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Shape Wire Screens Vs. Woven Wire Screens

If you work in the aggregate industry, then chances are you know how important it is to have the right screen for particular materials. There are many different types of screen materials available, and each has its own advantages and disadvantages. Before choosing replacement screening material, it’s important to assess your specific needs and applications. Woven wire cloth is the most commonly used screening material in the screening industry, but there are some instances where shape wire screens are more effective.

Woven Wire Cloth Screens

One widely accepted screening medium are woven wire screens. It is used in all phases of the screening industry to screen most any product that is reduced to a fixed gradation by size. By application it is used in primary scalping, sizing and dewatering for both wet and dry processes.

Woven wire cloth is probably the most frequently used screening medium because it is economical, provides high screen accuracy and is adaptable to most screening applications. Samscreen offers woven wire screens in three different wire types – high carbon, oil tempered and stainless steel – and has the ability to produce the widest and longest screens on the market.

Additionally, all of Samscreen’s woven wire cloth screens are individually tested for fit and accuracy, and are the most cost-effective screens on the market. Sometimes, however, woven wire cloth might not be the optimal choice for screening, especially in instances where blinding and pegging may be a concern. In those situations, shape wire screens are the preferred choice.

Shape Wire Screens

Shape wire screens are classified as non-woven wire screens and offer unique benefits and solutions. Because they are not woven, each wire acts independently, making shape wire screens an excellent choice for screening aggregates that often cause blinding and pegging.

Pegging is the condition where near sized particles enter into an aperture and partially pass through it but then become “pegged” in the opening when a critical dimension is too large. The particle cannot pass through the opening nor can it remove itself from the opening, thus closing the opening off and reducing the number of available apertures to other particles.

Blinding is the condition where particles adhere to the screen surface itself, commonly caused by moisture being present. Once one particle adheres another will adhere to it and then another, setting of an exponential sequence which will eventually bridge across the openings and cause blinding.

Samscreen’s shape wire screen is made from piano wire, which allows each individual wire to independently vibrate. That allows materials to pass through more easily, and keeps aggregate from sticking to the individual wires. Additionally, Samscreen’s shape wire comes in three unique configurations, which means that you’ll find the perfect screen for virtually any application.

To find out more about Samscreen’s shape wire and woven wire replacement screens, contact us at , and one of our friendly, knowledgeable associates will be happy to help you determine just the right screening product for your application.

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