Dale Natoli explains how improved tablet quality can be achieved by checking a number of vital inspection points
QUALITY CONTROL
nspecting tooling and press components for wear could be the most important step in improving tablet quality and process effi ciency. Certain inspection points are easy to overlook yet can cause considerable tablet quality issues and limit tool life. Implementing the following inspection points will assure physical tablet quality and mitigate possible damage to the tooling and tablet press.
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WORKING LENGTH Working length is the most critical punch dimension when using a rotary press and is responsible for the consistency of tablet parameters related to weight, hardness and thickness. T e working length dimension is the value from the head fl at to the deepest area of the punch tip cavity and measured directly and not from a value derived from subtracting the cup depth from the punch overall
