Isopak Limited

To meet the demands of universities and research laboratories, the CPR-6 is available in instrumented form. Load cells are fitted so that the machine can detect and record the compression force on the upper and lower punches, as well as the position of both punches and the ejection force required to discharge the tablet from the die.  Data is displayed as a value of the maximum force in the format of a series of curves on a Cartesian axis on a PC included with the system.

This data allows the operator to evaluate the compaction of the powder granules and therefore the compressing force necessary to obtain the required tablet hardness.

The unit is supplied as a complete package, including a dedicated trolley, a PC with screen, keyboard and mouse and the required software to record and display all the necessary data.

The instrumentation can display the forces on both upper and lower punches in real time with peak values being displayed for each cycle. This can be recorded for a number of cycles, and displayed on screen for analysis. The angular position of the machine and the vertical location of the upper punch relative to its entry point into the die during the compression phase can be shown. This data can also be extracted for further analysis using MS Excel.  The instrumented tablet press benefits from all the features of the standard version.

Because of the nature of the load cells, calibration can be carried out off site. The cells and amplifiers are simply returned to the manufacturer, recalibrated independently from the machine and then refitted, eliminating the need for site visits for regular calibration of the instrumented machines.