Rotary Drum Screens FAQ: Specifications, Ordering and Support Questions

Buyers and engineers across wastewater treatment, food processing, pulp and paper, and other industries frequently ask similar questions before specifying a drum screen. The answers below are drawn from confirmed Muto Wire Screen Co., Ltd. product information.

What is a rotary drum screen and how is it built?

A rotary drum screen — also called a wedge wire rotary screen or wedge wire screen cylinder — is a round, rotating drum made of wedge wire mesh, designed for liquid filtration and liquid-solid separation. Muto Wire Screen Co., Ltd. constructs each unit entirely from stainless steel. The drum end is fitted with a welded flange or welding ring for straightforward installation on drum screening machines.

What materials of construction are available?

All drums are fabricated from stainless steel. The available grades include:

• Stainless steel 304, 316L, 321, 310S
• Duplex steel 2205 and 2507
• Hastelloy
• 904L
• Other alloys on request

The correct grade depends on the corrosivity of the process fluid and the operating environment. Contact Muto Wire Screen Co., Ltd. to confirm the most suitable option for your application.

What slot sizes are available?

Slot sizes run from 5 µm to 5 mm. The slot is the gap between adjacent wedge wire profile bars and controls the particle size that is retained. Custom sizes outside this standard range can be discussed with the engineering team.

What cylinder diameters and lengths can be made?

Standard cylinder diameters range from 100 mm to 2,500 mm, and drums can be produced in lengths up to 6,000 mm. Customised sizes beyond these dimensions are possible — confirm feasibility directly with Muto Wire Screen Co., Ltd.

What support profile shapes and pitches are offered?

The wedge wire support profile is available in several cross-section shapes:

• Triangular (V-shaped / wedge)
• Square rod
• Round rod
• Flat bar
• Water-drop profile

The support rod pitch ranges from 0.02 mm to 10 mm, or a custom pitch can be specified.

Which industries and applications are these screens used for?

These products are used wherever continuous liquid-solid separation or fine screening is required. Confirmed application areas include:

• Wastewater treatment (municipal and industrial effluent, including rotary drum screen wastewater duty)
• Sugar industry screening
• Manure dewatering on large-scale livestock farms
• Poultry and meat processing effluent
• Seafood processing effluent
• Vegetable and fruit processing effluent
• Pulp and paper debarking water
• Screen laterals and nozzle collectors
• Resin traps and in-line strainers
• Water intake screens and well screens

How does installation work?

The drum end is designed with a welded flange or welding ring that provides a standard attachment point for drum screening machines. Exact installation requirements depend on the specific machine model; Muto Wire Screen Co., Ltd. can advise on fitment when you make an enquiry.

How do I request a quote or confirm my specification?

Because slot size, cylinder diameter, length, material grade and support profile can all be customised, the most reliable approach is to contact Muto Wire Screen Co., Ltd. with your full application details: process fluid type, target particle size, required flow rate, drum dimensions, and operating environment. The company can then confirm the appropriate specification and provide pricing.

This article is prepared for Muto Wire Screen Co., Ltd. Visit [www.mutoscreen.com](https://www.mutoscreen.com) for company and product information. Confirm specifications and purchasing requirements directly with the company.