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Internal Drum ScreenInternal Drum Screen
PRE TREATMENT

Internal Drum Screen

Product Details

The Internal Fed Rotary Drum Screen is a high-efficiency drum filter in which wastewater is fed from inside the drum and separated to the outside, providing gentle flow that reduces the break-up of flocs and fragile solids. The screening basket is inside and the structure is entirely stainless steel, designed with a tightly sealed cover so odour can be controlled. It is suitable for wastewater containing soft or fibrous solids.

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Key Features: Internal Drum Screen
  • Water is fed from inside the drum, giving gentle flow that reduces particle break-up
  • Separates fine solids and fibres well
  • Tightly sealed cover controls odour
  • Conveys solids inside the drum
  • SUS304 structure and screen
  • Continuous automatic operation, easy to maintain
Benefits: Internal Drum Screen
  • Preserves the condition of solids/fibers for reuse
  • Reduces the solids load entering the treatment system
  • Better odor control from the enclosed design than open screens
  • Continuous operation with minimal labor
Working Principle: Internal Drum Screen
  • 1. Wastewater is fed into the interior of the rotating drum screen.
  • 2. Liquid passes through the mesh to the outside and is discharged.
  • 3. Solids are captured and conveyed by the drum rotation/internal screw toward the discharge end.
  • 4. A water spray cleans the screen surface to prevent clogging.
Supported Industries
  • Pulp and paper
  • Textiles
  • Food processing
  • Agricultural processing
  • Applications requiring fiber or soft-solids separation while preserving particle shape and controlling odor
Product Highlights
  • Gentle internal feed flow reduces floc break-up
  • Excellent fibre separation
  • Enclosed system controls odour
  • Continuous automatic operation with self-cleaning

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The Rotary Screen (External Fed Rotary Drum Screen) is a rotating drum screen for continuous and automatic separation of fine solids from wastewater. It uses a stainless steel wedge wire screen with openings of 0.25–3.0 mm, supports wastewater with high oil or grease content, and comes with a scraper blade and water spray system to help reduce clogging.

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The Bar Screen / Mechanical Bar Screen is a screening machine for capturing large solids in the first stage of a wastewater treatment system, with a rake unit that sweeps waste off the screen bars automatically and continuously. Bar spacing can be selected from 5–50 mm, supporting channel widths of 400–3,000 mm. It is made of coated steel, galvanised steel, or SUS304 stainless steel, helping prevent clogging of pumps and sump pits while reducing labour in waste handling.

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