Mechanical grilles serve as essential pre-treatment equipment in sewage treatment systems, designed to intercept solid impurities including branches, plastic bags, and debris from wastewater. This critical function prevents these materials from entering subsequent treatment units, eliminating potential blockages or damage to pumps, pipelines, and other vital equipment.

This drum spiral type equipment features a round screening drum as the primary screen surface, installed in the canal at a precise 35° angle with the horizontal plane. When sewage flows into the screening drum from the screen end, debris larger than the screen gap is effectively intercepted and settles on the inner surface.

The entire screening drum rotates continuously via motor drive, while a specialized removal brush at the top cleans the screening surface with an integrated flushing mechanism. Intercepted materials are efficiently flushed into the central material groove, lifted by a conveying screw rod, and discharged through a material box or conveyor after thorough squeezing and dewatering.

• Compact machine structure with minimal footprint for simplified installation, operation, and maintenance
• Adjustable grizzly bar gaps with 1mm-5mm design range for versatile applications
• High trash interception efficiency with enclosed conveyance system to prevent environmental contamination
• Fully automatic control capability ensuring smooth operation with low energy consumption and minimal noise
• Self-cleaning operation prevents clogging during continuous 24/7 use