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.