HMK-22 Fisher Sub Sieve Sizer/Average Particle Size Analyzer (FSSS) is an optimal tool for subsieve particle size analysis and has become the best successor of discontinued Fisher Scientific Sub-Sieve Sizer (FSSS) Fisher Model 95 (Model 14-311A and older Model 14-311 Sub-Sieve Sizer). It uses Air Permeability Principle to fast and accurately measure the Average Particle Size i.e. Fisher Number FSSS of powders. HMK-22 Fisher Sub-Sieve Sizer completely meets international standards about fisher sub sieve sizers ASTM B 330 Standard Test Method for Fisher Number (FSSS) of Metal Powders and Related Compounds and ISO 10070 Metallic powders Determination of envelope-specific surface area from the measurements of the permeability to air of a powder bed under steady-state flow conditions. HMK-22 Fisher Sub-Sieve Sizer meets the urgent requirement of the industry to find a quality successor to particle sizing technique by air permeability device such as fisher model 95. It gives operators completely same test experience and the results agrees completely with all the tested data obtained by a Fisher Scientific Sub-Sieve Sizer Model 95.
Note: HMKTest has changed the outter look of HMK-22 Fisher Sub-Sieve Sizer. User will not find green HMK-22 in the market anymore. In addtiion to the color upgrade we upgrade the quality of HMK-22 Fisher Sub-Sieve Sizer to an even higher level as well.
hmk-22--fisher-sub-sieve-sizer-price-china-manufacturers (P/N 020198)
HMK-22 Fisher Sub Sieve Sizer is a necessary and satisfying particle size testing method in applications of productions and research fields such as magnetic materials, pharmaceuticals, powder metallurgy, refractory metal, special ceramics, tungsten materials, hard metals, nonferrous metals, nonmetals, chemical industries, building materials, national defense function materials, and many powders etc and has become the most reliable and cost-effective fisher sub sieve sizer for sale. AimSizer is also the major supplier of standardized fisher sub sieve sizer parts and accessories.


fisher-sub-sieve-sizers-images-and-pictures/hmk22-sample-pressure-calibrator.jpg fisher-sub-sieve-sizers-images-and-pictures/fisher-sub-sieve-sizer-model-95-price-china-manufacturer.jpg fisher-sub-sieve-sizers-images-and-pictures/fisher-sub-sieve-sizer-back-side.gif fisher-sub-sieve-sizers-images-and-pictures/fisher-sub-sieve-sizer-spare-parts.JPG fisher-sub-sieve-sizers-images-and-pictures/hmk-22-fisher-sub-sieve-sizer-20150413.jpg fisher-sub-sieve-sizers-images-and-pictures/hmk-22-fisher-sub-sieve-sizer-june-8-2015.jpg fisher-sub-sieve-sizers-images-and-pictures/hmk-22-fisher-sub-sieve-sizer-with-single-calculator-chart-sep-29-2016.jpgfisher scientific sub sieve sizer model 95


  • Voltage Requirement: 220V/115V (+ or -10%), 50-60 Hz
  • Power Requirement: 0.3 amps (30 Watts)
  • Range
  • - Average Particle Diameter: 0.2 to 50 microns (um)
  • - Porosity: 0.25-0.40/0.40-0.80/0.80-0.95
  • Repeatability:<3%
  • Accuracy: <3%
  • Test Method: Air permeability method for determining surface area
  • Shipping Weight: 18 kg (38 lb.)
  • Instrument Dimensions: 41.8cm W x 24.6cm D x 73.7cm H
  • How to Use an HMK-22 Fisher Sub Sieve Sizer Sample Pressure Calibrator?
  • - Accurate and cost-effective successor of Fisher Scientific Sub Sieve Sizer Model 95
  • - Stable performance
  • - User-friendly operation, same as Fisher Model 95 manual
  • - Good repeatability
  • - Fisher pump made of wear-resistant metal
  • - Working in stable pressure without any noise
  • - Long working time
  • - Specific surface area is also an output
  • - Extended porosity range from 0.25 upto 0.95
  • - Genuine manufacturer shipping as quick as 1 day
  • Hard metal, magnetic industry companies, medicines, new material companies, electronic companies, permanent magnetic companies, gypsum construction companies, metalwork companies, magnetic plastics companies, magnetic materials companies, chemical industry companies...

Demo Video

Fisher Sub Sieve Sizer

HMK-22 Particle Size Measurement Procedures(part)

-Take the filled sample tube upright away from the sample tube stand
-Put it on the base block assembly
-Turn the sample pressure calibrator until it reach 14
-When the sample pressure calibrator is fixed,move the calculator chart
-There is a sample height curve
-Point the red needle to the sample height curve
-Then got the porosity of this sample 0.xx such as 0.72
-Remove sample tube and put it onto test base
-Press tightly and the water level rise
-When the level becomes stable the level value is the particle size (fisher number FSSS) of this powder sample.
-If the powder is coarser and the water level goes too high we can use range control II
-When turn to II, the water level comes down
-Read the value
-Mutiply by 2 and get fisher sub sieve sizer particle size of this powder.

For example, if 6.8,then 6.8 x 2 = 13.6, and the fisher number particle size is 12.8 micrometer

View More Videos at http://www.isizer.com/category/online-manuals/hmk-22-video-manual/

HMK-22 Fisher Sub Sieve Sizer FAQs

How to Validate an HMK-22 Fisher Sub Sieve Sizer?
What is Catalog No. of a Fisher Model 95 Sub-Sieve Sizer
Merits and limitations of fisher method
What purpose a Fisher Model 95 Sub-Sizer is designed for?
What is a Fisher Sub Sieve Sizer?
Fisher Sub Sieve Sizer Principle and Results Calculation
How long it usually takes for the liquid level in the manometer tube of a fisher sub sieve analyzer reaches a maximum?
What is Fisher Sub-Sieve Sizer Sample Weight?
What are advantages of a fisher sub sieve sizer over other particle size analyzers?
What is the measurement difference between products of a fisher sub sieve sizer(FSSS) and a laser particle size analyzer(LPSA)?
What is porosity (percentage of void) of powder bed?
What are popular methods of particle sizing in the powder metallurgy industry?
ISO 10070 Metallic powders Determination of envelope-specific surface area from the measurements of the permeability to air of a powder bed under steady-state flow conditions
ASTM B 330
Manufacturer and Buyers
  • -HMKTest is a world leading manufacturer of quality Fisher Sub Sieve Sizers. We supply ISO and ASTM certified fisher sub sieve sizers and Fisher Scientific Sub-sieve Sizer Model 95 replacement parts.
  • -HMK-22 Fisher Sub-Sieve Sizer meets both ASTM and ISO International Standards of fisher sub size sizer/average particle size analyzer.
  • -HMK-22 Fisher Sub Sieve Sizer was sold to hundreds of satisfied world users buy each year. HMK-22 fisher sub sieve sizer is only manufactured by HMKTest.

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