The Apollo Multi Rake Bar Screen is an advanced, chain‑operated mechanical screening system designed to remove large, medium, and fibrous debris from wastewater streams with high reliability and precision. Widely used across municipal sewage treatment plants, industrial effluent treatment units, and raw water intake structures, the system provides an essential pre‑treatment barrier to protect downstream equipment.
Built with a heavy-duty frame and engineered for continuous operation, the Multi Rake Bar Screen combines robust construction, synchronized rake movement, efficient debris lifting, and minimal maintenance. The rake system travels along the full screening depth, ensuring consistent debris removal and preventing clogging, even under fluctuating flow or high‑load conditions.
Its modular construction allows easy customization of bar spacing, channel width, installation angle, and material of construction, making it suitable for a wide range of flow capacities and site constraints.
| No. | Step | Description |
|---|---|---|
| 1 | Influent Entry | Wastewater enters the channel and flows toward the screen. The fixed bars are positioned vertically at an angle of 70°–85° to maximize hydraulic efficiency. |
| 2 | Solid Retention | Solids larger than the pre-selected bar spacing are trapped on the screen surface. |
| 3 | Rake Engagement | Multiple rakes attached to a chain mechanism travel downward and interlock precisely with the bar rack. |
| 4 | Debris Lifting | As the chain rotates, the rakes lift trapped solids upward along the guide tracks. |
| 5 | Debris Discharge | A top-mounted scraper wipes the debris off the rake, dropping it into a conveyor, chute, or waste collection bin. |
| 6 | Return Cycle | Cleaned rakes travel downward through a guided path, ensuring debris does not re-enter the channel. |
| 7 | Continuous Cleaning | Automated control ensures uninterrupted screening without manual intervention. |
| Parameter | Specification |
|---|---|
| Screen Type | Vertical or inclined bar screen with fixed bars and moving rakes |
| Installation Angle | 70° to 85° (customizable based on channel design) |
| Bar Spacing | 6 mm to 50 mm depending on application and screening efficiency |
| Channel Width Range | 500 mm to 4000 mm (custom-built available) |
| Channel Depth | Up to 20 meters (depending on structural design) |
| Material Options | SS304 / SS316 / SS316L |
| Rake Type | Solid or fabricated rakes with precision-machined teeth |
| Chain Type | Heavy-duty roller chain or link chain for long service life |
| Drive System | Electric motor with gearbox, torque limiter, and chain drive |
| Power Rating | 0.75 kW to 5.5 kW depending on screen size and load |
| Discharge Height | Customizable to suit conveyor or chute level |
| Control Panel | PLC / automatic control with manual override |
| Operation Mode | Continuous or intermittent (timer or level sensor based) |
| Debris Handling | Top scraper discharge to conveyor / skip / waste bin |
| Key Features | Benefits |
|---|---|
| Heavy-duty construction | Engineered with robust frames and high-strength materials to ensure long-term reliability |
| Multi-rake mechanism | Multiple rakes increase debris capture efficiency and enable faster cleaning cycles |
| Chain-driven system | Ensures powerful, controlled, and synchronized movement with minimal wear |
| High screening efficiency | Prevents clogging and maintains uninterrupted water flow even during peak loads |
| Low maintenance design | Reduced moving parts, self-cleaning mechanism, and long-life chains minimize downtime |
| Customizable configuration | Bar spacing, width, depth, angle, and materials can be tailored to project requirements |
| Corrosion-resistant materials | Use of SS304 / SS316 ensures extended service life in corrosive wastewater environments |
| Automated control system | PLC-based automation enables fully unattended operation with level or timer controls |
| Easy access & maintenance | Designed for convenient maintenance of sprockets, chains, and drive units |
| Reliable safety mechanisms | Equipped with overload protection, emergency stop, and torque limiter for safe operation |
