Force Monitoring on Pharmaceutical Tablet Presses

Solutions for Force Monitoring on Pharmaceutical Tablet PressesThe quality (weight/density) of a finished formed tablet is directly related to the compression roll force to make it.  By controlling the compression force within certain defined limits, better part quality can be maintained. A tablet press force monitor can become an online tablet quality inspector.

Helm has a unique approach to measuring the force on high speed tablet presses. Using a precision machined and heat treated stainless steel load cell’s, compression forces can be accurately monitored. Typically system is configured for 2 channels of monitoring. The system can be expanded to include monitoring for part ejection and pre-compression force.

Key benefits of monitoring force on tablet presses:

  • Machine Protection
  • Tooling Protection
  • Tablet Weight & Density Control
  • Tablet Height Control
  • Detection of Forming, Score and Ejection Problems
  • Easier Machine Set-Up & Adjustment
  • Knowledge through SPC Data Acquisition

The systems feature trend sampling routines, to arrive at an average learned force benchmark for each channel. There are adjustable high & low tolerance alarms for each channel, established as a percentage of allowable deviation from the sampled values.

Helm has three monitoring options available.  Specialty input modules for Allen-Bradley PLC’s provide the strain gage input for the load cell transducer.  The Helm PTM and RLG systems offer solidly engineered stand-alone systems; the PTM a more sophisticated monitor with Windows Embedded OS and a touch screen display.

RLG Loadgard RLG-4 with Key
PTM Loadgard PTM Series withOUT Key 2676
A/B PLC Input Modules 5-units-7in-1557

The PTM has SPC capability on board and features data acquisition and downtime reporting.

All of the monitoring approaches provide for Ethernet connectivity.

All enclosures are available in stainless steel

For further details or questions please contact us at