Over 10,000+ customers' choice, Focus on screening industry 40+ years
Dust during food powder feeding originates from the combination of material properties and operational methods. Materials such as powdered sugar, starch, and milk powder have fine particles and low bulk density – the moment a bag is opened and tipped, large quantities of fine powder rapidly disperse with air currents. In traditional open feeding methods, dust can travel several metres, and workshop dust concentration often far exceeds food production cleanroom standards.
The impact of dust is multi‑dimensional. Dust not only causes direct raw material loss but also increases workshop cleaning burdens. Long‑term exposure to high‑concentration dust environments poses potential respiratory health risks to operators. For food manufacturers seeking GMP certification, inadequate dust control is often a "negative mark" during inspections. Traditional dust control methods – installing exhaust fans, regular cleaning, and requiring employees to wear masks – are all "passive responses" after dust has been generated and cannot fundamentally solve the problem.
Gaofu's food powder dust‑free feeding station integrates three core technologies – negative‑pressure dust collection, vibrating screening, and intelligent control – and is a specialised enclosed bag‑opening and feeding device developed for powders and granular materials. Its working principle can be summarised in three keywords: enclosed, negative pressure, and filtration.
Enclosed – structurally blocking dust dispersion paths. The equipment features a fully enclosed structure – operators complete bag opening and feeding on an enclosed feeding platform, with the external area physically isolated from the feeding process. The dust collection fan prevents material dust from dispersing during bag opening.
Negative pressure – active collection rather than passive defence. The feeding platform maintains a micro‑negative pressure during operation. Dust generated during bag opening and feeding is directionally drawn into the filtration system rather than escaping. Dust collection efficiency reaches 99.9% , with dust concentration controlled to ≤0.1 mg/m³ – complying with GMP, FDA, and other stringent standards. The feeding platform operates under negative pressure – no dust leakage, no material loss during feeding – protecting the clean environment.
Filtration – achieving complete air‑dust separation. Dust‑laden air enters the filtration system, where high‑efficiency filter elements capture dust particles. Clean air is exhausted, while dust is retained on the filter surfaces. The equipment is equipped with a pulse‑jet dust collector that automatically cleans filter elements at regular intervals – collected dust is 100% returned to the hopper, with material loss ≤0.5%.
Built‑in screening module – feeding and impurity removal in one step. The vibrating screen (safety screen) intercepts oversized material and foreign matter, ensuring that only合格 material proceeds to the next process. This "feeding‑and‑screening‑in‑one" design ensures material purity at the source.
Gaofu's food powder dust‑free feeding station is widely suitable for bag opening, feeding, screening, and discharging of small‑bag materials in the food, pharmaceutical, and chemical industries – particularly suitable for manual powder feeding and pre‑screening. In the food processing sector, its main application scenarios include:
Bakery ingredient feeding. The feeding of flour, powdered sugar, milk powder, cocoa powder, and other bakery ingredients is one of the dustiest stages. Gaofu's dust‑free feeding station controls dust dispersion at the source through fully enclosed negative‑pressure feeding – achieving feeding rates of 500‑2,000 bags per hour – 3‑5 times faster than traditional manual feeding.
Seasoning and additive feeding. Starches, seasonings, food additives, and other powdered materials readily generate dust during feeding. The negative‑pressure dust collection system of the feeding station effectively captures dust generated during feeding – the feeding process is safe, reduces physical labour, and protects personnel safety.
Meal replacement and solid beverage ingredient feeding. Protein powder, fruit and vegetable powder, dietary fibre powder, and other high‑value powder ingredients demand higher cleanliness at the feeding stage. The hygienic‑grade design and food‑grade stainless steel construction of the dust‑free feeding station ensure a pure, contamination‑free feeding process.
Multi‑product changeover production. Food processors typically handle multiple product varieties – with frequent changeovers between different materials. The equipment is designed to hygienic standards – easy to clean, residue‑free – enabling rapid switching between different materials and effectively preventing cross‑contamination.
In one practical application at a bread factory in Hebei Province, the performance of Gaofu's dust‑free feeding station has been validated. The factory's original production line used manual feeding – a single line required 3‑4 operators per shift – with workshop dust concentration exceeding standards, failing to meet food production cleanroom requirements while also affecting operator respiratory health.
After adopting Gaofu's dust‑free feeding station solution, operators simply place bagged powder into the enclosed feed opening – the negative‑pressure system captures dust in real time, with clean air exhausted after filter filtration. Dust collection efficiency exceeded 99.5% – workshop dust concentration dropped from 12 mg/m³ to below 0.5 mg/m³ – completely solving the feeding dust problem and meeting food GMP cleanroom standards. A single system can supply material to three production lines simultaneously, requiring only one operator for monitoring – reducing labour input by 80% compared with traditional methods.
Key features of Gaofu's food powder dust‑free feeding station include:
Fully enclosed negative‑pressure structure – feeding platform operates under negative pressure – no dust leakage, 99.9% dust collection efficiency, dust concentration ≤0.1 mg/m³
Food‑grade stainless steel construction – 304/316L food‑grade stainless steel – polished internal surfaces – smooth, non‑stick, easy to clean
GMP‑standard design – equipment complies with GMP standards – meeting food industry clean production requirements
Built‑in vibrating screening module – impurity removal during feeding – intercepting lumps and foreign matter
PLC intelligent control – one‑touch start/stop, feed rate monitoring, automatic filter cleaning
Pulse‑jet automatic cleaning – collected dust 100% returned to hopper – material loss ≤0.5%
Compatible with conveying systems – can be connected to positive‑/negative‑pressure conveying systems for material supply
Dust problems at the food powder feeding stage cannot be solved through end‑of‑pipe measures – the solution lies at the source by preventing dust from ever having the chance to disperse into the workshop air. Gaofu Machinery's food powder dust‑free feeding station – with its fully enclosed negative‑pressure structure for blocking dust dispersion, 99.9% dust collection efficiency for a clean environment, food‑grade stainless steel construction compliant with GMP standards, and PLC intelligent control for improved feeding efficiency – provides food processors with a practical solution that solves powder feeding dust problems at the source.
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.
