The use of a pneumatic compensator at pre-compression on Courtoy rotary
tablet presses allows for
extended dwell time as well as
an extremely accurate
weight control system.
The movement of the
top compression roller in an air cushion generates an extended compression
profile at pre-compression resulting in better de-aeration of the powder and a
more uniform granule distribution in the die prior to final compression.
This results in better quality tablets and eliminates the risk of tablet
capping.
The tablet weight control system is based on the
measurement of thickness variations under constant force and is exceptionally
accurate. It reacts very quickly to any variation in the density of the
granulate.
The air compensator also acts as a punch overload relief
system that is more sensitive and faster than any hydraulic or
electromechanical relief system.