It has been estimated that over 50% of the materials used in all industrial applications were at some stage in a powder form. These powders need to be transported, injected, propelled and be able to pass through various process stages before they achieve their final form. This final form may be a tablet, a suspension or indeed a powder formulation. The need to be able to measure, control or test for reproducible powder flow has been well established in many industrial applications. Powder flow characteristics are important for:

  • Reduction in cost of raw process materials: reject bad batches before processing
  • Maintenance of the optimum formulation for the process concerned
  • Reduction in process costs
  • Maintaining the quality and consistency of the final product
  • Maintaining process efficiency and costs by optimization of product storage, packing, handling and transportation
  • Maintaining powder quality from different suppliers or from the same supplier over a long time period
  • Development of new processes where powders are required to be formulated into end products
  • Checking moisture effects: use of powders in open systems in different climates
  • Investigating and maintaining the quality of dry mixes


Pharma Test PTG-S5 Automated Powder Flow Analyzer is the latest analyzer used to measure the flow behavior of granules and powders in compliance with the EP <2.9.36>, EP <2.9.16>, USP <1174> Pharmacopoeia and ISO 4324 standards. This instrument determines the powder flow time, the powder cone angle of the collected powder mound, the weight, the density and the volume of the powder cone. Furthermore, the EP “flowability” result is calculated by measuring the flow time of 100g of sample through a specified pouring nozzle.


  • Fully USP<1174>, EP<2.9.36>, EP<2.9.16> and ISO 4324 (12/83) compliant
  • Measure flow-time, cone angle, flowability, cone density and cone volume
  • PTG-ER stirrer included
  • Integrated analytical balance cell
  • Integrated dust protection bonnet
  • Built-in printer


  • Reduce process costs
  • Improve product consistency from batch to batch
  • Keep tight control of component powders, especially if they are natural products
  • Compare sources of powdered products
  • Provides an easy method to achieve quality control on bulk incoming component products
  • Provides an easy method for the control of dry and wet mixing, tableting, granulating, and capsule filling
  • Predict powder transport through conveyors, air lifts and in silos
  • Predict powder suitability for capsule and bottle filling
  • Predict product settling during transport, so called classification
  • Predict powder influence on tablet hardness and solid dosage form stability
  • Predict powder influence on tablet disintegration and friability
  • Integrated clear view dust protection hood




 Please contact us for more details.