Rectangular Apertures

For round or cubic particles, it is an option to use rectangular or slotted wire cloth. Thanks to their relatively large open area, they ensure higher output with smaller clogging tendency. If the long slot runs parallel to the material flow, a higher output is achieved. If it runs crosswise to the flow direction, more accurate cuts are achieved. The larger the length-to-width ratio, the greater the flexibility of the wire cloth and the better the self-cleaning effect.

By default, rectangular apertures have a length-to-width ratio of 1:3. Wires of the same diameter as for the corresponding square apertures are used. The open area is larger than with a square aperture, ensuring higher throughput. However, the wear lifetime of the screen section is shorter due to the lower weight. The Haver & Boecker product range has two special rectangular apertures that provide for convincing solutions.

more about wire cloth specifiations

more about types of weave

This stands for Tonnage Capacity, a wire cloth consisting of fine rectangular apertures with a length-to-width ratio of 1:6 to 1:15. The sleek shape of these apertures permits the use of larger-diameter wire than with corresponding square apertures. While the open area remains approximately the same, the weight is more than double, which ensures that the wear life of TON-CAP is significantly longer with comparable throughput capacity TON-CAP is suitable primarily for abrasive materials when a long wear life is a top priority.

 

 

TON-CAP

Aperture widthWire diameterWeightOpen
screening
area
wdGAo
mmmmkg/m²%
0,18 × 2,650,45 / 0,502,6024
0,25 × 1,600,40 / 0,562,5529
0,265 × 4,500,56 / 0,632,9528
0,30 × 2,000,45 / 0,562,5531
0,355 × 2,500,45 / 0,632,4535
0,375 × 2,650,40 / 0,501,9041
0,40 × 2,500,56 / 0,713,1033
0,45 × 3,550,45 / 0,632,1043
0,475 × 3,000,50 / 0,712,5539
0,53 × 3,350,45 / 0,632,0046
0,53 × 3,350,63 / 0,903,4536
0,56 × 3,55 0,50 / 0,712,3044
0,56 × 3,550,56 / 0,802,7541
0,63 × 4,250,63 / 0,903,0041
0,71 × 4,250,71 / 0,903,2541

Contrary to TON-CAP, increasing the open area is of primary importance in EGLA-MAX which has extreme aperture proportions of up 1:25. The wire diameter is only minimally bigger than for the corresponding square apertures so that both qualities have comparable weights and thus wear properties.

To ensure a tight connection between warp and weft wires and to strengthen the stability of the wire cloth, EGLA-MAX has several weft wires woven in with each group of cross wires. Thanks to the larger open area, throughput and capacity of the operation are increased. TON-CAP is suitable primarily for abrasive materials when a long wear life is a top priority. The extremely long aperture significantly reduces the tendency to blinding and pegging. Furthermore, the EGLA-MAX surface is flat on one side, which ensures consistent wear over the entire screen section.

EGLA-MAX

Aperture widthWire diameterWeight

Open
screening
area

wdGAo
mmmmkg/m²%
0,63 × 30,001,00 / 2 × 0,804,1537
0,71 × 30,001,00 / 2 × 0,803,9739
0,80 × 30,001,00 / 2 × 0,803,7842
0,90 × 30,001,00 / 2 × 0,803,6045
1,00 × 30,001,00 / 2 × 0,803,4348
1,12 × 30,001,00 / 2 × 0,803,2550
1,25 × 30,001,25 / 2 × 1,004,3747
1,40 × 30,001,25 / 2 × 1,004,1450
1,60 × 40,001,25 / 2 × 1,003,7854
1,80 × 40,001,25 / 2 × 1,254,3653
2,00 × 40,001,40 / 2 × 1,254,1355
2,50 × 40,001,40 / 2 × 1,253,6660
3,15 × 50,001,60 / 2 × 1,403,8963
4,00 × 63,001,80 / 2 × 1,604,0466
5,00 × 63,001,80 / 2 × 1,603,5270
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