Natoli Engineering president, Dale Natoli, explains the importance of understanding punch length and cup depth in regard to punch wear and more.
Keyhole
Manufacturing tablets to a uniform hardness, weight, and thickness requires tablet press punches of consistent length. Using rotary tablet press punches of consistent length is critical, as their length directly relates to the uniformity of the hardness, weight, and thickness of the compressed tablets. If not correctly understood, tablet defects could be attributed to the wrong source. Thus, it is important to establish a punch inspection and maintenance program that will verify all punch lengths and cups are within dimensional tolerances.
Working Length