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| Model |
|
40 / 63 |
50 / 80 |
63 / 100 |
80 / 160 |
125 / 125 |
| Drive Standard |
HP |
50 |
75 |
100 |
200 |
250 |
| Throughput |
Lbs/Hr |
1,100 |
2,200 |
3,300 |
6,500 |
11,000 |
| Rotor Speed |
RPM |
660 |
550 |
525 |
350 |
250 |
| Rotor Knives |
Number |
4 |
5 |
6 |
8 |
12 |
| Bed Knives |
Number |
3 |
4 |
5 |
6 |
9 |
| Weight |
Lbs |
5,600 |
6,800 |
14,000 |
24,800 |
28,000 |
[post_title] => Alpine RO Rotoplex Granulator
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[post_title] => Micron Pulvis Agitating Media Mill
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[post_name] => micron-pulvis-air-classifying-mill
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[post_title] => Micron Xerbis Agitated Media Flash Dryer
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[post_name] => micron-xerbis-agitated-media-flash-dryer
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[post_title] => Alpine Pharmapaktor APC L
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[post_modified] => 2021-05-19 17:09:13
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[post_title] => Alpine Picoline
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[post_name] => alpine-picoline
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[post_modified] => 2026-08-13 14:35:57
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Target Applications: While 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 utilize the particle size analyzer to determine the average particle size below a specified cut point; such as D90 < 50 µm. Others use the air jet sieve to confirm that a powder top size does not exceed product specifications. The Mikro Air Jet Sieve® MAJSx can even be used as a small lab-scale classifier to remove the fine particles out of a sample or as a dedusting system to remove undesirable dust from small batches.
How it Works: 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. This method has become the preferred standard for such tasks as quality assurance of incoming raw materials, process control, and verification of final product specifications. While under negative pressure, a positive upward air flow is emitted from the rotating slit wand which continuously disperses particles across the surface of a test sieve screen. Those particles that are smaller then the opening of the test sieve screen pass through and are carried away from the sample, leaving the particles larger than the sieve opening on top of the test sieve screen. Particle size within the range of 20 to 4,750 µm can quickly be determined. The unique rotating slit wand feature also reduces, and in many cases, eliminates the need for tapping or brushing, thus enhancing the analysis reproducibility. The overall
system is designed for cleaner operation and requires less counter space than other types of analytical equipment.
Key Operating Parameters Enhance Repeatability & Reliability: The sieving time plays a major 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 two-minute sieving time cycle which provides ample time for the particles of the entire sample to pass through the sieve screen or be retained.
Sieving vacuum pressure between 8-16 inches of water column is recommended during a sieve analysis. If the pressure is too low, the air velocity passing through the rotating wand may not be sufficient to 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.
A sample volume between 10 and 100 grams is recommended in most air jet sieve particle analyzers, depending on the density of the material being tested. Samples larger than 100 grams have the potential to blind
the test sieve screen and affect the analysis results.
Test sieve screen quality and integrity is critical in any particle size analysis process. Hosokawa provides test sieve screens that are 99% accurate. Test sieve screens with damage such as holes, tears, scratches, waves, or other imperfections are not recommended. Sieve screens should be routinely re-certified to insure accurate analysis results.
Performance at an Economical Cost: Certified pre-owned Hosokawa Air Jet Sieves analyzers start at $4,400. Prices can vary dependent on the number of sieve screens required, vacuum selection, balance type, optional components, taxes, and shipping.
- Pre-Owned Air Jet Sieve Particle Size Analyzers – from $4,400
Price Disclaimer: Prices listed are subject to change without warning and do not include taxes, shipping, or import fees or the cost of any accessories or ancillary equipment not included in the quotation.
American Made: A long-time industry leader, Hosokawa developed air jet sieving technology in the early 1960's and has refined and elevated its technology to meet the latest market needs. The Mikro Air Jet Sieve® MAJSx is manufactured in the U.S. and comes with our pledge for performance and dependability. These innovative products have earned a reputation for accuracy and reliability as evidenced by the thousands of installations worldwide.Â
[post_title] => Mikro Air Jet Sieve® MAJSx Pre-owned
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[post_modified] => 2020-10-26 12:05:01
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| Model |
|
1010 |
| Throat Size at Chamber |
Inches |
10 x 10 |
| Screen Area |
Sq. Inches |
240 |
| Motor |
HP |
7.5 – 10 |
| Cutting Circle Diameter |
Inches |
10 |
| Rotor Knives |
Number |
3 |
| Bed Knives |
Number |
2 |
| Weight – SPL / SIL |
Lbs |
675 |
| Throughput |
Lbs/Hr |
300 |
[post_title] => Polymer Systems Hot Melt Granulator
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[post_name] => polymer-systems-hot-melt-granulator
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[post_modified] => 2026-06-01 10:36:48
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Benefits
- Continuous drying, milling and classifying in a single compact system
- Safe drying of temperature-sensitive products — even at elevated temperatures
- Produces ultra-fine, uniform powders in just seconds
- Handles moist solids with up to 80% moisture content — including slurries, pastes, doughs, filter cakes and wet powders
- High evaporation capacity and fast thermal transfer
- 30–40% lower energy consumption per kg of evaporated water compared to conventional drying technologies
- Small footprint and excellent accessibility for inspection and cleaning
Rotor Types
Hosokawa Flash Dryers are available with a choice of three rotor types, selected according to product characteristics and specific process goals. Each rotor offers distinct advantages to suit a wide range of applications:
- DMR Rotor
A high-speed multi-blade rotor designed for strong dispersion, generating a powerful air vortex with tip speeds of up to 110 m/s. Ideal for maximum dispersing performance.
- MDH Rotor
A horizontally driven rotor with swinging hammers for intensive grinding. Recommended for processing slurries and pastes requiring strong milling.
- MDV Rotor
A vertically driven grinding rotor that gently disperses wet agglomerates and solids. Suited for mild dispersion and grinding of heat-sensitive products.
[post_title] => Micron Drymeister Flash Dryer
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[post_name] => micron-drymeister-flash-dryer
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[post_modified] => 2026-06-04 13:18:18
[post_modified_gmt] => 2026-06-04 17:18:18
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