Common stages occurring during compression
Stage1: Top
punch is withdrawn from the die by the upper cam Bottom punch is low in the die
so powder falls in through the hole and fills the die
Stage2:
Bottom punch moves up to adjust the powder weight-it raises and expels some
powder
Stage
3:
Top punch is driven into the die by upper cam Bottom punch is raised by lower cam
Both punch heads pass between heavy rollers to compress the powder
Stage
4:
Top punch is withdraw by the upper cam Lower punch is pushed up and expels the
tablet. Tablet is removed from the die surface by surface plate
Stage
5:
Return to stage 1.
Stage Occurring during Compression image:
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