A screen changer which can handle any contamination types, with reduced losses and low maintenance costs, recognized as the cheapest in the market. Choosing the right screen changer is easy, just list:
|Screen diameter||Active filtration area|
|325 mm||779 cm2|
|400 mm||1206 cm2|
|500 mm||1912 cm2|
|600 mm||2776 cm2|
|700 mm||3796 cm2|
Two blades scrape the contamination from the screen and the blade-holder collects internally the plastic material and contamination, which is then automatically discharged from the frontal valve.
The pressure set-point is programmed on the touch screen; when this is reached, the blade-holder slowly starts to turn (rotation speed is adjustable) and collects internally the contamination, which is then discharge by the discharge valve only when the round is complete (so, not during cleaning). Also the discharge timeframe can be adjusted to limit the waste amount.
In case of higher contamination levels the pressure-based operation is not enough. Just by turning a switch to continuous mode, the blade holder slowly scrapes continuously the screen’s surface. The discharge valve is then opened via a timer, which keeps the valve open for the set timeframe.
The same screen changer can also be operated in backflush mode if necessary, just by replacing the three components (of the scraping operation) with the ones for the backflushing operation, then switching to backflush mode on the touch screen.