Join the 21st century and say goodbye to your sieves for particle size measurement!

1. 3D Image Analysis Systems
Versus Sieving
For particle size measurement

2. Sieving

3. Sieving is an ancient size measurement technique dating
back to Roman times.
It has a number of disadvantages when compared to a
modern 3D image analysis system.

4. • Sieves are 1 dimensional: i.e. only measure 1 parameter
which is width/length in a specific orientation
• Results are also given in a single distribution of mass %
• Sieve analysis is time consuming – 15 to 30 minutes
(Not including result calculation)

5. • Operator error is common with such a repetitive task
– Sieve fractions not being collected correctly
– Misweighing of size fractions
– Data transposition errors
– Miscalculating of size distribution
• Sieves are unreliable – worn sieves result in finer
distributions
– Certification and/or replacement can be costly and is seldom
done in the recommended time frame

6. 3D Image Analysis

7. • 3D Image Analysis is a fast and efficient method of
measuring particle size distribution, and has a number of
key advantages over sieving.

8. • Huge range of particle sizes can be measured visually
– 4 microns up to well over 120mm
• Shape parameters are recorded in addition to size
– 32 different parameters recorded in total
– Previously run samples can be remeasured with different
parameters
• 3D measurement gives length, width and thickness

9. • It is possible to do online analysis
• System is extremely reliable due to simple construction
• Slurries and wet suspensions are also able to be analysed

10. • Analysis is typically 5 to 10x faster than sieving
• Full automation ensures little to no operator error
• Automatic calibration is performed to ensure good
results
• Every particle is measured separately

11. • Data is easily correlated and displayed as sieve fractions
if required
• Data reporting can be customised for size and shape
parameters, for example:
– Sintered pellets: Need sphericity in addition to size
– Granular fertiliser: Need sphericity and surface roughness in
addition to size
– Reflective glass beads – Needs circularity, transparency, and
curvature in addition to very accurate size classes.

13. Go to
www.impautomation.com
For more information