Over 10,000+ customers' choice, Focus on screening industry 40+ years
During milling, packaging, or further food processing, flour may pick up impurities such as bran residues, dust, lumps, or foreign particles, affecting final product quality. Flour particles typically range from 80 to 200 mesh. These fine particles can generate static electricity and adhere to traditional vibrating screens, causing frequent blockages and production interruptions. An effective flour screening solution should offer:
1. The ability to handle fine powders without clogging
2. Stable screening accuracy with minimal material waste
3. Dust control during operation to meet food hygiene standards
4. Reliable continuous operation with easy maintenance
In these aspects, the horizontal airflow sieve offers advantages over traditional vibrating screens. It uses high‑speed air to convey material onto a cylindrical screen. Under centrifugal and propelling forces, fine particles pass through the screen quickly, while oversize material moves along the screen wall to the reject outlet. The continuous airflow helps prevent screen blinding – a common issue with fine flour – and reduces the frequency of manual cleaning.
When screening food materials like flour, the machine's construction material directly impacts food safety. A key selection criterion is the material used for all product‑contact parts.
A common, compliant choice is SUS304 stainless steel. It offers good corrosion resistance and is easy to clean, making it widely accepted in food processing equipment. Many airflow sieve manufacturers offer a 304 stainless steel configuration to support food industry hygiene standards. For higher sanitation requirements, 316L stainless steel is also available.
In addition, the machine's sealing design matters. A fully enclosed structure helps minimize flour dust emission, improving workshop air quality and operator working conditions, while also reducing product loss – aligning with modern food processors’ goals for cleaner, greener production.
When evaluating a horizontal airflow sieve for flour, refer to technical specifications and, ideally, test results with your own material.
Based on available industry data, horizontal airflow sieves typically handle mesh sizes from 80 to 500 mesh, covering flour, starch, rice flour, and similar powders. For a 30‑mesh flour screening, some models can achieve throughputs of 3,000‑5,000 kg/h. These figures provide a starting point, but actual performance depends on factors like flour moisture, impurity content, and required accuracy. For best results, request a material test before purchase.
A notable benefit of the horizontal airflow sieve is that the screen is not compressed by material weight, often leading to longer screen life and lower energy consumption compared to traditional vibrating screens – helping reduce long‑term operating costs.
Beyond basic parameters, pay attention to engineering details that influence reliability:
Screen assembly accuracy – The screen is mounted on a cylindrical cage. The precision of concentricity and machining directly affects screen life. Well‑controlled manufacturing results in less frequent screen changes.
Clearance between rotor and screen – Proper spacing ensures uniform air distribution, promoting efficient separation and material flow.
Self‑cleaning feature – Quality horizontal airflow sieves include an air‑swept cleaning mechanism that continuously blows the screen surface, reducing blinding from static or sticky particles.
Ease of screen change & cleaning – For plants that switch between different flour types, quick disassembly and easy access for cleaning help prevent cross‑contamination and reduce downtime. The airflow sieve design generally supports such needs.
Customer Testimonials
Sinochem Group, China Aerospace Science and Technology Corporation, China National Building Material Group, CNOOC, COFCO, Shuanghui, Yihai Kerry, Yuntianhua, China Nonferrous Metal Mining Group, China State Shipbuilding Corporation, Honjo Chemical, Shandong Yanggu Huatai Chemical, Haohua Technology, Huazhong Pharmaceutical, Union Pharmaceutical, CSPC Pharmaceutical Group, Sanjiu Pharmaceutical, North China Pharmaceutical, Jiudian Pharmaceutical, Limin Co., Ltd., Shaanxi Coal and Chemical Industry Group, Donghai Petrochemical, Feitian Petrochemical, Yanshan Petrochemical, Satellite Chemical, China Pingmei Shenma Group
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. traces its origins back to the 1980s. After more than 40 years of development, the company has become a "National Specialized, Refined, Distinctive and Innovative 'Little Giant' Enterprise", a ""National Green Factory"", a "National High-Tech Enterprise", a "National Intellectual Property Advantage Enterprise", as well as the "President Unit of the Vibrating Screen Association". It has also been designated as the "Henan Provincial Industrial Design Center", the "Henan Provincial Intelligent Online Screening System Engineering Technology Research Center"", and the ""Xinxiang Municipal Fine Screening Engineering Technology Research Center". The company has successfully applied for over 500 patents, including invention patents, utility model patents, and design patents, and has received the "Science and Technology Achievement Award issued by the Ministry of Industry and Information Technology". Gaofu has participated in the drafting and formulation of 4 "National Standards".
Gaofu's product portfolio covers multiple series and hundreds of varieties, including vibrating screening equipment, conveying equipment, coal crushing equipment, filtration equipment, and automated material handling systems. Its main products include blade filters, automatic slag-discharging filters, plate-type enclosed filters, bleaching earth filters, diatomaceous earth filters, bag filters, candle filters, titanium rod filters, and filtration systems. These products are widely used in industries such as food, pharmaceuticals, chemicals, and environmental protection, earning the trust and acclaim of over 10,000 customers worldwide.
Gaofu products are not only best-selling across Greater China but also exported to over 100 countries and regions, including Russia, Canada, the United States, New Zealand, Japan, Brazil, and South Africa. The company practices its mission of "Enhancing material quality and efficiency to meet customer needs", accompanying customers along the way toward harmonious and mutually beneficial partnerships. Gaofu has become a cooperative supplier to numerous Fortune Global 500 companies, including CNPC, Sinopec, Sinochem Group, China Resources Group, Sinopharm Group, COFCO Group, China National Building Material Group, China Aerospace Science and Technology Corporation, and Jinchuan Group."
