DSM screen

DSM Screen

DSM Screen is a specialized type of wire mesh screen used for solid-liquid separation in a wide range of industries. The screen gets its name from the Dutch State Mines (DSM), a multinational company that originally developed this technology.

DSM Screen features a curved or arc-shaped surface, which distinguishes it from traditional flat screens. This curved design allows for efficient separation of solids from liquids by creating a gentle rolling effect. The solid particles tend to accumulate and slide down the curved surface, while the liquid passes through the screen.

The curved design of the screen enhances the separation efficiency by creating a large effective surface area and maximizing the contact between the solid particles and the screen. This promotes the effective removal of solids from the liquid stream.

The curvature of the screen helps in preventing clogging and blinding. The solids tend to slide or roll down the curved surface, minimizing the chances of blockage and allowing for continuous operation. This self-cleaning action helps maintain a high level of filtration efficiency.

The construction of DSM Screens involves using high-quality stainless steel or other corrosion-resistant materials. The wires are precisely spaced to create wedge-shaped openings or slots on the curved surface. The size and shape of these slots can be customized to meet specific particle size separation requirements.


Custom DSM screen

Custom DSM screen

Custom DSM screen refers to a Dutch State Mines screen that is specifically designed and manufactured to meet the unique requirements of a particular application. Similar to a wedge wire filter, customization options for DSM screens include tailoring the slot size, screen width, curve angle, and overall dimensions to achieve optimal performance in terms of solid-liquid separation.

By working closely with the manufacturer, industries can obtain DSM screens that are precisely tailored to their specific process needs, ensuring efficient particle separation, self-cleaning action, and compatibility with their operating conditions.

DSM screen production process

DSM screen production process

The production process of DSM screens typically involves the following steps:

1.Material selection: High-quality stainless steel or other corrosion-resistant materials are chosen for screen construction.

2.Wire mesh formation: The selected material is processed to form the wire mesh with precise spacing.

3.Curving: The wire mesh is curved or bent into the desired arc shape, using specialized machinery and tools.

4.Slot cutting: Wedge-shaped slots or openings are precisely cut or formed on the curved surface of the screen.

5.Quality control: The finished DSM screens undergo rigorous quality checks to ensure dimensional accuracy, slot integrity, and overall quality.

6.Customization: If required, the screens can be further customized to meet specific application requirements, such as size, slot size, and curvature.

7.Packaging and delivery: The DSM screens are packaged securely and delivered to customers for installation in their solid-liquid separation systems.

Material of DSM screen

Material of DSM screen

DSM screen is typically made from high-quality materials, with stainless steel being the most common choice. Stainless steel offers excellent corrosion resistance, durability, and strength, making it suitable for various industrial applications.

Different grades of stainless steel, such as 304 or 316, may be used depending on the specific requirements of the application. These materials ensure the longevity of the DSM screen and enable it to withstand harsh operating conditions. Other materials, such as polyurethane or other corrosion-resistant alloys, may also be used in certain cases to meet specific application needs.

Construction of DSM screen

Construction of DSM screen

The construction of a DSM screen involves the following elements:

1.Curved frame: The frame of the DSM screen is curved or bent to create the arc shape that allows for efficient particle separation.

2.Wire mesh: A high-quality wire mesh, typically made of stainless steel, is attached to the curved frame. The wire mesh has precise spacing and wedge-shaped openings to facilitate solid-liquid separation.

3.Support structure: The DSM screen is supported by a sturdy structure, such as side beams or support brackets, to ensure stability and proper installation.

4.Reinforcement: Additional reinforcements, such as crossbars or tensioning systems, may be incorporated to enhance the strength and durability of the DSM screen.

DSM screen working principleDSM screen working principle

The working principle of a DSM screen is based on the curved surface and wedge-shaped openings. When the liquid-solid mixture flows onto the curved surface of the screen, the liquid passes through the openings while the solid particles are retained on the screen’s surface.

Curved design facilitates the self-cleaning action as the solids slide or roll down the surface, preventing clogging and maintaining high filtration efficiency. This separation mechanism allows for effective removal of solids from the liquid stream, achieving solid-liquid separation in various industrial processes.


Most frequent questions and answers

Wedge wire DSM screens are used for solid-liquid separation in a variety of industries and applications. Some common uses include:


1.Mining: DSM screens are utilized in mining operations for dewatering processes, separating solids from water, and recovering valuable minerals.


2.Water treatment: DSM screens play a vital role in water treatment plants, removing suspended solids, sediment, and debris from the water.


3.Food and beverage: DSM screens are employed in the food and beverage industry for clarification, separation, and filtration processes, ensuring product quality and purity.


4.Pulp and paper: DSM screens aid in the pulp and paper industry by separating fibers, removing contaminants, and improving the quality of paper products.

Stainless steel DSM screen refers to a Dutch State Mines screen made from stainless steel material. Stainless steel is a corrosion-resistant alloy that contains a minimum of 10.5% chromium, which forms a protective layer on the surface and helps prevent rusting and staining.  


Stainless steel DSM screen offers excellent durability, strength, and resistance to corrosion, making it suitable for various industrial applications. The stainless steel material used in DSM screens can be of different grades, such as 304 or 316, depending on the specific requirements of the application, including the operating conditions and the types of fluids being processed.

The design of a DSM screen takes into consideration various factors to ensure effective solid-liquid separation. Key aspects of it design include:


1.Curved surface: DSM screens feature a curved or arc-shaped surface, which promotes the self-cleaning action and prevents clogging.


2.Slot openings: The design includes precisely spaced wedge-shaped slot openings on the curved surface, allowing for the desired particle separation based on application requirements.


3.Frame and support structure: The design incorporates a sturdy frame and support structure to provide stability and proper installation of the DSM screen.


4.Customization: DSM screens can be designed and customized to meet specific application needs, such as size, slot size, and curvature, ensuring optimal performance and compatibility with the process.

DSM wire screens offer several advantages in solid-liquid separation processes:


1.Efficient separation: The curved design and precise slot openings of DSM screens enable efficient separation of solids from liquids, ensuring high filtration efficiency.


2.Self-cleaning action: The curved surface promotes the self-cleaning action, preventing clogging and minimizing maintenance requirements.


3.Durability: DSM screens are constructed from high-quality materials, such as stainless steel, ensuring durability, resistance to corrosion, and long-lasting performance.


4.Versatility: DSM screens find application in various industries and can be customized to meet specific requirements, making them versatile for a wide range of solid-liquid separation applications.


5.Customization: DSM screens can be tailored to specific needs, including slot size, screen width, curve angle, and overall dimensions, providing flexibility and adaptability for different processes.

DSM screen and sieve bend screen are similar in their curved design and application for solid-liquid separation. However, there are some differences between the two:


1.Construction: DSM screens are typically made of wedge wire, while sieve bend screens consist of a curved wire mesh.


2.Slot openings: DSM screens have precise wedge-shaped slot openings, whereas sieve bend screens have uniform rectangular or trapezoidal openings.


3.Self-cleaning: Both screens offer self-cleaning action, but the curved surface of DSM screens enhances this feature, reducing the risk of clogging.


4.Customization: DSM screens offer more customization options in terms of slot size, screen width, and curvature to meet specific application requirements.

The term “DSM screen” stands for Dutch State Mines screen. It refers to a specific type of wire mesh screen used for solid-liquid separation in various industrial processes. The name originates from the Dutch State Mines, a multinational company that developed this technology.


DSM screens are characterized by their curved or arc-shaped surface, which enhances the separation efficiency and promotes self-cleaning. The curved design allows solids to accumulate and slide down the screen, while the liquid passes through. DSM screens are known for their effectiveness, durability, and versatility in applications requiring efficient solid-liquid separation.

DSM screen suppliers typically have the capability to accommodate bulk orders or ongoing supply requirements. As suppliers of industrial equipment, they are accustomed to working with customers who have large-scale or continuous supply needs. They often have the production capacity, resources, and logistics in place to handle bulk orders efficiently.


They can work with customers to determine the required quantities, delivery schedules, and pricing arrangements. Whether it’s a one-time bulk order or ongoing supply requirements, DSM screen suppliers strive to meet the needs of their customers and provide a reliable and consistent supply of the screens.

When choosing a DSM screen manufacturer, consider factors such as their experience and expertise in the industry, the quality of their products, customization options available, their reputation and customer reviews, adherence to industry standards, manufacturing capabilities, after-sales support, and their ability to meet your specific requirements. Additionally, consider factors like price competitiveness, lead times, and their ability to provide technical assistance and guidance throughout the selection and installation process.

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