Spinning Rifflers - sampling of particulates

Citation

(1999), "Spinning Rifflers - sampling of particulates", Pigment & Resin Technology, Vol. 28 No. 5. https://doi.org/10.1108/prt.1999.12928ead.010

Spinning Rifflers - sampling of particulates

Spinning Rifflers - sampling of particulates

Keywords: Microscal, Powder coatings, Sampling

Powders and granulates tend to segregate during storage, handling, and transportation. Frequently the effect is not visually obvious. Unexplained fluctuations in results, processing requirements, or the final product's properties or yield may be the first manifestation of particulate segregation at an earlier stage. Research and development work programmes can be delayed or derailed for analogous reasons.

The waste and extra costs caused by un-recognised fluctuations in a material's homogeneity are generally explicable and thus believed to be avoidable given the appropriate use of the range of spinning rifflers (SRs).

There are now upwards of ten SR models and variants, each claiming representative powder sampling close to the theoretically attainable accuracy. Starting with micro spinning riffler of 0.025-litre capacity Plate 5 ), through the 1-litre, 5-litre, 10-litre, and 40-litre models, this range of instruments claims the ability to assist in the research, development, and production fields where raw materials, intermediates and final product properties may have a controlling and sometimes critical influence on the final outcome.

Plate 5Micro spinning Riffler - 25ml capacity

Further details are available from Microscal Ltd. Tel: +44 (0) 208 969 3935; Fax: +44 (0) 208 968 6309.