STEPFLOW®

Mechanical Step Screen

High Capture, Low Maintenance, Self Cleaning

STEPFLOW : Mechanical Step Screen

Application

Primarily intended for sewage inlet works, step screens are a carpet type of screening systems for separating suspended solids. They are designed to handle large flow rates of sewage or process flows with small head loss, low energy consumption and minimal maintenance.

Operation

Water flow approaches the step screen along with solid screenings with it. The solid screenings are retained on the screen which form a carpet by time. The carpet creates an additional filtering effect and helps to filter increasingly finer particles. As soon as the level difference between upstream and downstream reaches to the predetermined point, the cycle automatically starts to clean the screen. During the cycle, steps move upwards and mobile lamella lifts the screenings onto the next step until the screenings reach the discharge point.

Application Area

Features

Dimension and Manufacturing

Bar Spacing: 3mm to 100mm

Channel width: 400mm to 3000mm

Channel Depth: 1000mm to 20000mm

Material: Stainless Steel 304/316

Adroit’s Rakeflow Multi-rake Mechanical Bar Screen is an efficacious and reliable solution for industrial and municipal water/wastewater treatment requirements. Our Rakeflow® Multi Rake Bar Screen stands out as superiorly designed equipment, offering unmatched quality, efficiency, and durability. It is used in screening water and wastewater in primary treatment. It is used in sewage treatment units, stormwater drains, and industrial wastewater setups, guaranteeing efficient screening of floating waste, sustaining flow rates, and protecting downstream equipment and piping from damage.

Adroit has valuable experience and expertise of more than 35 years in the industry of water and wastewater treatment. Adroit specializes in the design and manufacturing of equipment for Sewage Treatment Plants (STPs) and Water Treatment Plants (WTPs). With a commitment to innovation and excellence, Adroit has established itself as a trusted name in the water and wastewater treatment industry. 

Adroit’s Stepflow Mechanical Step Screen –

At Adroit, we take pride in delivering high-performance, durable, and cost-effective solutions that cater to the evolving needs of municipal and industrial water treatment sectors. Here we will showcase how the Multi Rake Bar Screen works, its application, features, and more.

Application

Multi-rake Mechanical Bar Screen is the equipment used in the preliminary level of water & wastewater treatment to mechanically remove coarse and fine floating waste & solids from the flow to prevent damage and clogging of downstream equipment and piping. It consists of rake bars connected to a rotating chain. As water flows, the rake bars lift and move the trash to the top of the discharge chute for extraction. This screen is designed for screening flow entering treatment plants, pumping stations, stormwater outfalls, or industrial settings.  The filtration, bar thickness, material of construction, and number of rakes are chosen according to the type and quantity of material and considering the depurative process scheme adopted.

Operation

The equipment is composed of a screen with a spacing that can vary from 3mm to 100 mm. The screenings are lifted, transported upwards, and discharged using rakes, that are suitable for cleaning the filtration area. Rakes are guided by a chain drive system that engages the rakes and moves in a continuous loop. The chain drive system at the bottom does not have any bearings/mechanical components submerged by the raw water allowing unobstructed operation.

Features

  • A higher number of rakes ensures slower movement and low RPM motor operation, significantly reducing energy consumption, wear and tear, and maintenance while ensuring waste removal efficiency.
  • Adroit’s Rakeflow is designed for high screening discharge with minimal head loss, ensuring uninterrupted flow and optimal performance.
  • Manufactured with Stainless steel 304 & 316 and along with corrosion-resistant material in heavy-duty structure ensures minimal maintenance and long-lasting life
  • Field-proven and well-tested design with a wide range of references across various applications in varied prestigious projects & departments. 
  • Equipment undergoes immersion pickling and shot blasting with glass beads for a seamless finish 
  • Fitted with only reputed geared motors from Nord and Bonfiglioli and high-quality chains and other components, ensuring optimal performance and longevity
  • The chain drive system has no bearings/mechanical components submerged by the raw water ensuring unobstructed screening operation 

How to Contact Us?

If you want to know more about the product, then you can contact us through the below-mentioned details –

Phone – +91 70248-48383.

Email – [email protected].

You can also fill out the inquiry form at our website. 

Frequently Asked Questions (FAQ) for Adroit’s Stepflow Mechanical Step Screen:

Q.1 Where are Mechanical Multi Rake Bar Screens used?

Ans. These screens are commonly used in municipal wastewater treatment plants, pumping stations, stormwater drain outfalls, industrial treatment plants, effluent treatment plants, and irrigation systems.

Q.2 How do I choose the right screen for my application?

Ans. Our team shall help you assess based on  your needs, factors like channel dimensions, flow rate, type of waste expected, and your specific site conditions to recommend the best solution 

Q.3 What materials are multi-rake bar screens made from?

Ans. Our screens are typically constructed from high-grade stainless steel 304 & 316 and other corrosion-resistant materials, ensuring longevity and performance even in challenging conditions.

Q.3 How often does the screen need maintenance?

Ans. Maintenance frequency depends on the specific application and waste load. However, these systems are designed for low-maintenance operation, with regular inspections and occasional greasing being sufficient in most cases.

Q.4 Is Adroit’s Rakeflow Mechanical Multi Rake Bar Screen energy-efficient?

Ans. Yes, our equipment is designed for low energy consumption while providing high efficiency in waste removal.

Q.5 What is the lead time for delivery?

Ans. Delivery time may vary based on specifications and quantity. Typically, mechanical screen orders are manufactured within 4-6 weeks from manufacturing clearance.

Q.6 Do you offer after-sales service and support?

Ans. Adroit provides comprehensive support from installation of this equipment at your site to after-sales service, including maintenance support, spare parts, and technical assistance.

Q.7 What are the advantages of Adroit’s Rakeflow Mechanical Multi Rake Bar Screen over other manufacturers?

Ans. Key Benefits are:

  • A higher number of rakes 
  • High screening discharge and low head-loss
  • Standard parts and rugged steel structures lead to low maintenance
  • Immersion pickled and shot blasted with glass beads
  • Wide range of applications through innovative design.

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