Square Apertures

DOUBLE CRIMP SCREEN TYPE A
DOUBLE CRIMP SCREEN TYPE A
LOCK CRIMP SCREEN TYPE D
LOCK CRIMP SCREEN TYPE D

For accurate screening results or for separating longitudinal particles, the use of square wire cloth is imperative.

When processing coarser bulk materials, the crimping of the wire before weaving is decisive for the screening performance. With their rough threedimensional surface Double Crimp and Lock-Crimp weaves ensure excellent shifting of the material to-be-screened. The chances of the material to pass the apertures and be screened are significantly higher. Furthermore, fine particles are conveyed to the screen surface faster, accelerating the entire screening process. The faster the fine particles are screened, the bigger the surface available for screening the critical near-sized particles. However, in case of particularly heavy, abrasive materials the tops of the wire crimps may wear down faster than the other parts of the wire.

This effect is excluded with the Flat Top crimp that creates a smooth surface on one side. The flat surface ensures consistent wear over the entire screen section. With inclined screening machines, however, the flat surface will have a negative effect on the screening efficiency. The material travels over the screen surface faster. Consequently, fine particles are slower in getting to the surface of the screen, and the chance that all particles are screened is smaller. For this reason, when processing difficult-to-screen materials it is recommended to use Flat Top screens only with horizontal vibrating screening machines.

 

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