SSW – Step Screens
The Fluiteco SSW Step Screen is an advanced solution for medium-sized wastewater treatment plants, designed for high-efficiency filtration through a self-cleaning, reciprocating mechanism. Engineered for in-channel installation, the SSW operates at an inclination between 45° and 55°, utilizing a series of alternating fixed and movable serrated lamellae. This precise eccentric motion creates a “step-by-step” progression that effectively captures debris and transports it toward the discharge point, ensuring consistent solids separation even under high flow conditions.
Design Flexibility and Integration
The SSW is highly adaptable to existing civil works, with widths ranging from 400 to 2000 mm and depths reaching up to 4,000 mm. In addition to standard in-channel installation, Fluiteco can provide a fully “boxed” version for above-ground integration. The design is optimized for both fine and coarse screening, typically ranging from 3 mm to 6 mm. A key advantage of the Fluiteco design is its modular construction: each machine is custom-lengthed based on the specific channel depth, ensuring the ideal operational angle for efficient solids transport.
Operational Reliability and Fluid Dynamics
To ensure consistent performance and mechanical longevity, the SSW incorporates smart engineering solutions to manage hydraulic variations. A specialized bottom flush system utilizes a targeted water jet to keep fine particles in suspension, preventing the accumulation of sediment at the base of the channel during periods of low flow velocity. The transmission is powered by a robust chain drive, monitored by precision position sensors for perfect synchronization. To further enhance durability, integrated bumper guards protect the lamellas from mechanical stress, while the entire structure is manufactured from high-grade stainless steel to resist corrosion.
Simplified Maintenance and Customization
Maintenance efficiency is built into the SSW’s DNA. The system includes an easy-release mechanism for the lamellae, allowing for quick inspection or replacement without extensive downtime. Lubrication is simplified through accessible grease fittings, ensuring that all moving parts remain in peak condition. For installations in extreme climates, an insulated version is available to prevent freezing. By combining high capture rates with minimal maintenance requirements, the SSW Step Screen represents a strategic choice for plants seeking reliable and automated solids management.
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