Woven Wire Screens Compared with Polyurethane Screens

Two families, two kinds of behaviour

Woven wire screens and polyurethane screens are the two families buyers most often need to choose between, and they differ in construction before they differ in anything else. A woven screen is woven from wire into a mesh, giving an open, flexible surface whose openings follow the weave. A polyurethane screen carries a resilient surface, either as a plate or as a composite metal screen, whose openings are set in the surface rather than woven. That construction difference drives everything else: flexibility against resilience, an open woven pattern against a set pattern, and a surface that flexes with the equipment against a surface that absorbs impact.

Neither construction is better in general. A woven surface suits tasks where flow across an open, flexible mesh matters most, while a polyurethane surface suits tasks where impact or wear dominates. A buyer who asks which family is better without describing the task will receive an answer that assumes a task, and that assumption may not match the real one. The comparison below therefore stays with behaviour, and the inquiry is where the task decides.

How the two families behave during screening

During screening, a woven surface vibrates with the equipment and lets material separate across an open pattern, which suits dry, free-flowing feeds and high-volume separation. A polyurethane surface absorbs the impact of heavy material dropping onto it, which suits feeds where impact or wear would shorten the working life of a woven surface. Where the feed is damp and sticky, neither family is automatically the answer: a woven surface may clog, a polyurethane surface may also narrow, and the self-cleaning family may be the one worth considering instead.

Maintenance differs too. A woven surface is inspected and replaced as a mesh, while a polyurethane surface is inspected for wear in the resilient layer and in the openings set in it. This site publishes no wear figures for either family, so a buyer should not compare them on assumed working life. The inquiry should describe the feed and ask the supplier what it can say about wear and replacement for each family under that feed, so the comparison rests on the supplier's answer rather than on a borrowed number.

How to choose between them for one task

The choice between woven and polyurethane for one task should follow the feed description. If the feed is dry and free-flowing and the priority is separation across an open surface, the woven family is the natural starting point. If the feed is heavy and impact or wear dominates, the polyurethane family is the natural starting point. If the feed is damp and sticky, the buyer should pause and consider the self-cleaning family before settling on either of the two families compared here.

Whichever starting point the task suggests, the inquiry should name both families and ask the supplier to compare them for the stated task. Naming both prevents the supplier from assuming the buyer has already decided, and it invites an answer that addresses the actual feed. The inquiry should also cover certificate scope, minimum order, and lead time for the family that emerges, so the commercial questions are settled alongside the technical ones.

Questions to settle when comparing woven and polyurethane screens

• Is the feed dry and free-flowing, heavy and high-impact, or damp and sticky?
• Does flexibility and open flow matter more, or impact absorption and wear resistance?
• Should the self-cleaning family be considered before settling on either family here?
• What should the inquiry ask the supplier to compare, and what else should it confirm?

Related pages

• Woven wire screens
• Polyurethane screens
• Screen mesh selection guide