Manual Powder Flow Tester

Manual Powder Flow

** New** PharmaTest PTG-100 Manual Powder Flow Tester for Flowability and Angle of Repose

The PTG-M100 manual powder tester is 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 is used to determine the powder flow time and the powder’s angle of repose. By using a laboratory balance also weight, density and the volume of the powder cone can be calculated. Furthermore, the EP “flowability” result can be calculated by measuring the flow time of 100g of sample through a specified pouring nozzle according to the flow through an orifice with funnel method.

The instrument consists of a solid base plate with a stand and a conical funnel, which can be equipped with different pouring nozzles. The optional PTG-M manual stirrer may be used for powders which do not flow well. The height of the stirrer and funnel can be adjusted freely up and down and locked into place without a risk of twisting and without using any tools. The instrument includes a powder collecting tray, which can be easily removed for cleaning. The base plate with integrated spirit level can be adjusted via three points to ensure a level installation.

To start the test insert the powder into the funnel and open it by using a slider. To measure the angle of repose, the product flows through the funnel and is collected on a 100mm diameter dish forming a cone. Once the powder flow stops, use the supplied digital height gauge to measure the height of the cone at its tip. Since the surface of the collecting dish is completely filled, the cone angle can easily be calculated.

To measure the flowability, a stopwatch and a laboratory balance are used to check the time it takes for 100g of sample to flow through the funnel and to be collected inside a plastic beaker. Changing between these modes of operation is easy and does not require the use of any tools.


  • Fully USP <1174>, EP <2.9.36>, EP <2.9.16 and ISO 4324 (12/83) compliant
  • Measure angle of repose, flow-time and flowability using the same instrument
  • Cone height measurement for angle of repose via included digital height gauge
  • Flowability measurement using stopwatch and analytical balance (not included)
  • Optional (manual) stirrer for badly flowing powders available
PTG 100M

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