Filtration and dewatering screens

These screens are used in a multitude of industries for draining, dewatering, drying or filtration of products. The slotted screens, made of stainless steel, separate solids from liquids.

In the past, they were mainly used in quarries, mines and sand-pits to process sand, aggregates or coal. Nowadays, they find uses in industry like fluid filtration or in food processing.

There are mainly two techniques:

• Welded technology
• Looped technology

GIRON offers both these versions depending on your applications and issues. In both cases, the product passes over a completely smooth surface made possible by successive wires. The space between each profile reveals a slot, gap or crack.

In the welded version, the wire is manufactured by rolling from a round wire. Rolling is the most common method which generates a profile with slightly rounded edges. These profiles are then welded to cross members positioned perpendicularly.

In the looped version, the trapezoid wire is manufactured by stamping from a round wire. Bypassed profile slotted screens have been developed by GIRON for over 50 years. Stamping provides sharp edges allowing efficient dewatering. These profiles are then assembled on tubes. At GIRON, the steel is 7 mm in diameter and the loops have an interval of 70 mm.

This technique ensures an unmatched open precision of gaps, mainly for hairline cracks. The screens can be delivered flat or curved, bare or with all types of reinforcements such as plates, brackets or other accessories.