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  6. Airflow impact crushing and classification device "Polvojean" (PG)

Airflow impact crushing and classification device "Polvojean" (PG)

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last updated:Nov 13, 2025

奈良機械製作所
奈良機械製作所
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It is a grinding machine with grading functionality. It suppresses the rise in temperature during grinding, making it suitable for food and other applications. It excels in disassembly and cleaning, and complies with GMP standards.

This is a new type of crusher equipped with a simple classification mechanism. By incorporating our expertise in crushing, we have thoroughly enhanced the crushing efficiency, enabling excellent temperature control and significantly improving the processing capacity per hour. When combined with the classification mechanism, it accommodates a wide range of particle size adjustments, covering from the ultrafine grinding area of jet mills to several hundred microns.

    Crusher
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Airflow impact crushing and classification device "Polvojean" (PG)

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  • Related Link - https://www.nara-m.co.jp/media/products/a29

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【Features】 - By combining a high-efficiency grinding section with a separately powered classification section, it is possible to achieve a wide range of airflow adjustment (compared to our Cosmo-Mizer). - It allows for a wide range of particle size adjustments from the micron range using a jet mill to several hundred microns, while minimizing temperature rise during processing. - From small machines compliant with GMP specifications to large machines, the structure is designed for easy disassembly, cleaning, and maintenance of the internal contact parts, making it user-friendly on-site. 【Application Examples】 A: Raw material for processing: Soybeans - Rotor speed: 11,250 min-1 - Classifier speed: 6,000 min-1 - Suction airflow: 4.6 m3/min - Average particle diameter: 13.0 μm, D90: 42.3 μm B: Raw material for processing: Rice - Rotor speed: 10,000 min-1 - Classifier speed: 4,500 min-1 - Suction airflow: 5.0 m3/min - Average particle diameter: 30.6 μm, D90: 81.5 μm

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奈良機械製作所

奈良機械製作所

Industrial Machinery

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The words that are often spoken within our company are "grasp change and create change," and "contribute to the irreplaceable Earth, which is home to humanity and many species, with our unique technology." We also pass down the aspiration to become a company welcomed worldwide. To realize this, each individual at NARA must broaden their perspectives and hearts, actively participate in their own transformation, and at the same time, maintain a firm commitment to uphold their originality in the face of valuable challenges. Although we are still inexperienced, we intend to take steps toward NARA's ideals, with the broad support and guidance of everyone, and sometimes even receiving admonishments, as we move forward.

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