
Equipment IntroductionThe grid cleaning machine is a core solid-liquid separation equipment developed for the front-end pretreatment of municipal Wastewater and industrial wastewater. Its core function is to intercept and remove solid debris such as tree branches and plastics in Wastewater, prevent blockage of subsequent equipment, and serve as the "first line of defense" for water treatment.
Applicable Water SourceTap water, river water, groundwater, mine water, rainwater, seawater, high hardness water, high alkalinity water, high turbidity water
Application ScenariosWastewater pretreatment, reclaimed water reuse, low temperature/low turbidity water treatment
Bar Screen Cleaner Equipment Introduction
The bar screen cleaner is the core solid-liquid separation equipment developed by DIEN Water Treatment for the front-end pretreatment of municipal Wastewater and industrial wastewater. Its main function is to intercept and remove solid debris such as tree branches and plastics in Wastewater, preventing blockage of subsequent equipment and serving as the first line of defense in water treatment. DIEN bar screen cleaners are divided into mechanical and automatic series with customizable bar spacing from 3mm to 100mm and processing capacity from 5 to 500m³/h. The frame is made of 304 stainless steel, and customized models such as rotary type and rake tooth type are available. With automatic start-stop, dirt cleaning and alarm functions, it replaces manual work and is suitable for municipal Wastewater plants, industrial wastewater stations and various other projects.
Working Principle of Bar Screen Cleaner
Its core principle is physical interception + mechanical decontamination. When Wastewater passes through the grille, the bars intercept impurities larger than the grid gap, and qualified Wastewater flows into subsequent treatment processes. Driven by a motor, the chain and rake teeth of DIEN equipment automatically scrape impurities to the discharge outlet without manual duty. Equipped with overload and limit protection as well as automatic flushing functions, it avoids clogging. Adopting pure physical separation with no secondary pollution, it can operate continuously.
Core Advantages of Bar Screen Cleaner System
DIEN bar screen cleaners perfectly fit actual engineering demands with outstanding advantages:
1. High decontamination efficiency over 98%, solving the pain point of manual cleaning;
2. Exclusive PLC control system automatically adjusts cleaning frequency, greatly reducing labor costs;
3. Made of 304/316L stainless steel with corrosion resistance and a whole machine service life of 10–15 years;
4. Customizable bar spacing and processing capacity to fit large and small projects;
5. Motor power ranges from 0.75 to 15kW with energy saving and stable 24-hour operation;
6. Modular design enables convenient installation and maintenance, with commissioning completed within 3–5 days.
Application Fields of Bar Screen Cleaner
DIEN bar screen cleaners are widely applied: intercept domestic debris in municipal Wastewater treatment plants and pumping stations; block fibers and waste residues in wastewater stations of food, papermaking and other industries; trap floating matters in rivers and reservoirs to improve water quality; protect subsequent equipment in waterworks and Wastewater pumping stations; also suitable for pretreatment scenarios such as landfill leachate and aquaculture wastewater.
Standard Process Flow of Bar Screen Cleaner

Bar Screen Cleaner Process Flow Chart
Standard Process: Raw Water → Grille Chamber → DIEN Bar Screen Cleaner (Interception + Automatic Decontamination) → Debris Collection → Qualified Wastewater → Subsequent Treatment → Discharge / Reuse. Coarse and fine grilles can be matched according to water quality. The whole process is fully automatic, safeguarding the stable operation of subsequent treatment systems.
The bar screen cleaner directly affects the stability of the water treatment system. With 10 years of experience in equipment R&D and installation, DIEN Water Treatment customizes solutions according to your processing capacity and water quality conditions, providing one-stop services including free site survey, installation, commissioning and lifelong maintenance. Whether for municipal, industrial or river regulation projects, DIEN can provide perfectly matched equipment to thoroughly solve the problem of debris interception. Consult DIEN Water Treatment now to get exclusive quotations and technical solutions and make front-end pretreatment more efficient and stable!
Tel: +8617792214459(WhatsApp)
E-mail: info@dienwp.com
Website: www.dienwp.net
Address: West side of the first floor of Building B, Baoyilongji Center, No. 158 Fengcheng Eighth Road, Xi'an Economic and Technological Development Zone, Shaanxi Province