Catenary Chain Rake
Catenary Chain Rake Bar Screen
Model SYBS | Front-Cleaned
This mechanical Catenary Bar Screen replicates the same principles as a front-cleaned Chain Rake. The chains and rakes are specially engineered to hang free inside the water channel and employ their own weight to engage the screen bars at the channel bottom and effectively remove the debris from the channel before it can damage pumps and other downstream equipment.
The Model SYBS bar screen’s unique, free hanging, design eliminates submerged water parts like shafts, bearings and sprockets and is virtually "jam-proof". This feature makes it an ideal Chain Rake Bar Screen for applications when equipment sits idle for long periods and instant start-up operation is required. It is a highly efficient Chain Rake for high water-flow with variable debris removal demands and solidly designed and manufactured to deliver long service life.
The Catenary Screen comes equipped with a bar rack, beaching plate, multiple rakes, rake wiper, drive chain, upper sprockets, chain return guide rail, shafting, bearings, drive unit and simple control panel. Optional features include trapezoidal bars and various bar space openings.
Heavy duty chain/rake coarse bar screen
No submerged bearings
No permanent submerged operating parts
Variable bar spacing
Easy access for maintenance
Material options for all 300 series SS or painted carbon steel for dry structure
Untreated waste or storm water is received from the upstream side of the bar screen. The bar rack extends from the bottom of the flow channel where it receives water carrying coarse debris. The debris is removed by a moving rake that is raised on tracks by chains. When the rake reaches the ejector assembly, which consists of a pivoting wiper and a blade, the debris is ejected through a discharge chute.
Screen Size: Up to 4m wide and wider
Screen Openings: 0.25 to 4.0” or larger
Channel Depth: Up to 12m or deeper
Incline: 60° - 90° from horizontal
Debris Discharge: Above Operating Floor
Material Discharge: Beaching Plate
Material: Stainless Steel (300 Series) or Painted Carbon Steel
Optional Non-Clog Trapezoidal Bars
No Submerged Rotating Parts
Instant Operation after long idling periods
Various Bar Space Openings
Level and Timer Controls
Custom Sizes and Options Available
Minimal O&M Cost
Ideal for both Municipal and Industrial Use
Wastewater Treatment Plants (WWTP)