Fritsch Siebring square hole 4 mm blow bar insert P-14pl

Sieve ring 4 mm square hole 316L stainless steel for impact bar Sieve rings determine the final fineness of the sample. Sieve rings with square hole are recommended for rapid comminution of brittle materials to achieve medium fineness. They achieve greater throughput and less sample residue due to the larger open screen area. Sieve rings with trapezoidal hole and round hole are also offered. Sieve rings with trapezoidal perforations achieve additional comminution through increased shearing action. Sieve rings with round holes are also recommended for rapid size reduction of brittle materials to achieve medium fineness. They achieve a narrower grain width band. Sieve rings also available in other perforations.