Over 10,000+ customers' choice, Focus on screening industry 40+ years
Walking into a traditional bakery workshop, the feeding area is often where dust concentration is highest. Operators wearing masks carry, open, and tip flour bags amid swirling dust. Walls, equipment, and floors are covered with a thick layer of powder, requiring frequent cleaning. Behind these issues lies the deeper dilemma of traditional flour feeding methods:
Dust emission 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, air disturbance carries a large quantity of fine particles into suspension. Dust not only settles on equipment surfaces, increasing cleaning burdens, but also disperses throughout the workshop. Flour dust is a combustible dust – accumulation to a certain concentration also poses a safety hazard.
Low manual efficiency limits production capacity. Operators must carry each 25kg bag of flour to the feed opening, open it, tip the contents, and clean up residue – repeating this sequence for every bag. In large‑scale production, this repetitive labour not only consumes physical energy but also limits the amount of material that can be fed per unit time.
Material exposure creates contamination risks. Flour is exposed to the workshop environment multiple times during manual handling, bag opening, and tipping, increasing the possibility of foreign matter contamination. For bakery products that are consumed directly, any foreign matter can affect taste, appearance, and even pose food safety risks.
Gaofu's flour vacuum feeder uses the negative‑pressure vacuum conveying principle. 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 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. The entire conveying and discharge process is controlled by pneumatic three‑way valves that open and close automatically, managed by a central control unit.
The core of this technical approach is: flour no longer relies on manual handling and tipping – it "flows automatically" through enclosed piping to the target location under negative pressure. The powder remains in motion throughout the piping and never contacts outside air or personnel.
1. Enclosed negative‑pressure conveying eliminates dust emission at the source
Gaofu's vacuum feeder features a fully enclosed conveying design – the entire process takes place in a sealed system with no powder leakage. After operators place flour bags on the feeding platform, material is drawn in and conveyed in an enclosed negative‑pressure environment, with dust efficiently collected. This design physically blocks the path of dust dispersion into the workshop, effectively controlling environmental dust concentration.
2. Automated feeding significantly improves supply efficiency
The vacuum feeder achieves fully automated operation from feeding to conveying. Operators no longer need to manually handle, weigh, or dump ingredients – automated feeding is 3‑5 times faster than manual operation. For bakeries requiring continuous production, this means the feeding stage no longer bottlenecks the entire production line. The equipment occupies minimal space and can convey powder in confined areas regardless of distance.
3. Fully enclosed operation ensures raw material purity
From the moment flour enters the feed point, it travels through enclosed piping with no contact with outside air or personnel – eliminating dust contamination and foreign matter intrusion risks. The equipment has no gaps or dead corners where material can accumulate, and surfaces are easy to inspect and clean. For bakery food production, this design protects raw material purity at the source.
4. Food‑grade materials meet hygiene standards
The main structure of Gaofu's vacuum feeder is constructed of food‑grade stainless steel with polished internal surfaces that are smooth, non‑stick, and easy to clean. The system design fully considers the hygiene requirements of the food industry, with no dead corners. The equipment can be widely used for enclosed conveying of various powders in the food, pharmaceutical, chemical, and other industries.
5. Conveying capacity covers various production needs
Gaofu's vacuum feeder is available in multiple models, with conveying capacities covering 200‑6000 kg/h and conveying distances of 5‑30 metres. For flour conveying, different models can be selected to suit production needs ranging from small‑to‑medium bakeries to large food factories. The system can also be integrated with screening and metering modules for integrated "screening‑conveying‑metering" operation.
In actual bakery production scenarios, Gaofu's vacuum feeder has demonstrated quantifiable improvements:
Significantly improved workshop environment. Enclosed negative‑pressure conveying substantially reduces dust concentration in the feeding area – workshop air cleanliness is notably enhanced. Operators no longer need to work in dusty conditions, and the working experience is markedly improved.
Greatly improved feeding efficiency. Automated feeding replaces the repetitive manual tasks of handling, opening, and tipping. The system can automatically adjust feed rate according to production sequence without manual intervention, achieving seamless "feeding‑mixing‑forming" operation.
Effective control of material loss. Fully enclosed conveying means no spillage or waste during conveying – the piping can achieve "zero" material residue.
More stable product quality. The system can be optionally equipped with automatic metering modules, with flour metering accuracy error controllable to within ±0.5%. Precise feeding ensures consistent ingredient ratios batch after batch.
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.
