DUO is designed to create minimal waste, even with highly contaminated materials.
Inside the filtration chamber are two filters (laser or punched). Between the two filters is the scraper disc that collects the contamination and conveys it to the discharge screw for expulsion.
The speed of the impeller and the screw are adjustable.
The screw rotates independently of the scraper disc, and in this way the reject can be minimised depending on the contamination.
DUO generates up to 45% less waste than the valve system, saving on disposal costs.