Particulate Systems’ fully automated SSSpinTester is suitable for testing yield strength and flowability for a variety of 
fine powder applications to include pharmaceuticals, catalysts, cosmetics, ceramics, chemicals, powdered metals and much more. It uses centrifugal force to measure the unconfined yield strength of fine powders requiring a very small amount of sample. The instrument provides repeatable and consistent data by first consolidating the material using centrifugal force to compress the sample inside the sample holder. After the initial compaction step, it then completes the analysis using the same centrifugal force to determine the yield strength of the material. This instrument provides measurements at an extended pressure range (0.05 kPa to 72 kPa). The device is capable of fast results, collecting a single data point in as little as three minutes and a five-point flow function in as little as 15 minutes. Low-pressure strength can be applied to segregation on piles, capsule filling, fluidization, tablet feed, dispersion models and other low-pressure unit operations or formulation needs. The instrument also operates at the more traditional high-consolidation pressures.
Particulate Systems
http://www.particulatesystems.com/Products/SSSpinTester-Powder-Strength-Tester.aspx