The Holden engine company had a large dust collector with excess capacity. They had also chosen to improve the working environment for the employees working in the furnace area. However, the dust collector and furnaces were some distance apart and separated by a road. Moving the dust collector was impractical.
Mideco designed, manufactured, and installed a duct system. Duct diameter 2.6m, height from the ground 20m, clear span across the roan 30m.