Rectangular duct reducer, centred: flat patterns
A rectangular duct narrows evenly on both sides while its height stays the same, with a straight run at each end. It is built from four plates: the top and the bottom cut to the taper's outline, and two sides bent where the taper starts and ends.
A rectangular duct narrowing evenly on both sides, of one height, with straights at the ends; four plates.
Sizes you enter
- Wide end (W): Across the wide end, seen from above, on the surface chosen under Sheet.
- Narrow end (w): Across the narrow end, seen from above, on the surface chosen under Sheet.
- Height (H): Across the duct, seen from the front, the same all along.
- Length (L): End to end, along the duct.
- Straight, wide end (E1): Straight run at the wide end, before the taper starts. 0 for none.
- Straight, narrow end (E2): Straight run at the narrow end, after the taper ends. 0 for none.
What you get
The exact flat pattern of the part, worked out for the sheet thickness measured on the inside, the mean or the outside, with numbered press lines, the part in 3D, its weight and cutting length, and a DXF for laser, plasma or waterjet cutting (STEP as well).