Over 10,000+ customers' choice, Focus on screening industry 40+ years
In the cross‑process feeding of food powders, traditional methods have long faced three unavoidable problems:
Dust emission – workshop environment becomes difficult to maintain. Food powders such as powdered sugar, milk powder, and starch have fine particles and low bulk density. During manual handling, open pouring, or belt conveying, large quantities of fine powder escape from equipment gaps and connection points into the workshop air. Dust not only settles on equipment surfaces, increasing cleaning burdens, but can also migrate to other clean areas, compromising the segregation between different cleanliness zones.
Cross‑contamination risks – high risks during multi‑product changeovers. Food processors typically handle multiple product varieties – powdered sugar, milk powder, starch, seasoning powders, and more – with frequent changeovers between different materials. In traditional feeding methods, material is exposed to the workshop environment multiple times – residue from the previous batch may contaminate the next batch, and different powders may also "cross‑flavour" each other through dust dispersion, directly affecting product flavour consistency.
Low manual efficiency – constraining large‑scale production. Manual handling, weighing, and feeding are not only limited in efficiency but also physically demanding. In large‑scale production, the material feeding stage often becomes a bottleneck for the entire production line, constraining capacity release.
The working principle of Gaofu's food powder vacuum conveying system is fundamentally different from traditional feeding methods. It no longer relies on manual handling or mechanical conveyors – instead, it uses negative pressure as the driving force and enclosed piping as the channel, allowing powder to complete its transfer from one point to another through piping.
Its core working process is: a vacuum pump evacuates the system, creating a vacuum state. Powdered material is drawn into the suction nozzle with outside air, forming an air‑material mixture that travels through the enclosed conveying pipe to the hopper, where air and material are separated. The separated material then enters the receiving equipment. The entire conveying process takes place in a sealed system with no powder leakage.
The equipment is equipped with a compressed air pulse‑jet cleaning system that blows back through the filters during each discharge cycle, dislodging powder adhering to the filter surface to ensure continuous and stable conveying. Conveying and discharge are automatically controlled by pneumatic three‑way valves, managed by a central control unit.
In simple terms: traditional feeding is "people carry material, material is exposed" – Gaofu's vacuum conveying is "material enters piping, piping is enclosed" – from the moment powder enters the piping until it reaches its destination, it never contacts outside air or personnel.
1. Fully enclosed pipe conveying – completely eliminating dust emission
Gaofu's vacuum conveying system uses a fully enclosed negative‑pressure conveying principle – the entire transfer process takes place within enclosed piping. It completely eliminates material "spillage, leakage, emission, and drip" during feeding and conveying. Fully enclosed pipe conveying is dust‑free and leak‑free, keeping the workshop clean. For easily airborne food powders such as powdered sugar and milk powder, this means dust has no opportunity to disperse at the transfer source.
2. Complete isolation from external contamination – ensuring product purity
Raw materials never contact air or personnel from storage through conveying – eliminating dust contamination and foreign matter intrusion. Enclosed pipe conveying reduces material contamination from the environment and personnel, improving cleanliness. The entire conveying process takes place in a sealed system with no powder leakage. For food manufacturers seeking GMP certification, this design provides reliable food safety assurance at the equipment level.
3. Automated conveying – significantly improving feeding efficiency
The vacuum conveying system uses a vacuum pump to generate negative pressure suction – automatically conveying powder and granular materials to designated locations. Automated feeding is 3‑5 times faster than manual operation – single‑line capacity can be increased by over 30% ; one system can replace 3‑5 workers – no manual handling, weighing, or dumping of ingredients – significantly reducing labour costs. Conveying capacity covers 200 kg/h to 6,000 kg/h – meeting various needs from laboratory R&D to large‑scale production.
4. Flexible conveying distance – adapting to different workshop layouts
Conveying distance reaches 1‑30 metres – flexibly configurable according to workshop layout. Horizontal conveying can reach 10‑50 metres , and vertical conveying can reach 3‑15 metres. The equipment has a small footprint and can complete powder conveying in confined spaces regardless of distance.
5. Food‑grade stainless steel construction – meeting hygiene standards
The equipment body and all material‑contact parts are made of 304/316L food‑grade stainless steel – with polished internal surfaces that are smooth, non‑stick, and easy to clean and maintain. The entire machine design complies with GMP requirements – meeting food industry clean production standards. The system design fully considers the hygiene requirements of food producers, with no dead corners, providing equipment‑level assurance for food safety.
Typical application scenarios of Gaofu's food powder vacuum conveying system in the food processing industry include:
Cross‑process enclosed conveying of powdered sugar and starch: Fully enclosed conveying from feeding stations to mixers, from storage bins to packaging lines – eliminating dust emission
High‑cleanliness conveying of milk powder and protein powder: For materials with extremely high purity requirements – fully enclosed, isolated from external contamination
Multi‑product changeover conveying of seasoning powders: Enclosed pipe conveying keeps different materials flowing in their own independent systems – effectively preventing cross‑contamination
Long‑distance feeding of bakery ingredients: Automated feeding from raw material silos to various workstations on the production line – replacing manual handling
Central kitchen powder supply system: An automated powder supply solution specifically designed for food processing and catering industries – achieving fully enclosed conveying from feeding to production equipment
The cross‑process feeding of food powders may seem like just one step in the production line – but it directly affects workshop environment, employee health, product quality, and production efficiency. Traditional feeding methods rely on end‑of‑pipe measures that deal with dust "after it is generated." Gaofu Machinery's food powder vacuum conveying system offers a different path – preventing dust from ever having the chance to be generated or dispersed – through fully enclosed negative‑pressure pipe conveying, enabling dust‑free transfer of various food fine powders from one point to another in enclosed piping, supporting truly enclosed feeding operations in food processing workshops.
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.
