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Why flip-flow screening handles what other screens cannot

5 June 2026 · 3 min read

Anyone who has tried to screen damp coal or sandy clay on a conventional deck knows the problem: the material blinds the screen, throughput collapses, and you spend more time clearing the deck than processing.

A different action

Flip-flow screening, such as the BIVITEC system we supply, works on a dual-vibration action that runs at higher intensity and acceleration than a standard screen. The screen mats flex, which stops material sticking and keeps the apertures open even on awkward feeds.

The result is a low blinding rate, longer run time between stoppages, and a cleaner separation on materials that would otherwise need drying or pre-treatment first.

Less downtime, easier maintenance

A screwless design means a screen mat can be changed in well under an hour, so the maintenance penalty that comes with high-intensity screening is much smaller than operators expect.

For damp, stalky, leafy or clay-bound material, it is often the difference between a line that runs and one that constantly stops.