Freeness Inline Analyzer


  1. Accurate high frequency measurement
  2. Saves energy through optimized refining and drainage
  3. Allows closed loop refiner control
  4. Allows fast response to process variations
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SPF-5500: Freeness analyzer

Inline measurement of pulp drainage directly from the process line and output in freeness.

The SPF-5500 Freeness In-line analyzer measures the drainage rate of pulp suspensions and provides fast and accurate freeness results.

It is installed directly on the process pipe and an integrated robust sampling device extracts representative pulp samples under actual process conditions providing real time results. The special design of the SPF-5500 sample piston allows easy installation independent of the process pipe angle.


Due to its robust design and unique measuring principle, the SPF-5500 measures with high frequency, high accuracy and repeatability. It provides a freeness output signal which is independent of the process.

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Leading-edge product application solutions deliver best-in-class solution for manufacturing

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Proven cross-mill benefits

An integrated whole-of-mill approach that unlock new levels of process optimization

Trusted at every level

Measurable performance gains that support operational, maintenance and project professionals

Value added services

  • BTG’s Mütek lab devices create cost savings through optimized chemical dosage and reliable, stable operation
  • A new, fast and accurate method to optimize polymer dosage for dewatering processes in ‘ effluent treatment
  • BTG’s Mütek PCD opens up new options for measurement of grain products, raw materials, additives and finished products

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