Over 10,000+ customers' choice, Focus on screening industry 40+ years
Powder dispersion during food powder screening mainly originates from the following areas:
Inadequate equipment sealing – fine powder "squeezed" through gaps. Conventional filtration equipment often has insufficient sealing at connections between the screen frame and the machine body, as well as at feed and discharge interfaces. Fine food powder is "squeezed" through these gaps during vibration, continuously dispersing into the workshop air.
Air currents generated by material movement carry fine powder. During screening, material moves on the screen surface, driving surrounding air flow and creating localised air currents – fine powder particles are carried by these air currents and escape through open sections or gaps.
High fines content and low bulk density – easily airborne. Food powders such as powdered sugar and starch have fine particles and low bulk density – on traditional open or semi‑enclosed filtration equipment, they readily escape into the workshop air.
The impact of dust dispersion is multi‑dimensional: it not only causes direct raw material loss but also pollutes the workshop environment and increases cleaning burdens. For food manufacturers seeking GMP certification or food safety audits, inadequate dust control is often a "deduction point" during inspections.
The core design of Gaofu's fully enclosed food powder filtration sieve lies in its fully enclosed sealing structure. This is not simply "adding a cover" – it is a complete sealing system from feeding, screening, to discharging.
Clamp‑type fully enclosed sealing design. The equipment features a clamp‑type fully enclosed sealing design with multi‑layer silicone seals – from the feed inlet to each discharge outlet, all connections are sealed. Food powder remains in an enclosed environment from entering the screening chamber to finished product discharge – fine powder cannot escape through equipment gaps.
Fully enclosed structure – powder does not disperse, liquid does not leak. The equipment features a fully enclosed structure – during operation, powder does not disperse and liquid does not leak. The entire machine uses a modular enclosed structure, with food‑grade silicone seals at all connections, effectively preventing dust leakage.
Compatible with dust collection systems – active dust capture. The fully enclosed structure can be connected to a dust collection system – when connected, dust concentration in the screening area can be controlled at very low levels. Fine powder particles are directionally drawn by negative‑pressure airflow as soon as they are generated – giving dust no opportunity to disperse.
In simple terms: conventional filtration equipment allows powder to "escape, leak, spill, and drip" in an open environment, while Gaofu's fully enclosed food powder filtration sieve keeps food powder "contained" in a closed chamber throughout the filtration process – fine powder has no escape route and is effectively collected.
The most direct value that Gaofu's fully enclosed food powder filtration sieve brings to food manufacturers is a significant reduction in raw material loss.
Fine powder no longer escapes – every gram of raw material is effectively collected. The fully enclosed structure ensures near‑zero dust emission during filtration – food powder remains in an enclosed environment from entering the equipment to finished product discharge. For high‑value food ingredients such as powdered sugar and milk powder, this loss control accumulates into substantial long‑term savings.
No material retention inside the machine – reducing residue waste. The fully enclosed structure combined with thoughtful design means no material retention inside the machine – reducing material residue and waste. The fully enclosed structure effectively prevents dust emission and secondary contamination.
Purification rate improved compared to open screening. The fully enclosed structure effectively suppresses ultra‑fine powder emission, reducing loss of high‑value materials. For food powder processors, this means higher raw material utilisation and lower operating costs.
Beyond reducing raw material loss, the fully enclosed design also brings systematic environmental improvements to food production workshops:
Significantly reduced workshop dust concentration. The fully enclosed structure ensures near‑zero dust emission during filtration – workshop dust concentration is greatly reduced. During operation, there is no dust emission – meeting the hygiene requirements of food GMP workshops.
Walls and equipment surfaces no longer accumulate powder frequently. Dust no longer escapes from equipment gaps – workshop walls and equipment surfaces no longer accumulate powder frequently, cleaning cycles are significantly extended, and cleaning labour and material costs decline simultaneously.
Operator working conditions are fundamentally improved. Operators no longer need to work in dusty environments or wear heavy protective gear. Improved work experience directly contributes to employee stability and motivation.
Compliant with environmental and food hygiene standards. The fully enclosed structure ensures no dust emission – meeting environmental production requirements while complying with food industry GMP clean production standards.
While the fully enclosed structure solves the powder dispersion and raw material loss problems, the core requirements of food powder filtration – high‑precision filtration and efficient impurity removal – must also be ensured. Gaofu's fully enclosed food powder filtration sieve delivers excellent filtration precision, providing reliable quality assurance for food manufacturers:
High‑precision filtration – precise, controllable fineness. The filtration sieve features non‑blocking mesh and no powder emission – capable of screening down to 400 mesh , with a screening particle size range covering 0.038‑5 mm. For typical food powder filtration requirements, this accuracy capability provides ample margin – ensuring consistent finished product fineness.
Automatic impurity discharge – supporting continuous operation. Impurities and oversize material are automatically discharged , enabling automated operation. Operators do not need to stop frequently to clean the screen surface – the equipment can run continuously, increasing effective output per unit time.
Easy screen changes – simple operation, convenient cleaning. The unique screen frame design allows screen changes in just 3‑5 minutes. The separate mother‑screen / fine‑screen design means the fine screen does not directly bear the impact of the material – extending screen service life.
High screening and filtration efficiency – wide applicability. The equipment is durably designed – suitable for any powder or viscous liquid. Whether for dry screening of powdered sugar and starch or filtration of slurries, it delivers consistent filtration performance.
While the fully enclosed structure solves the powder dispersion and loss problems, another core requirement of food powder filtration – hygiene and safety – must also be ensured through materials and construction.
304/316L food‑grade stainless steel construction. All material‑contact parts are made of 304 or 316L food‑grade stainless steel – corrosion‑resistant, rust‑proof, and with no material contamination risk. 304 stainless steel complies with food contact metal material standards – ensuring no heavy metal contamination during filtration.
Mirror‑polished surfaces – no dead corners. Internal and external surfaces are finely mirror‑polished – no dead corners. All welds are finely ground – no recesses, no dead corners – preventing material residue and bacterial growth.
Compliant with GMP and food hygiene standards. The entire machine design complies with GMP standards – meeting the clean production requirements of the food industry. The fully enclosed structure effectively prevents dust emission during filtration and avoids material cross‑contamination.
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.
