• Chromatech Scientific

PTB420 Auto Fully Automated 4-in-1 Tablet Testing Instrument

The fully automated 4-in-1 tablet testing instrument PTB 420 Auto is a dual test mode instrument to determine the weight, diameter, thickness and hardness of tablets. The instrument is made in strict compliance with the EP <2.9.8> and USP <1217> Pharmacopoeia.


  • Tablet hardness testing in full compliance to USP <1217> and EP <2.9.8> Pharmacopeia

  • 4 results of the same sample: thickness, diameter, hardness and weight (via integrated Sartorius analytical balance)

  • Dual force mode instrument with linear speed increase and linear force increase modes

  • Stepless adjustment of the linear force or speed increase rate

  • Document all results on external printer

  • Multiple point validation procedure for all measurement stations built-in

  • Programmable print-out of force increase curve


  • Test up to 25 samples fully automatically by using the integrated feeder; feeder can be refilled at all times for more than 25 samples in one test

  • Automatically determine the individual sample weights using the integrated Sartorius analytical balance

  • Automated positioning of samples in the testing area by unique alignment jaws

  • Touch-less measurement of sample thickness

  • Sophisticated user and method management system included

  • Quick start functionality to start testing with minimal preparation

  • Quick menu navigation by using a large color LCD and a click wheel

  • Select either linear force or linear speed increase (dual mode selection)

  • Entry of time and date

  • Enter a 12 digit batch number

  • Dual point adjustment of the load cell for the hardness test station

  • Multiple point validation (calibration)

  • Hardness testing in compliance with the EP <2.9.8> and USP <1217> Pharmacopoeia

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