OPTIMA spiral cylinders are produced with diameters up to 1,022 mm and a length of 5,500 mm. OPTIMA precision filters made by high-precision automatic welding machines, on the other hand, cover a range from 23 mm to 305 mm in diameter.
All OPTIMA products are distinguished by their exceptionally solid construction and are designed for robust use. The considerable compressive strength of the filter tubes can be further increased by reinforcements such as an internal square spiral. Specially developed profiles can give slot widths of up to 6 µm.
In the axial version the slot-forming profiles run parallel to the longitudinal axis of the wedge wire screen cylinder.
The cross bars are spirally wound around the profile from outside and are resistance-welded, as in the radial slot version. The inside filter surface, i.e. the working surface, is smooth. It is produced either directly as a cylinder or, alternatively, from a plain sieve panel which is then re-rolled. The special feature here is the internal smooth screen area, ideal for cleaning with a stripper.
FITO (Filtration Inside to Outside) with working surface inside
The flat sides of the triangular slot performing profiles are welded to the internal cross bars.
The smooth inside working surface is interrupted by the cross bars. Cleaning generally takes place by means of counterpressure flushing.
FOTI (Filtration Outside to Inside) with working surface outside
The triangular slot performing profiles are welded to the internal cross bars with the wedge-shaped side on the inside.
In this frequently used design, the outside filter surface, i.e. the working surface, is smooth, which allows potential accumulated solid matter to be cleaned off easily.
The latest OPTIMA innovation with a square filter aperture adopts a new application concept.
This patented design can, according to preference, be fed from both sides with perfectly positioned radial and axial apertures.
These high-precision filter tubes have advantages particularly for fibrous media. The special profile geometry allows the creation of very small square apertures of up to 50 µm.
OPTIMA slotted wedge wire screens are used mainly for solids/liquids separation in a virtually unlimited range of situations. These can be dewatering pipes, filter cartridges, screen baskets, filter drums or centrifuge screen
More
The successful separation of materials into different phases, largely in the field of solids/liquids separation, is a top-priority challenge in many industrial sectors.
More
OPTIMA slotted screen baskets are produced using a qualitatively demanding process to give a high degree of fitting accuracy for the best possible separating performance.
More
