Submersible Type External Rotary Fed Drum Screen | For Pump Station & Wet Well Installation

Submersible Type External Rotary Fed Drum Screen | For Pump Station & Wet Well Installation

Category： Externally Fed Drum Screen
Drive Mechanism: Heavy-Duty Gear Motor
Flow Capacity: Up to 5000 m³/day
Spray Water System: High-Pressure Nozzles Included
Installation: Channel Mounted, Pre-assembled Unit
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Externally rotary fed drum screen description

An externally fed rotary drum screen is a mechanical screening device where influent water flows over the external surface of a rotating drum.
As water passes through the screen, suspended solids are captured and carried away for disposal.

The clear liquid moves forward to the next treatment stage.

This simple yet effective design makes it ideal for solid-liquid separation in various wastewater treatment processes.

The drum screen surface can be made from wedge wire or perforated plate materials, offering flexibility depending on the type of solids to be removed.

An externally fed rotary drum screen is a mechanical screening device where influent water flows over the external surface of a rotating drum.

As water passes through the screen, suspended solids are captured and carried away for disposal.

The clear liquid moves forward to the next treatment stage.

This simple yet effective design makes it ideal for solid-liquid separation in various wastewater treatment processes.

The drum screen surface can be made from wedge wire or perforated plate materials, offering flexibility depending on the type of solids to be removed.

Externally rotary fed drum screen function

The screen is externally fed so that influent is directed under a baffle, then upward and over the length of the cylinder.

The natural action of wastewater cascading through the screen creates a powerful backwash, which results in a continuously clean surface.

Solids are caught on the outside of the screen surface and are removed by a tensioned doctor blade.

Opening sizes are available from 0.010" (.250 mm) to 0.100" (2.54 mm).

Capacities range from 60 GPM (13.6 M3/H) to 7800 GPM (1771 M3/H) in a single unit. Additional models are available to handle higher capacities.

Externally rotary fed drum screen model

Industry Type	Slot (mm)	RDS03/300	RDS06/400	RDS06/700	RDS06/1000	RDS06/1300	RDS06/1600	RDS08/2000	RDS08/2500
Paper Industry	0.5	6	20	40	60	80	100	130	190
Slaughter House	0.5	4	15	30	45	60	75	95	130
Seafood Industry	0.75	5	17	35	50	70	90	110	140
Meat Industry	0.75	6	20.5	40	60	80	100	130	190
Meat Industry	1.0	7.5	25	50	75	100	125	150	220
Vegetable Industry	1.0	12	40	75	110	150	180	220	330

Externally rotary fed drum screen advantage

1. 100% overflow protection for designed flow up to 5.0 mgd.

2. More material recovery for re-use or improved industrial wastewater production.

3. Customized to fits into existing infrastructure.

Externally rotary fed drum screen feature

1. Durable & Space-Saving Design

Made of high-strength, corrosion-resistant stainless steel. Requires minimal installation space and no channel construction.

Can be fixed directly with expansion bolts; inlet and outlet can be easily connected via pipes.

2. Non-Clogging Performance

The inverted trapezoidal cross-section of the screen prevents blockages caused by solid waste.

3. Smart Operation

Equipped with a variable-speed motor that adjusts automatically to water flow, maintaining optimal working conditions.

4. Self-Cleaning System

Features a specialized dual-brush cleaning system and external washing device, ensuring thorough cleaning and consistent screening efficiency.

Externally rotary fed drum screen application

This advanced solid-liquid separation device is designed for continuous and automatic removal of debris in wastewater treatment processes.

It is ideal for:

Municipal wastewater treatment plants

Residential and community sewage pretreatment systems

Pumping stations, waterworks, and power plants

Industrial wastewater treatment across sectors such as: textile, printing and dyeing, food processing, fishery, papermaking, winemaking, slaughterhouses, leather factories, and more.