Pharmaceutical manufacturer uses gyratory lab sieve to remove coarse particles

A major pharmaceutical manufacturer needed to sieve and deagglomerate 1-kg batches of pharmaceutical powders in 5 minutes through US 45 or finer mesh.

The problem? Most of the samples have agglomerates that require removal of coarse particles.

The solution? VORTI-SIV Model RBF-10 gyratory lab sieve uses a combination of variable speed frequency control, an SFA ultrasonic deblinding kit, and stainless steel disks to break up agglomerates. Among the benefits:

Minimal cleanup and product changeover. Model RBF-10 uses only two stainless steel sanitary product contact parts. This enables fast changeover. An optional removable dome or scoop feed cover supports dust-free sieving.

Deagglomerating sieve. Four highly polished, 2-in. dia stainless steel disks on the screen surface break the agglomerates. The RBF-10 mechanical gyration causes the disks to randomly impact agglomerates, reducing all lumps to fine powder.

SFA deblinding kit. A single phase 110/220 volt autotuned ultrasonic processor with a screen-mounted transducer supplies additional high-frequency energy. Screen blinding of the pharmaceutical powders is eliminated even with such difficult powders as magnesium or calcium stearate.

Variable speed. The RBF-10 uses a 3450 rpm electric motor. A digital frequency inverter enables the mechanical vibration to be controlled from 800 to 3450RPM. This feature improves the processing efficiency of each product sample.

For more information on the Model RBF-10, visit the MM Industries storefront on Pharmaceutical Online.

For more information: Vorti-Siv Div., MM Industries Inc., 36135 Salem Grange, Salem, OH 44460. Tel: 330-332-4958 or 800-227-7487. Fax: 330-332-1543.

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