Internally Fed Rotary Drum Screens
Internally Fed Rotary Drum Screens remove suspended solids from process and wastewater streams. Use this page to review features, sizing considerations, and brochure details for peak flow, TSS, and FOG.
Dual Rotary Drum Screens on site
Internally Fed Screens
Features
To begin, Internally Fed Rotary Drum Screens offer flexible sizing and rugged stainless construction for tough process and wastewater jobs. For example, you can choose from multiple screen types, sizes, and drive options.
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Screen cylinder: Helical-wound wedge wire in many diameters and lengths.
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Slot openings: 0.005″ to 0.250″ (starting at 0.005″ and larger as needed).
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Perforated options: 2 mm or larger openings for many applications.
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Complete screen assembly: Support trunnions, segmented or continuous flighting, and a drive assembly with shaft-mounted variable-speed drives.
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Influent headbox: Handles pumped or gravity flow and includes flow dampening/distribution weir(s).
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Chassis: Heavy-duty, all-stainless steel chassis with a built-in sump and filtrate discharge piping.
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CIP spray manifold: Single or double spray bars available.
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Variable-speed drives: Improve performance and give better control.
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Materials: All metal components use Type-304 stainless steel unless otherwise specified.
In addition, peak flow, TSS, and FOG typically set the final size for Internally Fed Rotary Drum Screens. Therefore, we size each unit based on Peak Flow, TSS, and FOG to match your conditions.
Internally Fed Screens – Sizes available based on Peak Flow TSS and FOG
Engineered to Your Specifications
Most importantly, Dontech engineers Internally Fed Screens to meet client specifications. They handle gravity or pumped flow, and they include a full chassis cover with access/inspection doors and optional odor abatement.
Furthermore, the system design supports reliable operation and simplified service:
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Trunnion support: Polymeric trunnions with shafted, permanently lubricated, sealed bearings for long-term performance.
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Screen media choices: Choose wedge wire or perforated screening in multiple opening sizes to match solids characteristics and removal goals.
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Solids removal performance: Configure openings and geometry based on the client’s specific needs and influent profile.
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Integral sump: Each unit includes an integral sump, and you can oversize or shape it to meet design constraints and footprint limitations.
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All-stainless build: Stainless construction throughout, including legs, pans, and related components—no hidden add-on costs.
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Control options: Select electrical control panels ranging from basic operation to sophisticated control circuitry.
Finally, if you share your target performance goals and influent details, we can recommend the best configuration for your peak flow, TSS, FOG, and maintenance preferences.
Dontech Industries History
Founded in 1980, Dontech Industries, Inc. offers decades of experience in engineering design, and manufacturing of screens, screening systems, belt presses and solids conveyance systems.
With its own team of experienced machine operators/welders each screen is individually constructed and sized based on the client’s needs. This professional team allows for ease of construction of equipment that is unique in shape, size, or other design considerations.
Offering experience on both the industrial and municipal markets, our professionals have the knowledge that allows all pertinent design questions to be addressed, assuring the final screen meets the design application and specifications.
Need help choosing Internally Fed Rotary Drum Screens for your application? Dontech can recommend a configuration based on your influent and maintenance goals.
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