Rotary Drum Filter
  • Products Details

Zhongshan eWater Aquaculture Equipment Technology Limited relying on strong innovation ability and firm R&D perseverance, successfully developed Ras aquaculture fish farm system equipment open type or closed type rotary drum filter for koi pond. Ras aquaculture fish farm system equipment open type or closed type rotary drum filter for koi pond attaches great importance to technological innovation in the research and development process. Zhongshan eWater Aquaculture Equipment Technology Limited will continually adopt positive marketing strategies to develop new markets, therefore establishing a more sound sales network. Moreover, we will reinforce the scientific research and try hard to gather more talents to focus on the research and development of new products. Our wish is to become one of the most competitive enterprises in the market.

Applicable Industries:Farms, AquacultureShowroom Location:Bangladesh, Kazakhstan, Malaysia
Video outgoing-inspection:ProvidedMachinery Test Report:Not Available
Marketing Type:New Product 2022Warranty of core components:1 Year
Core Components:Pump, Gear, PLCPlace of Origin:Guangdong, China
Brand Name:eWaterMaterial:SS 304, SS304/SS316
Weight:~200 kgSize:made to order
Power:~1.0 KwWarranty:2 years, 24 Months
Productivity:20~500T/hrWeight (KG):800 kg
After-sales Service Provided:Free spare partsCapacity:150 m3/hr
Voltage:220V / 380V 50HZ/60HZ.ectApplication:Solid removal for water treatment
Function:Filtering Suspended MatterType:Open Type
Certification:CE Certificate

Ras aquaculture fish farm system equipment open type or closed type rotary drum filter for koi pond
Product Description
Vacuum Drum Filter

Our rotary drum filter is an efficient mechanical filtration for freshwater or seawater. It is alternative to sand filtration especially when excessive wastewater is concerned.This filter is the perfect equipment for marine filtration applications or fish farming. It is made to be installed directly in a basin or a canal made of concrete. 

The drum filter can separate solids, like food waste, fish feces and other organic waste  which are over 30 μm from the tail water.

Detailed Images

Our Advantages

1.High efficiency of the back-wash system due to a strong vacuum pump and mature designed structure.

2. Automatic cleaning system included two choices for the back-wash system. Suitable for different situations.

3. Low power consumption, easy for operation and maintenance.

4. Durable stainless mesh screen for saltwater, corrosion resistance and easy for renewal.

5. Low resistance and high discharge capacity. 

Successful Cases


The RAS is a high density indoor aquaculture system and the fish species of eWater RAS successful applications including the Mandarin fish, Spotted bass, Turbot Fish, Lobster,Vannamei, King grouper,Tilapia and so on.

Successful cases

Pabda Catfish (Ompok Pabda)

● Culturing Cycle Time: 90 – 110 D to 40 - 55 grams size

for harvesting

● Biomass: 60 kilograms/m3 at harvesting  
● Temp: 15 – 30 ℃, 22 – 27 ℃ preferred

Shing (Stinging Catfish)

Heteropneustes Fossilis

● Culturing Cycle Time: 140 -160D to 65 - 80 grams size for harvesting
● Biomass: 80 kilograms/m3 at harvesting
● Temp: 20 – 30℃, 23 – 28℃ preferred

Kio (Climbing Perch)

● Culturing Cycle Time: 150 D to 250 grams size for 

● Biomass: 100 kilograms/m3 at harvesting
● Temp: 25 -30℃

Anguilla Anguilla

● Culturing Cycle Time: 150D to 150 grams size from

50-gram fingerlings

● Biomass: 60 kilograms/m3 at harvesting
● Temp: 26-30℃

RAS used to grow Pabda in Bangladesh

Farming cycle time: 120 days (fingerlings to 80 grams for
Biomass ( stock density): 80 kg /m ³
RAS water volume: 285 m³
RAS water flow: 240 m³/hour

RAS used to grow Tilapia in Jordan

Three tanks for grow-out and one tank for harvesting
Water volume: 1182 m³
12 small tanks for fingerlings nursery, each tank 36m³
Biomass(stock density) at harvesting : 100 kg /m³
RAS water flow: 1000 m³ /hour

About eWater

Company  Profile

Zhongshan eWater Aquaculture Equipment Technology Co., Ltd is a professional company engaged in design, production and sales of Recirculating Aquaculture System as well as aquaculture equipment. 

Ewater is focused on the development and anufacturing of industrial recirculating aquaculture system solutions, 

and its product design and production, including drum filters, protein skimmers, biological filters, aeration equipment, disinfection equipment, heat pumps and 

water quality monitor equipment.

We work with top-level aquaculture research institutes and experts to develop best solutions for our customers in quacultrure industry. Our engineering team is committed to develop best practices for each equipment and RAS based on customers' needs. We continue to be reliable and honest in what we do and how we act.
Our mission is to improve sustainability and profitability for customers,and be a valuable partner for customers' long-term business.
Packing & Delivery
Our Service

Great Service is Our Misson

● Consulting service available and custom designs are welcomed!

● We offer practical solutions, premium quality products along side competitive prices and prompt delivery.

● All the equipment are guaranteed for 2 years and life-time warranty except for the wearing parts.

● Support onsite installation and sending engineer for debugging on demands.

● After-sales service and content: If the quality problems occur; even the equipment lose the ability of working, we will  repair or replace them free of charge during the warranty period. The product is life-long maintenance and we will 

provide all-round services except for factors such as artificial damage or irresistible force.

Contact us

For more information of eWater RAS for your applications

Ras aquaculture fish farm system equipment open type or closed type rotary drum filter for koi pond
Ras aquaculture fish farm system equipment open type or closed type rotary drum filter for koi pond

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Our mission is to improve sustainability and profitability for customers, and be a valuable partner for customers’ long-term business.

They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.

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