Over 10,000+ customers' choice, Focus on screening industry 40+ years
The integrated design of flour feeding and screening stems from a deep understanding of the practical needs of food production:
Screening is a necessary step to ensure flour purity. During harvesting, storage, and transport, flour inevitably picks up impurities such as dust, lumps, insect fragments, and foreign matter. These impurities not only affect the formation of the gluten network – leading to rough texture and uneven structure – but may also pose food safety risks. Whether for bread, noodles, or pastries, flour purity is the foundation of finished product quality.
The traditional "screen‑then‑feed" approach carries secondary contamination risks. In the screen‑then‑feed model, screened flour must be transferred from the screening equipment to the feeding system – during this intermediate step, material is exposed to the workshop environment, increasing the possibility of foreign matter contamination.
The traditional "feed‑then‑screen" approach affects production continuity. In the feed‑then‑screen model, the screening equipment acts as the "last checkpoint" of the production line – if the screen becomes blocked or fails, the entire production line must stop and wait.
The integrated design achieves "screening while feeding." Gaofu's food‑grade flour feeding system integrates the screening module at the front of the feeding piping – before flour enters the conveying pipe, it passes through high‑efficiency screening. Lumps are effectively broken, and foreign matter is reliably intercepted. Screening and conveying are completed simultaneously – ensuring raw material purity without affecting feeding continuity.
Gaofu's food‑grade flour feeding system integrated feeding unit consists of the following core components:
Food‑grade stainless steel construction – the foundation of hygienic safety.
All parts that come into direct contact with flour are made of 304 or 316L food‑grade stainless steel. Internal surfaces are polished – smooth, non‑stick, and easy to clean. Welded joints are polished with no dead corners, complying with food industry clean production standards. The system design fully considers the hygiene requirements of food producers, providing equipment‑level assurance for food safety.
Online screening module – the "security checkpoint" during conveying.
The system integrates Gaofu Machinery's self‑developed vibrating screening module. Before flour enters the conveying pipe, it passes through high‑efficiency screening. Using advanced airflow screening technology, impurity separation is completed simultaneously with material conveying, effectively removing various foreign matter and lumps from raw materials. Screening accuracy can be flexibly adjusted according to flour fineness requirements.
Fully enclosed pneumatic conveying – the "clean passage" after screening.
Screened fine flour is conveyed through enclosed piping to mixers or storage tanks. The entire conveying process takes place in an enclosed environment, effectively preventing material contact with the outside. The internal surfaces of conveying pipes are mirror‑polished, with no dead corners and minimal material residue. The piping can achieve "zero" material residue.
Intelligent control system – full‑process visual management and control.
The system is equipped with a PLC automation control system. Operators can monitor key information in real time – screening status, feed rate, metering data – through the touchscreen interface. Abnormal conditions trigger automatic alarms, ensuring that the production process is traceable and controllable.
Ensures raw material purity at the source. The integrated design makes screening the "first stop" rather than the "last stop" of the feeding process. Flour is purified before entering production – lumps are effectively broken, and foreign matter is reliably intercepted. After application by one food company, flour impurity removal rate reached 99.8%.
Eliminates secondary contamination risks. Screening and feeding are completed in the same enclosed system – material does not need to be transferred between separate equipment. There is no manual intervention throughout, eliminating foreign matter intrusion risks. From the moment raw materials enter the plant, they are processed in an enclosed flow.
Ensures feeding continuity. The screening module is integrated at the front of the feeding piping – it does not interrupt continuous feeding. Even when screen replacement is needed, the quick‑release design makes the operation convenient.
Meets food industry compliance requirements. The system uses food‑grade stainless steel with no dead corners. The fully enclosed design complies with the requirements of the General Hygiene Standard for Food Production (GB 14881‑2013). All parts that contact materials are made of 304 or 316L stainless steel.
Practical Application Results
In actual food processing industry applications, Gaofu's food‑grade flour feeding system integrated feeding unit has been validated:
Improved raw material purity. The online screening module effectively removes lumps, foreign matter, and impurities from flour. Flour impurity removal rate reaches 99.8%. Screened fine flour is then conveyed through enclosed piping to mixers or storage tanks.
Improved production efficiency. Automated feeding is 3‑5 times faster than manual operation. Single‑line capacity can be increased by over 30%. The system can connect multiple mixers on a single pipeline.
Reduced overall costs. After adopting Gaofu's flour dust‑free feeding system, one medium‑sized bakery saw annual raw material loss rates drop significantly, with total annual cost savings of RMB 3.6 million. One baked snack manufacturer reduced raw material loss from 8% to below 3%, with annual cost savings exceeding RMB 1 million.
Flour screening and feeding may appear to be two separate processes, but they are two sides of the same coin in ensuring raw material purity. Separating them not only increases equipment investment and floor space but also increases contamination risks during material transfer. Gaofu Machinery's food‑grade flour feeding system – with its integrated design of online screening and enclosed conveying – combines screening equipment and feeding system into a complete feeding unit, helping food producers ensure raw material purity at the source, improve production efficiency, and reduce overall costs.
Food Industry Client Testimonials
Nestlé, CP Group, Haitian Flavour & Fragrance, Yihai Kerry, Yili, Mengniu,Shuanghui, Wahaha, Master Kong, Want Want, Anjoy Foods, Angel Yeast,Yangyuan Foods, Uni-President Enterprises, Qiaqia Food, Luhua Group,Alpenliebe, Golden Monkey, Orion, Xizhilang,Sanquan Foods, Synear Food, Oishi, Wong Lo Kat, Yanjing Beer, Seamild,Jinpai, Chubang, Hengshun Vinegar Industry, Longda Group, Beijing Daoxiangcun, Anhe Dairy,Weiwei Group, Xiangpiaopiao, Maiquer, Tianbing, Binqi Food, Ligao Okun
Fortune 500 Client Testimonials
CNPC、CSCEC、Sinochem Holdings、CRCC、China Minmetals Corporation、CNOOC、CR、Sinopharm、CHN Energy、COFCO Corporation、Huawei Technologies、PowerChina、CITIC Group、Wuchan Zhongda Group、NORINCO、Chalco、CNBM、 Shaanxi Coal and Chemical Industry Group、Ansteel Group、CETC、CSSC、CASC、CEC、Jinchuan Group、CASIC、Conch Cement、CNNC、SPH、Shanxi Coking Coal Group、 Zhongtai Chemical、GPHL、DEC、Sinosteel Corporation、MCC、China National Salt Industry Chemical、China Baowu Steel Group、China Animal Husbandry Industry Co., Ltd.、CECEP
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. was founded back in the 1980s. With over 40 years of development, it has been certified as a National-level Specialized, Refined, Unique & Innovative Little Giant Enterprise, National Green Factory, National High-tech Enterprise, and National Intellectual Property Advantage Enterprise, and serves as the President Unit of China Vibration Screening Industry Association.
The company is accredited with the Henan Provincial Industrial Design Center, Henan Provincial Engineering Technology Research Center for Intelligent On-line Screening System, and Xinxiang Municipal Engineering Technology Research Center for Fine Screening.
Gaofu has obtained more than 500 patents including invention patents, utility model patents and design patents, been awarded the Science and Technology Achievement Prize issued by the Ministry of Industry and Information Technology of China, and participated in drafting and formulating 4 national standards.
Gaofu's product portfolio covers multiple series and hundreds of specifications, including vibrating screening equipment, conveying equipment, coal crushing equipment, filtration equipment and automatic material handling systems.
Core products include vibrating screens, screening machines, vibratory sifters, rotary vibrating screens, ultrasonic vibrating screens, linear vibrating screens, airflow screens, gyratory screens, roller screens, dewatering screens, bar screens, vacuum feeding machines, dust-free feeding stations, bulk bag feeding stations, feeding systems, automatic powder feeding systems, automatic slag-discharging filters, leaf filters, clay filters, toothed roll crushers, coal crushers and other machinery.
These products are widely applied in food, pharmaceutical, chemical, metallurgy, construction materials, mining, thermal power, environmental protection and many other industries, winning recognition and trust from over 10,000 clients worldwide.
Gaofu products enjoy strong sales across Greater China, and are exported to more than 100 countries and regions such as Russia, Canada, the United States, New Zealand, Japan, Brazil and South Africa.
Upholding the corporate mission of Improving material quality & efficiency to fully satisfy customer demands, Gaofu maintains long-term partnerships with clients to achieve win-win development.
At present, Gaofu is an official qualified supplier for numerous Fortune Global 500 enterprises, including CNPC, Sinopec, Sinochem Holdings, China Resources Group, Sinopharm Group, COFCO, China National Building Material, China Aerospace Science and Technology Corporation, Jinchuan Group and more.
Gaofu Machinery ranks No.1 in global sales volume of vibrating screens.
In May 2024, Frost & Sullivan, a world-renowned international consulting firm, issued a Market Position Verification Certificate confirming that Gaofu achieved the world's largest shipment volume of vibrating screens in the global market in 2023.
