Dynamic Image Analysis System Particle Size

The CAMSIZER® P4 Digital Image Processing Particle Size and Shape Analysis System provides rapid and precise particle size and particle shape distributions for dry powders and bulk material in the size range from 20 µm to 30 millimeters. This technique provides a wide variety of information about the sample, from a general size measurement, to shape parameters that can be closely correlated to specific performance characteristics. This also allows correlation to existing data from techniques as diverse as sieving, microscopy, and hand caliper measurement.

The CAMSIZER® P4 is a compact laboratory instrument for simultaneous measurement of particle size distribution and particle shape, number and density of powders and granules. The patented design is the only one to use two cameras and greatly extends the measurement range while maintaining accuracy and sensitivity throughout.

Thanks to the unique scanning of all particles and the newly developed fitting algorithms, the measuring results are 100% compatible to those of sieve analysis. This makes the CAMSIZER® P4 the ideal time and cost-saving alternative for incoming and outgoing controls and for in-process quality control.

Application Examples: abrasives, carbon products, pelletized carbon black, coffee, catalysts, fertilizers, food products, glass/ceramics, metal powders, pharmaceuticals, plastics, polystyrene, refractory products, salt, sand, sugar, and many others.

The CAMSIZER is manufactured by Retsch Technology GmbH and distributed in many parts of the world by HORIBA.

*Available in select countries.


Segment: Scientific
Division: Particle Characterization
Base product
Manufacturing Company: Retsch Technology GmbH
  • Improved data correlation to sieve analysis, including multi-modal distributions.
  • Sample optimized, intuitive software.
  • Additional shape parameters including sphericity, aspect ratio, convexity, symmetry, roundness, elongation, circularity, and surface texture analysis.
  • Language versions including English, German, French, Japanese, and Spanish.
  • Wide Size Range: 20 µm to 30 millimeters in one measurement with no hardware changes required; a 1500:1 dynamic range.
  • Measurement Principle: The instrument employs digital image processing to measure size, shape, number and density of solid particles.
  • High Resolution: Two linked, high resolution, full-frame cameras, with different resolutions, operating simultaneously, form an intelligent measuring system with a very wide dynamic range while still capturing images of all particles in the sample.
  • Monitor the particle size distribution with real-time calculation during the measurement
  • Image acquisition at 60 frames per second
  • High-intensity, long life stroboscope LED light source 
  • Automatic sheeting air to keep camera and light source windows clear of dust
  • Automatic measurement chamber vacuum eliminates velocity biasing by maintaining equal particle velocity independent of size, shape or density 
  • Sample introduction via automatic speed-controlled vibratory feeder
  • Automatic feeder hopper height control
  • 30 seconds to 4 minute analysis time, depending on sample type
  • ISO-traceable certified calibration reticle with a particle size distribution of 60 microns to 14 mm (maximum inaccuracy of 0.1 microns per object).
  • Every particle is analyzed from each pixel to each other pixel in all orientations before binning into 64 classes.
  • High resolution analysis in at least 1,000 up to 3,000 saved, size classes per run.
  • Ten user-selectable measurement size models for superb correlation to particle width, particle length or equivalent area to get excellent correlation to results from laser scattering, hand caliper measurements and sieve analysis.



  • Size Range: 20 µm - 30 mm with no hardware adjustments
  • Excellent dynamic range for measuring wide particle size distributions
  • High resolution for narrow mono-modal or multi-modal distributions
  • Reliable detection of smallest amounts (<0.01%) of oversized grains
  • Particle shape analysis (e.g. detection of agglomerates, broken particles or contaminations)
  • Flexible data evaluation thanks to the particle library and 3D Cloud
  • Fully comparable to sieve analysis results
  • Excellent reproducibility
Particle Analysis of Chocolate
Particle Analysis of Chocolate
Particle size of cocoa powder used in chocolate affects color and flavor strength. The industry refers to “mouthfeel” as a gauge of acceptability or rejection. If the particles are too large, it will not have a consistent creamy taste. Particle size also affects the level of bitterness when tasted.
CAMSIZER P4 Brochure
Size 2.9 MB


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