SSSpinTester – Powder Strength Tester

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SSSpinTester

Powder Strength Tester

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:

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

Powder Strength and Density Values with Significant Benefits:

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    Small amount of sample needed for analysis
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    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
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    Fast results: a single data point in as little as 3 minutes, a 5-point flow function in as little as 15 minutes

SSSpinTester Specifications:

 Physical:
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    Length: 18in.

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    Width: 16in.

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    Height: 15in. (includes the feet)
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    Mass: ~22.5Kg or ~50lbs
Electrical:
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    Voltage: 85 – 264 VAC
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    Frequency: 50/60 Hz – Single Phase 9A
Environment:
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    Temperature: 0 to 50 °C (32 to 122 °F) –
    With RH maximum of 78%

Typical Applications:

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    Powdered Metals

    Obtaining strength values at low consolidation pressures allows prediction of optimal powdered metal behavior. The SSSpinTester can measure the strength of heavy metal powder at actual fill pressure values for direct correlation to processing conditions

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    Additives (for energy)

    Additives are typically introduced to coal combustion streams through pneumatic conveying. Measuring the strength of these powders at low to moderate compaction pressures can help with conveying this material.

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    Ceramics

    Density variations of sintered ceramic powder can cause significant problems with dimensional tolerances of the final parts. Filling pressures are very low and the density variations depend on the strength of the material. Segregation can be prevented by the cohesive properties of the bulk

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    Pharmaceutical

    Strength testing during formulation of pharmaceutical API powders is possible when only a very small quantity of the material is available. The weight variance from tablet to tablet is directly related to how the die fills. The filling depends on the strength of the material at low pressures

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    Food(fine powders only)

    Food engineers need a quick test to measure the cohesion properties (strength and density) to determine if a particular mix will cause flow problems in the unit operation being used at the food plant. The SSSpinTester offers a fast and accurate measure of material strength at a full range of consolidation pressures.

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    Chemical

    Often an engineer wants a quick test to measure the cohesion properties (strength and density) of a particular formulation. The optimal powder is one that has enough cohesion to prevent segregation, but not enough to cause density variations

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    Catalysts

    Measuring the strength of catalyst material at low consolidation pressures can allow the scientist to determine if a catalyst will channel and correlate this information to the life of the catalyst in a fluid bed.  The SSSpinTester measures the cohesiveness (strength and density) of the catalyst powder at actual process operating conditions

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    Cosmetics

    Decisions can be made regarding the size and shape of the powdered ingredients to optimize packaging success. The SSSpinTester can give the formulator and process engineer the data at actual pressures that are needed for successful packaging

Application Notes: