Basket Grate
Ürün Açıklaması
Stainless steel square baskets that capture large solid particles and waste such as bags, cloth, and plastic at the open channel inlets of wastewater treatment plants. Options include perforated sheet or bar (grid) types, standard size of 500×500×500 mm, with a flow rate of 0.5-500 m³/hour.
- Arsistek Marka
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- Türkiye İmalatı · 1-2 Hafta Teslimat
Transitioning to biological treatment without a bar screen in your wastewater inlet line means that the pumps will burn out within 6-12 months and the membranes will clog prematurely. A small initial investment of 3-5% pays for itself many times over in the following 20 years.
Perforated Sheet Type
Side walls and bottom made of perforated stainless steel. Provides filtration from all directions, suitable for more precise mesh options. Preferred in general wastewater applications.
Bar Screen Type
The sides and bottom are woven with vertical stainless steel rods. Low pressure loss at high flow rates, easy cleaning. Popular in municipal and industrial open channels.
Hybrid (Perforated + Rod)
Side walls are rod-shaped (high flow), and the bottom is perforated (micro-particle retention). It provides the most comprehensive protection. It is recommended for precise applications before pumping.
As Arsistek, we are an engineering company that has produced and installed basket screens in over 150 projects since 2014, gaining field experience across a wide range from municipal wastewater treatment plants to textile, food, chemical, and slaughterhouse industries. Our basket screens are suitable for applications of all scales with 304 and 316 stainless steel body options, 3 mm – 50 mm mesh openings, and 0.5 – 100 m³/hour flow capacities.
What is a Basket Screen?
A basket screen is a mechanical filtration equipment positioned at the beginning of the wastewater line that retains solid materials from the passing water. It gets its name from the "basket" shaped stainless steel sieve structure that holds the pollutants. This basket is periodically pulled out by the operator, the solids inside are emptied, and after cleaning, the basket is placed back in its position.
It is the cornerstone of the mechanical pre-treatment stage in wastewater treatment. It works in conjunction with other pre-treatment equipment (sand trap, oil separator, coarse screen, fine screen) and provides clean flow to the subsequent stages of the system.
In which sectors is it used?
The basket grate is the first equipment in the pre-treatment stage for both domestic and industrial wastewater applications. Below, you can find the most common areas of use and the sector-specific grate opening recommendations.
Textile Industry
It is critical to separate fiber fragments, fabric residues, and towel scraps in textile wastewater from dyeing and finishing processes.
Food and Beverage
In slaughterhouses, dairy product, and beverage filling facilities, for the retention of large-sized organic materials such as meat pieces, bones, vegetable waste, shells, etc.
Chemical Industry
Models with 316 stainless steel bodies are used for the separation of polymer flocs and crystal deposits in chemical process wastewater in corrosive environments.
Domestic Wastewater
It is the first mechanical pre-treatment equipment used in package treatment facilities such as apartments, hotels, shopping malls, and hospitals. It generally operates in the range of 1-50 m³/hour.
Municipal Treatment Facilities
At municipal wastewater treatment plants, high-capacity models are used at the inlet of the pumping line as a complement to the primary screening stage.
Recycling Facilities
In the separation of fibers and micro-particles in the process waters of paper, plastic, and metal recycling, to protect the subsequent filtration stages.
How Does a Basket Screen Work?
A simple yet ingenious design that operates on the principle of static gravity flow — it stops solids in wastewater while allowing the continuous flow of water.
Introduction
Wastewater enters the screen through the flanged inlet located at the upper part of the body.
Filtration
The water passes through the basket screen. All solid particles larger than the opening of the screen are retained within the basket.
Output
Filtered water is conveyed to the next stage of the system through the bottom or side flange.
Signal
The fill level sensor monitors capacity, triggers an alarm when the threshold is exceeded, or initiates automatic cleaning.
Cleaning
The basket is pulled out, the waste is emptied into the container, the basket is washed and placed back in its position.
In modern industrial applications, a fully automatic cleaning module is designed. When the fill threshold is exceeded, an electric actuator or pneumatic cylinder is activated, the basket is automatically transported outside, waste is removed via a conveyor, the basket is washed with a water jet, and it is returned to its place. The entire process is managed by a PLC and can be monitored in real-time from a remote monitoring system.
10 Fundamental Advantages of Basket Screens
When selected correctly, a basket grate guarantees the long life of your treatment plant. Here are the concrete benefits it will provide you.
Low Investment Cost
A much more economical investment compared to other pre-treatment equipment (automatic screening grid, shredder, etc.).
Protects the Pump
It prevents large solids from entering the system, thereby preventing pump burnouts, shaft seal failures, and downtime caused by overheating.
Ease of Maintenance
It is cleaned within minutes with the basket quick release/installation system, no special tools are required.
Long Lasting
Thanks to the stainless steel body and basket, a minimum problem-free service life of 15-20 years.
Low Pressure Loss
Thanks to the optimum hydraulic design, it does not create additional pump power requirements in the system (0.1-0.3 bar).
Flexible Mesh Selection
12 different bar spacing options from 3 mm to 50 mm — suitable for every application.
Modular Structure
It integrates with flanged connections, can be easily added to existing lines, and is simple to transport.
Automatic Models
It operates without an operator with an optional fill level sensor and automatic cleaning actuator.
CE Certified
Manufacturing in accordance with European standards can be used in export products.
Fast Delivery
Standard models are delivered within 1-2 weeks from stock, while custom manufacturing takes 3-5 weeks.
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