SSSpinTester Powder Strength Tester

SSSpin Tester - Powder Strength Tester

SSSpin Tester - Innovative Powder Strength Tester

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The fully automated SSSpinTester uses the science of 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, the SSSpinTester then completes the analysis routine using the same centrifugal force to determine the yield strength of the material. Using the latest advancements in technology, this instrument provides measurements at an extended pressure range. This provides actual performance results without the need to extrapolate data leading to inaccurate results.

SSSpinTester Features

  • Fast analysis – results in less than fifteen minutes
  • Small amount of sample required – 0.5 cc
  • One test acquires full data set – no multiple measurements required
  • Extended pressure range – 0.05 kPa to 72 kPa
  • Fully automated control with software application – provides graphical data reports
  • Direct measurement eliminates the need for extrapolation of data
  • Small footprint requires minimal bench-top space
  • Bonus testing cell, micro-spatula for easy fill, demonstration video, and one-year limited warranty on parts and labor are standard
  • Certified CE compliant

Powder Strength and Density Values with Significant Benefits

  • Small amount of sample needed for analysis
  • Low consolidation (also known as compaction) pressures – 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. Also runs at the more traditional high-consolidation pressures
  • Fast results: a single data point in as little as 3 minutes, a 5-point flow function in as little as 15 minutes 

Bulk Properties of a Cancer Drug API as Measured with the SSSpinTester
SSSpinTester - Article

Comparison of New Bulk Strength Measurement Technique with Traditional Schulze (direct shear measurements) Method.
SSSpinTester - Article

Accurately Predicting Hang-Up Issues in Process Equipment 
SSSpinTester - Case Study of New Bulk Strength Measurement Technique with Traditional Schulze Method. Poster

Effect of Particle Shape on Unconfined Yield Strength

Fine Powder Design: Flow Rate Control

Rathole Stability Analysis for Aerated Powder Materials

Contact Information:

Patrick Wommack
General Manager
Office: 770.662.3681
Cell: 404.229.8384
U.S. Sales: