Andersson Stair Screen moving bar step fine screen explained. Still since 30 years the only 1-6mm fine screen that fits any existing coarse screen channel hydraulics with up to 1m/s channel velocity. Automatic bottom seal flap. No weak sharp pointed bar ends needed to actuate the flap. Massive fully side supported bars in stainless steel block guided low friction bottom step. No weak grit catching plastic spacers in the bottom grit subjected zone.
Stair Screen 3mm as Septic Sludge Receiver SSR takes a beating from 2 by 4 wood. 1-6mm Stair Screens does NOT require any 20-30mm coarse pre screening. By using Stair Screens a whole screening stage can be saved compared to perforated screens or other fine screens!
Screenings mat discharge into conveyor. No scrapers, No brushing, No flushing. Intermittent step by step level control enables screenings mat precoat and high separation. This cannot be achieved by traditional rake or perforated screens. Stair Screen screen surface (the moving bar set) consists only one moving part. No hinges, No seals, No chains.
Stair Screen ASS 3mm as Septic Sludge Receiver SSR handling 1.5-3m3/min 25-50l/s of >2-4% ds concentrated import sludge septic and stored from surrounding plants and sludge separators. Spraying only to pre wash screenings
Stair Screen ASS 3mm as Septic Sludge Receiver SSR handling >2-4% ds concentrated import sludge septic and stored from surrounding plants and sludge separators. Spraying only to pre wash screenings
Wash Press Compactor WPC strong brushed fully perforated thick plated inlet perfo bottom gives high grit, wash, press, drain capabilities. S355J steel screws is much stronger against wear than stainless
Band Screen TFS
Grit Washer Classifier GWC
Band Screen TFS, Spiral Screw Conveyor SSC, Wash Press Compactor WPC
Chain Rake Screen CRS the strongest rake screen on the market