Over 10,000+ customers' choice, Focus on screening industry 40+ years
The reason cross‑process transfer of food powders has become a "hard‑hit area" for dust emission lies in the combination of material properties and transfer methods. Materials such as powdered sugar, milk powder, and starch have fine particles and low bulk density. During open pouring, belt conveying, or manual handling, large quantities of fine powder escape from equipment gaps and connection points into the workshop air. In traditional mechanical conveying methods, material is exposed to the workshop environment multiple times during transfer – each transfer is an opportunity for dust emission.
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 "penalty point" 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. 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 vacuum conveying system effectively solves the dust problem in powder transfer because its working principle is fundamentally different from traditional transfer methods.
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 in enclosed piping. It completely eliminates material "spillage, leakage, emission, and drip" during feeding and conveying – effectively solving the dust emission problem. 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.
Negative‑pressure environment – active collection rather than passive defence.
Unlike open transfer where dust "passively disperses," the negative‑pressure environment of vacuum conveying means dust is "actively collected" – material is drawn into the piping by negative‑pressure airflow rather than escaping. This active collection method is more effective than simply relying on an enclosed structure. The negative‑pressure design keeps pipe pressure below atmospheric pressure – even if there are minor gaps in the piping, no dust will escape.
In simple terms: traditional transfer is "people carry material, material is exposed, dust flies" – Gaofu's vacuum conveying is "material enters piping, piping is enclosed, no dust" – from the moment powder enters the piping until it reaches its destination, it never contacts outside air, and dust has no opportunity to be generated or dispersed.
What are the actual results? In one food company's practical application, after adopting Gaofu's vacuum conveying system, workshop dust concentration dropped from 8 mg/m³ to below 0.3 mg/m³ – fully compliant with food industry cleanroom standards. Numerous customers have reported that after system implementation, workshop dust concentration can be stably maintained below 0.5 mg/m³ – far below industry compliance standards.
While solving the dust pollution problem, Gaofu's food powder vacuum conveying system brings systematic environmental and efficiency improvements to food workshops:
Significantly improved workshop environment – easily passing GMP audits.
The fully enclosed negative‑pressure conveying substantially reduces dust concentration in the workshop air – walls and equipment surfaces no longer accumulate powder frequently, cleaning cycles are significantly extended, and operator working conditions are fundamentally improved. The entire machine design complies with GMP clean production standards for the food and pharmaceutical industries – helping food companies easily meet increasingly stringent environmental and food safety regulatory requirements.
Greatly reduced material loss – lowering raw material costs.
Fully enclosed pipe conveying means no spillage or waste during transfer – the piping can achieve "zero" residue. For high‑value food ingredients such as powdered sugar and milk powder, this loss control accumulates into substantial long‑term savings. In one bakery's actual case, after introducing Gaofu's automated feeding system, raw material loss dropped from 2% to 0.3% – saving RMB 420,000 in raw material costs annually.
Automated feeding – reducing manual intervention and exposure from the source.
The equipment uses a vacuum pump to generate negative pressure suction – automatically conveying powder and granular materials to designated locations, with conveying capacity covering 200 kg/h to 6,000 kg/h. Operators no longer need to manually handle, weigh, or dump ingredients – significantly reducing personnel exposure to dusty environments. 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 . In one spicy snack factory in Shandong, feeding labour was reduced from 5 to 2 people – saving RMB 180,000 annually in labour costs alone.
Reducing dust explosion risks – ensuring production safety.
Powder materials such as flour and starch can form dust clouds during conveying, posing explosion risks. The fully enclosed negative‑pressure design of the vacuum conveying system creates a micro‑vacuum environment within the piping – fundamentally eliminating dust explosion safety hazards. The system can also be equipped with a dust explosion protection system (CNEX certified) and CIP cleaning interfaces.
Gaofu's food powder vacuum conveying system is widely suitable for enclosed conveying of various food powders and granular materials:
Powdered sugars: White sugar powder, rock sugar powder, icing sugar, etc.
Starches: Corn starch, potato starch, wheat starch, etc.
Dairy products: Milk powder, skimmed milk powder, whey powder, etc.
Bakery ingredients: Flour (high‑gluten, low‑gluten, all‑purpose), premix powders, cocoa powder, etc.
Seasonings: Monosodium glutamate (MSG), chicken powder, salt, spice powders, etc.
Food ingredients: Yeast powder, premix powders, food additives, etc.
The cross‑process transfer of food powders requires not just "moving it and delivering it" but "delivering it cleanly, without dust, and without contamination" – completing dust‑free transfer from one point to another in enclosed piping – without emission, waste, or threat to employee health. Traditional transfer 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.
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.
