Patent ID: 7032460

Claim:
A method for test pressing tablets by means of a rotary tabletting machine, which comprises a rotationally driven rotor a series of upper and lower rams, a die-plate with dies with which the rams interact, a control cam system for said rams, and a filling assembly in normal operation to continuously fill said dies in a filling position with said rotor rotating at production speed, further by means of at least one pressure station at which the material located in said dies is compressed into tablet, and a measuring device having a plurality of measuring positions which measures at least the compression force applied by said rams and the number of revolutions of said rotor, the method comprising the process steps below: a pair of rams selected for a single compression procedure is automatically moved to its filling position, a die or limited number of dies is filled with material with said filling assembly removed at least in part while said rotor is stopped, said rotor is set into rotation subsequently and is sped up such as to have the desired production speed in said pressure station, said rotor is stopped in said filling position after one revolution and signals or signal runs of the measuring positions are recorded while the rotor is rotating said one revolution and are provided to a computer for display and evaluation.