Over 10,000+ customers' choice, Focus on screening industry 40+ years
Powder conveying in grain and oil production lines differs from general industrial material handling. As a food ingredient, flour conveying must simultaneously meet three dimensional requirements: efficiency, cleanliness, and stability.
Continuous production demands high feeding stability. Modern grain and oil production lines typically operate 24/7. Any interruption in the feeding system – whether caused by equipment failure, material blockage, or manual operation delays – will directly result in the entire production line coming to a halt. The operational stability of the feeding system is directly linked to the plant's production capacity and profitability.
Strict dust control and food safety standards. As a food ingredient consumed directly, flour conveying must comply with the requirements of the General Hygiene Standard for Food Production (GB 14881‑2013). In traditional open conveying methods, flour dust not only contaminates the workshop environment but can also become a carrier of microorganisms and foreign matter, affecting food safety.
Feeding accuracy directly affects product quality. The quality consistency of grain and oil products depends on precise control of ingredient ratios. Whether for bread, noodles, or pastries, deviations in flour quantity directly affect the taste and appearance of the finished product.
Multi‑product production demands feeding flexibility. Grain and oil producers typically handle multiple product varieties and formulations. The feeding system must have the capability for rapid changeovers and flexible adaptation.
Gaofu's flour feeding system adopts a modular design, comprising four core units: Dust‑Free Feeding Station, Intelligent Screening Module, Pneumatic Conveying Device, and Visualisation Control Centre. These four units work in synergy to form a complete closed‑loop system from raw material feeding to production supply.
Dust‑Free Feeding Station – controlling dust at the source. Operators place flour bags on the feeding platform. When the equipment starts, material is fed in an enclosed negative‑pressure environment. Dust is efficiently collected by the dust collection device, keeping the workshop environment clean. The feeding platform operates under micro‑negative pressure – no dust leakage, no material loss during feeding. This design not only protects operator health but also creates a more standardised working environment for the enterprise.
Intelligent Screening Module – ensuring raw material purity. During storage and transport, flour may form lumps due to moisture absorption or become contaminated with packaging debris, threads, and other foreign matter. Gaofu's feeding system integrates a vibrating screening module – before entering the conveying pipe, flour passes through high‑efficiency screening where lumps are effectively broken and foreign matter is reliably intercepted. The online vibrating screen detects and removes impurities in real time, ensuring that flour entering the production process is fine and pure.
Pneumatic Conveying Device – enabling enclosed continuous feeding. The system uses a combination of positive‑pressure and negative‑pressure pneumatic conveying, delivering flour through enclosed piping to mixers, storage tanks, or the next process. The entire conveying process takes place in an enclosed environment, effectively preventing material contact with the outside, reducing material loss and secondary contamination risks. Compared with traditional screw conveying, pneumatic conveying saves approximately 40% in energy.
Visualisation Control Centre – enabling intelligent management and control. The system is equipped with a PLC automation control system, enabling automatic start/stop, operating status monitoring, and fault alarming. Operators can monitor key information in real time – material inventory, feed rate, metering data – through the touchscreen interface.
Gaofu's flour feeding system's continuous conveying capability is derived from its systematic design across multiple technical levels:
Fully enclosed pneumatic conveying eliminates dust emission. The system uses fully enclosed pneumatic conveying design – raw materials never contact air or personnel from feeding through conveying. The internal surfaces of conveying pipes are mirror‑polished, with no dead corners and minimal material residue. The system effectively controls workshop dust concentration to ≤10 mg/m³, complying with food production hygiene standards. The piping can achieve "zero" material residue.
Dual positive/negative pressure modes for different conveying scenarios. The system is equipped with positive‑pressure + negative‑pressure dual‑mode pneumatic conveying, allowing flexible selection of conveying method based on material characteristics and conveying distance. Negative‑pressure vacuum conveying enables rapid material transfer and storage; positive‑pressure conveying, combined with high‑precision weighing sensors, achieves precise metering. Conveying capacity covers 200‑6000 kg/h, with conveying distances of 1‑30 metres.
Intelligent coordinated control ensures feeding continuity. The system incorporates an intelligent coordinated control module that automatically adjusts feed rate according to production process timing. Flour, sugar powder, and other ingredients are automatically fed at the right rate according to the process sequence, without manual intervention, achieving seamless "feeding‑mixing‑forming" operation. The system can automatically adjust feed rate and timing according to production schedules, achieving synchronous coordination between processes.
Stable operation with low failure rates. With over 40 years of experience in material handling, Gaofu Machinery's equipment excels in sealing, wear resistance, and long‑term operational stability. Solutions are specifically designed for different material characteristics (e.g., hygroscopic, lump‑prone, dust‑prone) to ensure smooth, blockage‑free conveying while reducing material loss and cross‑contamination.
In actual grain and oil production line applications, Gaofu's flour feeding system delivers quantifiable improvements:
Significantly improved production efficiency. Automated feeding is 3‑5 times faster than manual operation, increasing single‑line capacity by over 30%. The system can connect multiple mixers on a single pipeline – quantitative feeding does not occupy mixing time, significantly improving production rhythm.
Substantial labour cost reduction. One system can replace 3‑5 workers – no manual handling, weighing, or dumping of ingredients. Each production line requires only 1‑2 operators, significantly reducing labour and management costs. After introducing the system, one medium‑sized baked snack manufacturer needed only 3 operators to complete the feeding work that previously required 8 people – production efficiency increased by over 50%.
Effective control of material loss. Fully enclosed conveying design reduces material loss rate from 3% in traditional processes to below 0.5%. 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.
More stable product quality. Precise metering and batching ensure consistent ingredient ratios batch after batch. Metering accuracy for flour and sugar powder can be controlled within ±0.5%. This fundamentally solves product taste fluctuation issues caused by inaccurate batching.
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.
