W × L × H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| SCM | 380–400 V / 3 Ph / 50–60 Hz | 0.5–1.2 galvanized; 0.5–0.7 stainless | 9 | 3 | 7.2 | 800 × 4700 × 1000 | 810 |
Sheet thickness capacities are given for ST37 (S235JR) mild steel, yield strength 235 N/mm² (24 kg/mm²). EBR METAL reserves the right to change models and technical specifications without prior notice.
What the Seam Closer Machine Does in Your Duct Line
Duct parts reach the seam closer once they are cut and folded and their lock profile has been rolled on the Pittsburgh Lock Former. Then the SCM zips the lock closed along the duct. For Pittsburgh locks on elbows as well as straight duct, see the Pittsburgh Seam Closer. The full sequence is on the HVAC Duct Production Line page.
To see how the lock you are closing is formed and when it needs sealing, read our guide Pittsburgh Lock Seam Explained.
How this machine compares with the Pittsburgh Seam Closer and with hand closing is explained in Seam Closers: Pittsburgh Seam Closer vs Duct Seam Closer.
Frequently Asked Questions
Which materials and thicknesses can this duct seaming machine handle?
Galvanized sheet from 0.5 to 1.2 mm and stainless sheet from 0.5 to 0.7 mm.
How fast does it close seams?
The operating speed is 9 m/min.
What power supply does it need?
380–400 V, 3-phase, 50–60 Hz. The motor is 3 kW and the current is 7.2 A.
What are the seaming rolls made of?
2379 cold work tool steel, chosen for its resistance to abrasion, wear and pressure.