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  • Mechanical bar screens

    Mechanical bar screens

    DWA supplies Coarse & Fine mechanical automatic screens, double chain rakes rotation type, for grit chamber. All of equipment are made of stainless steel 304 or 316. Main chain for rake rotation is also made of stainless steel. PLC system is applied to automatic operation and interactive with auxiliary equipment. For the rake cleaning, a sludge scraper installed on the top of screen equipment. Installation inclination is 60. to 75°. Bar clearance is 25mm for coarse screens and 6mm for fine screens. Typical raking speed is 3m/min. The bar clearance, rake speed and others will be adjustable according to customer request. A wedge bar system will be applied to fine screen to avoid clogging of screenings passing through.