The EBR METAL round duct elbow machine flanges the segments of gored elbows and closes their seams, and it builds other round fittings the same way. Standard diameters run from Ø125 to Ø1250 mm, and an adapter set takes it down to the Ø100–125 mm range. A Ø200 mm 90° elbow in four segments takes about 2 minutes. Our catalogue lists it as the Elbow Maker Machine (EMM). It credits the machine with large time savings, consistently high seam quality and economical production.
General Features
- Produces gored elbows and various fittings by flanging and seam closing
- Diameter range Ø125–1250 mm, adapter set for Ø100–125 mm
- Three flange height options: 5, 7.5 and 10 mm
- Sheet thickness 0.5–1.5 mm galvanized and 0.5–1.0 mm stainless
- A Ø200 mm 90° four-segment elbow in approx. 2 minutes
- Minimum air pressure 6 bar, air consumption 9 L/min, 4 kW power
Technical Specifications
| Model | Diameter range (mm) | Sheet thickness, galv. (mm) | Sheet thickness, stainless (mm) | Flange height options (mm) | Power (kW) |
|---|---|---|---|---|---|
| EMM | 125–1250 | 0.5–1.5 | 0.5–1.0 | 5 / 7.5 / 10 | 4 |
| Model | Electricity (V/Ph/Hz) | Air pressure (bar) | Hydraulic oil (L) | Dimensions W × H × L (mm) | Weight (kg) |
|---|---|---|---|---|---|
| EMM | 380 / 3 / 50–60 | 6–8 | 90 | 980 × 1100 × 2800 | 850 |
Further specifications: minimum air pressure 6 bar · adapter set for Ø100–125 mm · air consumption 9 L/min · Ø200 mm 90° four-segment elbow ≈ 2 min.
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.
Where It Fits in Your Duct Line
Straight round duct comes from the Spiral Duct Machine. This elbow making machine produces the bends and fittings that connect those runs. Transitions between round and rectangular duct are formed on the Rectangular to Round Converter. The HVAC Duct Production Line page shows where round fittings sit in a complete duct shop.
How many gores an elbow needs, how the seams are locked and sealed, and the common defects are covered in our guide How Round Duct Elbows Are Made (Gore Elbows).
Frequently Asked Questions
Which elbow diameters can it produce?
Ø125 to Ø1250 mm as standard. An adapter set covers Ø100–125 mm.
Which materials and thicknesses does it handle?
Galvanized sheet from 0.5 to 1.5 mm and stainless sheet from 0.5 to 1.0 mm.
Which flange heights can it form?
Three options: 5, 7.5 and 10 mm.
How long does one elbow take?
A Ø200 mm, 90°, four-segment elbow takes approximately 2 minutes.
What utilities does the elbow machine need?
A 380 V, 3-phase, 50–60 Hz supply (4 kW) and compressed air at 6–8 bar (minimum 6 bar) with about 9 L/min consumption. The hydraulic system holds 90 L of oil.