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There are Manual and Automatic Tablet Press
Manual Tablet Press : Generally, is of single punch or multi-tip single punch. They are mostly used for research and/or initial pharmaceutical product development work for evaluating API’s compaction characteristics for direct compression or dry granulation method of tabletmanufacturing. Making disc of API for intrinsic dissolution test, etc. e.g. Carver Press, NatoliLaboratory Tablet Press. The compression force is generally exerted by spring load pressure,pneumatic pressure or hydraulic pressure.
Automatic Tablet Press: Based on their design and running principle can be of two types; i) Single punch Tablet Pressand ii) Rotary Tablet Pressi)
i) Single punch Tablet Press:
These single punch automatic tablet press aregenerally used for making slugs for dry-granulation process or for low volumeproduction of some shaped tablet for body cavity (vaginal or anal) insertion. e.g.Manesty or Stokes, F3 Tablet Press: Single station, 4-ton compression pressure,7/8″ max tablet diameter, 11/16″ max depth of fill, rated 42-85 tablets per minute.
ii) Rotary Automatic Tablet Press: is a mechanical device that unlike the singlepunch tablet press has several tooling station which rotates to compressgranules/powder mixture into tablets of uniform size, shape (depending on thepunch design) and uniform weight. It was developed to increase the output of tablets.
There are many stages that occur during tablet production on the rotary tablet press and a fullunderstanding of their functions is crucial to the success of producing a quality tablet.
