In all probability more wire cloth is fabricated using double crimp than any of the other weaves shown. Double crimp has the wires in both directions evenly crimped, and are woven over and under giving the wire cloth the greatest vibrating quality of any weave. The uneven surface of this weave helps to break up the material being screened and increases the through put. It is excellent in weaving small openings and will give accurate sizing. When large openings are required, double crimp is apt to lose its accuracy, since it does not definitely lock the wires in their places as does lock crimp.

This weave is generally used where heavy objects are being screened, and accuracy of the openings is imperative. It is similar to double crimp except the crimps are more pronounced, and the wires are not free to move if some heavy object hits them. Scalping operations are apt to get better service from their wire cloth if they would specify lock crimp. Lock crimp cannot be manufactured in all openings and wire sizes. It is best only to specify lock crimp when the opening is at least four times the wire size; however, if necessary it can be used when the opening is three times the wire size.

(Standard is .437 inch diameter wire and larger)
This weave is best suited for requirements which desire to eliminate as much breakage of the material being screened as possible. Flat Top has all the crimps on the under side, and breakage is held to an absolute minimum. The absence of humps on the top side gives more uniform wear, and less abrasion occurs. Flat top weave will give relatively accurate sizing for the life of the panel. Due to the wires being alternately crimped, it is not as "live" as the other types of weaves. Wire cloth woven in flat top gives very good results in the larger openings required for scalping operations.

The primary purpose of the rectangular or slotted opening wire cloth panel is to obtain more through capacity at the expense of sacrificing some accuracy in sizing. This type opening gives a high percentage of open area and considerable freedom from clogging or blinding. If high tonnage of dry material is desired, the long side of the opening should be perpendicular to the flow. If freedom from blinding or clogging is required the long side of the opening should be parallel to the flow of the material. Always be sure to specify the directions the slots are to run. The length to width ratio for this opening is approximately 2.

By lock crimping the warp wires and double crimping the filler wires a much greater length to width ratio is possible with good stability. The maximum practical ratio depends on the wire size. With large wire a slot length as much as 12 times the opening width is practical; with small wire a slot length 4 times the opening width may be the limit. Beyond these limits and for other problems the triple shoot or no blind is recommended.

This type of rectangular opening is commonly referred to as triple shoot due to it having the filler wires in groups of three. Usually the warp or longitudinal wires are smaller in diameter than the filler wires. This type opening is ideal for screening wet materials or materials having a great tendency to blind the openings. The smaller warp wires have a tendency to set up a slight internal vibration which, added to the vibrations induced by the vibrator or shaker, helps to eject any objects that have become caught in the openings.