Mikro Air Jet Sieve™ MAJSx

The Mikro Air Jet Sieve™ MAJSx is a highly accurate and reliable particle size analyzer designed for identifying the particle size distribution of dry powder ranging from 20 µm / # 635 (mesh) to 4,750 µm / # 4 (mesh).

  • Suitable fields of use are Chemicals, Minerals, Pharmaceuticals, Food, Plastics, Cosmetic
  • Aerodynamic sieving, dispersion of the sample while continuously cleaning test sieve
  • Particle size identification of dry powders between the effective range of 20 µm to 4,750 µm
  • Simple analysis data saving to the on-board computer.
  • Economical, highly accurate and reliable particle size analysis methods
  • Sample Volume 10 to 100 grams/cycle analysis
  • Output graphs in linear or Rosin-Rammler Law formats
  • Capable of calculating particle size points at 0.01 to 99.99% using the Rosin-Rammler Law
  • Available in a ‘Advanced Computer Software Guided Mode’ or ‘Basic Manual Mode’

Prices starting from $7,000

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Educational webinar
June 14

Dangers of Inaccurate Particle Size Analysis

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Attributes Of The Mikro Air Jet SieveTM Majsx

Operation:
The Mikro Air Jet Sieve™ MAJSx utilizes test sieve screens and the pneumatic sieving principle to enhance the accuracy and reproducibility of particle size analysis. Use of this method has become a preferred standard for such tasks as quality assurance of incoming raw materials, process control and the verification of final product specifications. While under negative pressure, a positive upward air flow is emitted from the rotating slit wand, continuously disperse particles across the surface of a test sieve screen. The particles finer then the opening of the test sieve screen will pass through and are carried away from the sample, leaving the coarse particles larger than the sieve opening retained on the Test sieve screen. Precise determination of particle size within the range of 20 to 4,750 µm can quickly be determined. This unique rotating wand method also reduces, and in many cases, eliminates the need for tapping or brushing, enhancing the analysis reproducibility. The overall system is designed for cleaner operation and requires less counter space than other types of analytical equipment.

Operating Parameters
When using air jet sieving to determine particle size, there are four key operating parameters that need to be consistent to produce repeatable and reliable results.

  • Sieving Time – The sieving time plays a big role in determining particle size with an air jet sieve. Excessive sieving time can lead to particle degradation due to attrition. In most dry powder applications, Hosokawa recommends a sieving time cycle of 2 minutes. Two minutes provides ample time for the particles of the entire sample to have an opportunity to pass through the sieve screen or be retained.
  • Sieving Vacuum Pressure – Hosokawa recommends a sieving pressure between 8-16 inches of water column during a sieve analysis. If the pressure is too low, the air velocity passing through the rotating wand may not evenly disperse the entire sample. If the pressure is too high, the air velocity could generate enough force to further grind material as the sample repeatedly impacts the sieve screen and sieve cover.
  • Sample Volume – In most air jet sieve particle size analysis devices, a sample between 10 grams to 100 grams is recommended, depending on the density of the material being tested. Samples larger than 100 grams can blind the test sieve screen affecting the analysis results.
  • Test Sieve Screen Quality – The integrity of a test sieve screen is critical in any particle size analysis process. Hosokawa only provides test sieve screens that are 99% accurate. These high quality test sieve screens help assure accurate results. Test Sieve screens with any damage such as holes, tears, scratches, waves or other imperfections are not recommended. Sieve screens should be recertified as recommend by the manufacture on a routine basis.

Design:
This particle size analyzer features an integrated computer with touch screen controls and display. The computer system is easy to operate and includes step by step instructions to ensure test performance. The Mikro Air Jet Sieve™ MAJSx automatically calculates particle size and data can be stored, analyzed and compared. The Mikro Air Jet Sieve™ MAJSx is ergonomically designed to make particle analysis more efficient than ever. Constructed in durable cast aluminum, the Mikro Air Jet Sieve™ MAJSx frame is lightweight and has a high polish finish, yet is tough enough to withstand frequent use in harsh environments.

  • Suitable for use with 200 or 203 mm diameter test sieve screens
  • Integrated analysis computer with touch screen controls
  • User friendly software with step by step instructions
  • Built in timer and automatic pressure differential gauge
  • Capable of accepting 90-240 volt, single phase, 50/60 Hz power
  • Compact Design 16.5" wide x 10.5" deep x 7.5" tall
  • Long life & minimal downtime
  • Independent isolated inlet air & outlet air connections
  • Available in a ‘Advanced Computer Software Guided Mode’ or ‘Basic Manual Mode’
  • Certification and/or Validation services available upon request
  • Brush, sieve cover and tapping hammer included
Options & Accessories:

BALANCES: Accurate sieve screen weighing is critical in determining particle size. Hosokawa can provide reliable and proven balances with your particle size analyzer that can be integrated into the process and directly network with The Mikro Air Jet Sieve™ MAJSx.

  • Compatible electronic balance for accurate particle size analysis

VACUUMS: Hosokawa Micron Powder Systems strongly encourages customers to purchase and utilize industrial HEPA filtered vacuums also available through Hosokawa. The vacuums offered are specifically selected to ensure performance and assured results.

  • HEPA vacuums for high containment & consistent performance

CYCLONE: The Hosokawa Mikro High Efficiency Cyclone is a laboratory scale particle collection device, often paired with the Mikro Air Jet Sieve™ MAJSx. In order to recover up to 98% of materials over 10 µm, the Mikro High Efficiency Cyclone must be installed prior to the vacuum. This option allows operators to collect materials that are smaller than the test sieve screen for further analysis. The cyclone is constructed in stainless steel and supplied with a threaded clear glass collection jar. The cyclone can be easily dismantled for inspection and/or cleaning.

  • High efficiency cyclone for 98% product recovery of particles above 10 µm
Sieve Screen Options:

Hosokawa Micron Powder Systems only offers precision die stamped test sieve screen frames with the Mikro Air Jet Sieve™ MAJSx particle size analyzer. The Test Sieve screens meet ASTM E11 standards and are supplied with a certificate of conformance, along with a certified histogram. The test sieve screens are built to the highest standards and are guaranteed to be at least 99% accurate. Hosokawa has a wide selection of mesh sizes ranging from #635 / 20 µm up to #4 / 4,750 µm.
An Optional Multi-screen adaptor capable of using 3 different sized test sieves at one time is available.

  • Micron (µm)
    ISO 3310
    ASTM Mesh
    20
    20
    635
    25/27
    25
    500
    32
    32
    450
    38
    38
    400
    45
    45
    325
    N/A
    50
    N/A
    53
    53
    270
    63
    63
    230
    75
    75
    200
    N/A
    80
    N/A
    90
    90
    170
    N/A
    100
    N/A
  • Micron (µm)
    ISO 3310
    ASTM Mesh
    106
    106
    140
    125
    125
    120
    150
    150
    100
    N/A
    160
    N/A
    180
    180
    80
    N/A
    200
    N/A
    200
    N/A
    N/A
    212
    212
    70
    250
    250
    60
    300
    300
    50
    355
    355
    45
    425
    425
    40
  • Micron (µm)
    ISO 3310
    ASTM Mesh
    500
    500
    35
    600
    600
    30
    710
    710
    25
    850
    850
    20
    1000
    1000
    18
    1180
    1180
    16
    1400
    1400
    14
    1700
    1700
    12
    2000
    2000
    10
    2360
    2360
    8
    3350
    2800
    6
    4750
    4000
    4

COST OF THE MIKRO AIR JET SIEVE MAJSx PARTICLE SIZE ANALYZER

Hosokawa Air Jet Sieves start around $4,399 for certified pre-owned analyzers, up to $15,855 for the most advanced systems with required ancillaries and optional cyclone. Prices for air jet sieves differ depending on the number sieve screens required, vacuum selected, balance type, optional components, taxes and shipping costs.

  • Mikro Air Jet Sieve MAJSx Particle Size Analyzer (Basic Mode) - $7,000.00 to $9,555.50
  • Mikro Air Jet Sieve MAJSx Particle Size Analyzer (Advanced Mode) - $10,024.50 to $12,278.50
  • Pre-Owned Air Jet Sieve Particle Size Analyzers – from $4,399.00

Hosokawa’s Mikro Air Jet Sieve™ MAJSx Particle Size Analyzers are more economical than laser diffraction analyzer and more accurate than oscillating or shacking sieving devices. Additionally, the Mikro Air Jet Sieve™ is easy to operate and maintain. Anyone can be trained to perform an analysis with the MAJSx Particle Size Analyzer in a few hours.

Disclaimer: Prices listed are subject to change without warning and does not include taxes,
shipping or import fees or the cost of any accessories or ancillary equipment not included in the quotation.

Demonstrations & Education

The MAJSx in 260 Seconds
Setup the MAJSx
How to operate your MAJSx
Dry & Wet Sieving Webinar
How to operate the Mikro Air Jet Sieve MAJSx-Basic Model
How to setup the Mikro Air Jet SIeve MAJSx-Basic

APPLICATIONS & USES

The Mikro Air Jet Sieve™ MAJSx is a highly versatile particle size analyzer used by hundreds of laboratories around the world testing thousands of materials. Most customers use the air jet sieve to determine the particle size of dry powder ranging from as fine as 20 µm / #635 (mesh) up to 4,750 µm / #4 (mesh). Some customer use the Mikro Air Jet Sieve™ for determining the average particle size below a specified cut point; for example, D90 < 50 µm. Other customers use the air jet sieve to confirm a powder top size does not exceed product specifications. The air jet sieve can even be used as a small lab scale classifier to cut the fine portion out of a sample or used as a dedusting system to remove undesirable fine dust from small batches of product.

Particle Size Analyzer Systems

Basic Mode:

In the basic mode, the Mikro Air Jet Sieve™ MAJSx allows operators to utilize the basic functions of the particle size analyzer to screen materials and manually determine the amount of material retained and passed. This version is most suitable for applications where operators only need to quickly evaluate the particle size at a specific micron size.

  • Manually Operated MAJSx
  • Test Sieve Screens
  • Vacuum

Advance Mode:

The advanced mode utilized the built in touch screen computer to collect and calculate particle sizes from a number of test sieve screens, generating a distribution. Additionally the operator can connect the air jet sieve to a compatible balance and a Network for printing. This version is the most versatile and, as a result of the menu guided software, the easiest operate.

  • Computer Assisted MAJSx
  • Test Sieve Screens
  • Balance
  • Vacuum

Gallery

The Mikro Air Jet Sieve™ MAJSx
Particle size analysis from 20 µm to 4,750 µm
Touch screen operation
Back of Mikro Air Jet Sieve™ MAJSx
MAJSx with Cyclone
Pneumatic Sieving Principle
Air Jet Sieve System
Test Sieve Screen Options
On screen instructions & analysis
Track & save results

Contact Us

For more information on The Mikro Air Jet Sieve™ Model MAJSx, please complete the following form, or call (866) 584-0950

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