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PTB 420 Automated Hardness Test Instrument with Balance Connection

The automated tablet testing instrument PTB 420 is a dual test mode instrument to determine the diameter, thickness and hardness of tablets. The instrument is made in strict compliance with the EP <2.9.8> and USP <1217>Pharmacopoeia.


  • Fully USP <1217> and EP <2.9.8> compliant
  • 4 results of the same sample: thickness, diameter, hardness and weight (via connected external balance)
  • Dual force mode instrument with linear speed increase and linear force increase modes
  • Document all results on external USB printer (PCL5 capable)
  • Multiple point validation procedure for all measurement stations built-in
  • Programmable print-out of force increase curve