Why this test matters
Powders often behave unpredictably when they are in motion. Instabilities during flow can cause feeding issues, segregation, or inconsistent layer deposition. The GranuDrum dynamic powder test helps companies identify these risks early by analyzing powder behavior under controlled rotation. It supports reliable processing, repeatable quality, and confident scale-up. The test is particularly valuable for additive manufacturing powders, pharmaceuticals, chemicals, battery materials, and fine powders used in advanced manufacturing.
How the test works
The GranuDrum test simulates powder flow during handling and feeding. A small quantity of powder is placed inside a transparent rotating drum. As the drum rotates at controlled speeds, a camera continuously records the powder surface. Image analysis tracks changes in the flowing powder front. From these observations, flow stability and cohesion indicators are calculated. Key parameters include rotation speed, test duration, drum filling level, and ambient conditions such as temperature and humidity.
What you learn from this test
The test delivers quantitative metrics such as dynamic flow index and flow stability. These results reveal how sensitive a powder is to motion and operating speed. Companies use the data to compare powders, assess batch consistency, and optimize process parameters. The insights help select suitable materials, reduce process interruptions, and support qualification decisions linked to quality and performance.
