Freeness Tester

The freeness tester measures the drainage rate of pulp suspension on a standard screen, reflecting the dispersion and drainage properties of fibers. It is used in the papermaking process to control pulp quality, adjust beating degree and additive dosage, ensuring that paper uniformity and strength meet production requirements.
Selection
When selecting, consider the measurement range covering common slurry types, ease of operation to reduce human error, and corrosion-resistant construction to suit workshop environments. Verify that the standard sieve specifications match production needs, pay attention to the completeness of calibration tools and maintenance costs, and ensure stable and reliable data.

Terms

Standards

Instruments

Measurement range 0-100 ° SR, equipped with a special measuringflask to directly display the Freeness/Schopper-Riegler value, without conversion, the test water temperature is controlled at 20 +/- 0.5 ° C to ensure accurate and reliable detection results.

$ 1004.00

Made of 304 stainless steel, Measurement range 0-1000CSF, equipped with 0.50mm diaMeter screen mesh, self-calibrating, long service life.

$ 3590.00

Measurement range 0~ 100 ° SR, cone rising speed 100 +/- 10mm/s, suitable for all kinds of Pulp suspensions, can use raw materials economically and end the Refining process in time, simple and reliable operation.

$ 1106.00

It can measure the range of 0-1000CSF, with an accuracy of 10CSF, using 304 stainless steel material and silicone sealing ring structure, with self-Adjustment, suitable for various Pulp water filtration change detection.

$ 4325.00

Manual compression sealing vertebral body design, three-legged leveling mechanism to ensure sealing, Measurement range 0~ 100 ° SR, cone rising speed 100 +/- 10mm/s, overflow port discharge time 149 +/- 1s.

$ 1134.00

Measurement range 0~ 100 ° SR, overflow discharge time 149 +/- 1s, using national standard design, can accurately detect Pulp suspension filtration rate.

$ 1171.00

Using spring pressing cylinder cover, fast operation. All 304 stainless steel structure, filter precision manufacturing, high durability. Measurement range 0~ 1000CSF, in line with a number of international and domestic standards.

$ 4705.00

The instrument is made of all stainless steel, and the filter screen is precisely machined according to the TAPPI T227 standard. The measurement range is 0~ 1000CSF, which can accurately reflect the surface condition and swelling of the fiber, and has a long service life.

$ 4075.00

Measurement range 0~ 100 ° SR, overflow discharge time 149 +/- 1 seconds, cone rising speed 100 +/- 10mm/s, used to detect Pulp suspension filtration rate, in line with ISO 5267-1 international standards.

$ 1340.00

Vertical design, motor and drying system separation, small vibration, low noise, high dehydrating efficiency, Rotation speed of 2800 rpm, dehydrating weight 0-500g, accurate timing, easy to use.

$ 654.00

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