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The Pulmac Masterscreen Pulp Fractionator is No Longer In Production

Mechanically separates fibres from contaminants, including stickies and shives

Shive analysis enables the optimisation of digesters, cleaners, refiners, grinders and screens. Analysis of stickies enables problems that occur in repulpers, cleaners and screening to be pinpointed.

This essential information can lead to a reduction in the frequency of dirt, shives or stickies in the final product and an increase in profitability.

The unit is fully automatic and has excellent reproducibility. There are a minimal number of operator actions and it is capable of screening up to 100 g (oven-dried equivalent) of sample, depending on the pulp quality. Fibres pass through a laser-cut precision screen plate and go to waste. The retained rejects are washed out of the screening chamber and distributed onto a filter paper, which is then extracted for stickie, shive dirt or contary analysis. Quantifying the rejects can be easily achieved using the Apogee SpecScan system.

The precision, reproducibility and speed of the MasterScreen™ make it the industry standard in many production and R&D settings.


  • Rapid results – displays in less than 10 min
  • Fully automatic drainage – approximately 10 min with 50 g ODE
  • Laser-cut precision screen plates – available in two standard sizes – 100 or 150 µm
  • Autofilter
    • for quick deposit of contaminants
    • air mix ensures even fibre distribution on a 20 cm filter paper
    • cartridge format enables easy removal and replacement of filter display
    • vacuum system removes water automatically
  • Feed tank mixer motor ensures a uniform consistency delivered to screening chamber
  • Programmable controller allows multiple test methods
Pulmac Masterscreen Pulp Fractionator

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01223 492081