Over 10,000+ customers' choice, Focus on screening industry 40+ years
Feeding dust from food powders 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 disperse with air currents. In traditional open feeding methods, dust can travel several metres.
The impact of dust is multi‑dimensional. Dust emission during flour and starch feeding not only endangers worker health and pollutes the workshop environment but also causes direct raw material loss and increases cleaning burdens. For food manufacturers seeking GMP certification or food safety audits, inadequate dust control is often a "negative mark" during inspections.
Traditional dust control methods treat the symptoms, not the root cause. Installing exhaust fans, regular cleaning, and requiring employees to wear masks – these measures are all "passive responses" after dust has been generated. Truly effective dust control should start at the source – preventing dust from ever having the chance to disperse into the workshop air.
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. This active collection method is more effective than simply relying on an enclosed structure – as soon as dust is generated, it is captured and processed, with no opportunity to disperse. Dust collection efficiency reaches 99.9% , with dust concentration controlled to ≤0.1 mg/m³.
Filtration – achieving complete air‑dust separation. Dust‑laden air enters the filtration system, where high‑density 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%.
In one practical application at a bread factory in Hebei Province, after adopting Gaofu's dust‑free feeding station, workshop dust concentration dropped from 12 mg/m³ to below 0.5 mg/m³, with dust collection efficiency exceeding 99.5% – completely solving the feeding dust problem.
The value of Gaofu's food powder dust‑free feeding station extends beyond dust control – it delivers practical improvements in efficiency, hygiene, and cost:
Significantly improved feeding efficiency. The equipment achieves feeding rates of 500‑2,000 bags per hour – 3‑5 times faster than traditional manual feeding. For food processors requiring large‑scale production, this means the feeding stage no longer bottlenecks the entire production line.
Effective labour cost reduction. The PLC intelligent control system supports one‑touch start/stop, feed rate monitoring, and automatic filter cleaning – reducing labour costs by over 60% . Operators no longer need to work in dusty, physically demanding conditions – labour intensity is significantly reduced.
Better hygiene and safety assurance. The equipment uses 304/316L food‑grade stainless steel for all material‑contact parts – with polished internal surfaces, no dead corners, and non‑stick properties. The entire machine design complies with GMP (Good Manufacturing Practice) standards – meeting the clean production requirements of the food industry. At the same time, the built‑in vibrating screening module (safety screen) intercepts lumps and foreign matter during feeding – ensuring material purity at the source.
Greatly reduced material loss. The fully enclosed negative‑pressure structure ensures no material loss during feeding – the pulse‑jet system returns 100% of collected dust to the hopper. For high‑value food ingredients such as powdered sugar and milk powder, this loss control accumulates into substantial long‑term savings.
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. Whether flour, starch, powdered sugar, milk powder, seasoning powders, or food additive powders – all can be fed dust‑free.
The station can be connected to positive‑/negative‑pressure conveying systems for material supply to the production line – achieving fully enclosed operation from feeding to conveying. For businesses requiring multi‑product changeover production, the equipment is designed to hygienic standards – easy to clean, residue‑free – enabling rapid switching between different materials and effectively preventing cross‑contamination.
Dust problems at the food powder feeding stage cannot be solved through end‑of‑pipe measures like "wearing masks" or "frequent cleaning" – 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.
