Over 10,000+ customers' choice, Focus on screening industry 40+ years
Flour, as an ultra‑light, fine powder, presents unique challenges during traditional open feeding:
Dust dispersion makes workshop environment difficult to maintain. Flour particles are typically 80 mesh or finer and very lightweight. The moment a bag is opened and tipped, dust is released into the air. This suspended dust settles on walls, equipment, and pipes, not only affecting workshop cleanliness but also increasing cleaning workloads and costs.
Health risks to employees. Long‑term exposure to high‑concentration dust environments can affect operators' respiratory health. Even with masks, fine flour particles can still be inhaled. Improving air quality in the feeding area is a basic health protection measure for frontline workers.
Material loss means direct economic loss. Every dust emission represents flour spillage and waste. In large‑scale production, the cumulative dust loss at the feeding stage is a cost that cannot be ignored.
Environmental and regulatory pressure. As environmental requirements become increasingly stringent, workshop dust emission standards continue to rise. Poor dust control at the feeding stage can become a "deduction point" during environmental inspections and food safety audits.
The design logic of Gaofu's dust‑free flour feeding station is straightforward yet hits the core issue – preventing dust from ever spreading into the workshop air. Its operating principle can be summarised in three keywords: enclosed, negative pressure, and filtration.
1. Fully enclosed operation physically isolates dust
In traditional feeding, operators cut open flour bags in an open environment and pour the contents into the feed hopper, allowing dust to rapidly disperse throughout the workshop. Gaofu's feeding station features an enclosed operating cabinet where operators complete bag opening and tipping inside the cabinet. The external area is physically isolated from the feeding process. This design structurally blocks the path of dust dispersion into the workshop.
2. Negative‑pressure extraction actively collects dust
The equipment is equipped with a dust collection system that maintains a micro‑negative pressure during operation. When operators cut and tip bags on the feeding platform, dust generated is directionally drawn by the negative‑pressure airflow into the filtration system – it does not escape from the feed opening. This active collection method is more effective than relying solely on an enclosed structure – dust is not just "contained," it is "captured and processed."
3. High‑efficiency filtration achieves air‑dust separation
Dust‑laden air enters the filtration system, where high‑efficiency filter elements capture dust particles. Clean air is exhausted, while dust accumulates on the filter surfaces and eventually falls back into the hopper for recovery. This air‑dust separation process purifies the exhaust air while reducing material loss.
4. Pulse‑jet reverse cleaning ensures sustained high efficiency
The equipment is equipped with a pulse‑jet cleaning device that automatically cleans the filter elements at regular intervals, maintaining consistent filtration efficiency. Operators do not need to manually clean the filters frequently, allowing the equipment to run stably for extended periods.
Switching from traditional feeding to a dust‑free feeding station brings immediate and significant changes to the workshop environment:
Workshop dust concentration drops dramatically. Gaofu's dust‑free feeding station uses a fully enclosed negative‑pressure structure with dust collection efficiency reaching 99.9%. The dust concentration in the feeding area drops from "visibly hazy" to "almost imperceptible." Workshop air becomes fresher, walls and equipment surfaces no longer accumulate powder frequently, and cleaning cycles are significantly extended.
Operator working conditions are notably improved. Operators no longer need to work in a dusty environment or wear heavy protective gear. The feeding task shifts from "dirty, tiring, and unpleasant" to "clean and orderly." This improvement in work experience directly contributes to employee stability and motivation.
Material loss is greatly reduced. Dust captured by the negative‑pressure system is returned to the hopper after filtration, achieving recovery and reuse. There is virtually no spillage or waste during feeding. For processors handling large volumes of flour daily, this loss control can accumulate into substantial long‑term savings.
Environmental and regulatory compliance is more assured. Workshop dust concentrations are kept at very low levels, giving companies greater confidence during environmental inspections and food safety audits.
The value of Gaofu's dust‑free flour feeding station extends beyond dust control. The equipment integrates a vibrating screening module (safety screen) – as material is fed, it passes through the screen to intercept lumps, foreign matter, and impurities. This "feeding‑and‑screening‑in‑one" design ensures material purity at the source, eliminating the need for a separate screening step and reducing equipment investment.
The station outlet can be connected to positive‑ or negative‑pressure conveying systems , enabling fully enclosed material handling from feeding to conveying. After feeding and screening, flour is transferred directly through enclosed pipelines to the next process – with no exposure to the external environment at any point. This eliminates secondary dust generation and reduces contamination risks.
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.
