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There are 2 types of tablet presses: single-punch and rotary tablet presses. Most high-speed tablet presses take the form of a rotating turret that holds any number of punches. As they rotate around the turret, the punches come into contact with cams which control the punch's vertical position. Punches and dies are usually custom made for each ...
The compression is done either by a single-punch machine (also called stamping press, achieves an output of approximately 200 tablets per minute, making it ideal for manufacturing small batches of tablets) or by a multi-station machine (rotary press). The tablet press is a high-speed mechanical device. It squeezes the ingredients into the ...
The tablet pressing operation (click image to enlarge) An old Cadmach rotary tablet press. Tablet presses, also called tableting machines, range from small, inexpensive bench-top models that make one tablet at a time (single-station presses), with only around a half-ton pressure, to large, computerized, industrial models (multi-station rotary ...
The upper and lower punches compress the tablet in two steps as they travel across heavy compression rolls. The tablet is then ejected from the cavity and the process repeats. At full speed, a typical press can make over 250,000 tablets per hour. Reason Animation shows the complex, multi-step process of tablet pressing in a convenient view.
Punch Holder: This plate is used to accommodate the punches of press tool. Punches : To perform cutting and non cutting operations either plain or profiled punches are used. Die Plate: Die plate will have similar profile of the component where cutting dies usually have holes with land and angular clearance and non cutting dies will have profiles.
Columns on different punch cards vary from 5 to 12 punch positions. The method used to store data on punched cards is vendor specific. In general each column represents a single digit, letter or special character. Sequential card columns allocated for a specific use, such as names, addresses, multi-digit numbers, etc., are known as a field.