Some tablet press components will need to be re-calibrated on a regular maintenance schedule to ensure that pressed tablets stay within allowable tolerances.
For example, amplifiers and load cells must be maintained to ensure the accuracy of key processes such as compression force or dosing station adjustments.

Tablet presses and their sub-systems may require re-calibration for myriad reasons, such as:

• Normal wear and tear
• The tablet press has been moved out of its compression room for maintenance or cleaning
• Components may have been jostled, or tooling has become worn
• Environmental factors that impact calibration (temperature, humidity, air pressure)

Different press users approach calibration in a variety of ways. There are no hard and fast protocols for re-calibrating equipment or timing for similar maintenance practices, which leaves re-calibration up to the discretion of the operator. As such, even the intervals at which calibration occurs might vary significantly from one operation to the next.

Some press users opt to calibrate on a schedule. These scheduled calibrations often occur annually or bi-annually. This is an excellent way to practice preventative maintenance and ensure that presses are always running at peak performance. For machines that experience heavy use, operators may wish to perform calibrations more frequently.

There are additional variables to scheduled calibrations beyond their frequency. One such variable encompasses the recalibration process itself—most notably, who performs it. While some users may elect to invest in the necessary equipment to carry out calibration procedures internally, most tablet manufacturers opt to have a professional perform the relevant procedures on-site at regularly scheduled intervals.

The trained and certified service engineers at Fette Compacting America can conduct calibration procedures on a variety of tablet presses, ensuring that equipment performs to its utmost ability.