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1. Dosage Control Various tablets have different dosage requirements, and large dose adjustments are achieved by selecting dies of different punch diameters. After the size of the die is selected, the slight dose adjustment is performed by adjusting the depth of the undercut into the middle die hole, thereby changing the actual length of the middle die hole after the back cover, to achieve the purpose of adjusting the filling volume of the drug in the die hole. Therefore, there should be a mechanism on the tablet press to adjust the original position of the undershoot in the die hole to meet the dose adjustment requirements.
2. Tablet Thickness and Compaction Control The dosage of the drug is determined according to the prescription and pharmacopoeia and cannot be changed. For the storage, storage and disintegration time limits, there is also a requirement for a certain dose of pressure during tableting, which will also affect the actual thickness and appearance of the tablet. Pressure regulation during tableting is essential. This is achieved by adjusting the amount of downstroke in the die hole. Some tablet presses not only have the upper punching down action during the tableting process, but also have the downward action of the undershooting, and the pressing process is completed by the upper and lower punching relative movements. However, the pressure regulation is mostly to achieve pressure regulation and control by adjusting the mechanism of the upper stroke.
The tablet press should produce the film for different requirements in the process of film production, but all need to follow the following principle of tableting mechanism.