Over 10,000+ customers' choice, Focus on screening industry 40+ years
In traditional mechanical conveying methods, the quality loss of powder materials often occurs in ways that are "invisible":
Particle breakage – compromising both mouthfeel and appearance. Mechanical conveying equipment such as screw conveyors and tubular chain conveyors rely on spiral blades or chains to forcibly push, squeeze, and friction‑drive material forward. For relatively fragile powder materials such as powdered sugar, milk powder, and protein powder, this "mechanical impact + friction" conveying method readily causes particle breakage. The resulting fines not only affect the appearance of the finished product but also directly impact the mouthfeel of the final product – the fineness of powdered sugar, the solubility of milk powder, and the dispersibility of protein powder are all closely related to particle integrity.
Oxidation and volatilisation of flavour compounds – "invisible loss" of quality. Flavour components in food powders are often sensitive. During open or semi‑enclosed conveying, material is exposed to air – flavour compounds may deteriorate through oxidation or be lost through volatilisation. Conveying methods with inadequate sealing also allow material to absorb workshop odours, directly affecting the purity of product flavour.
Foreign matter contamination – food safety risks. The trays, chains, and other components of traditional mechanical conveying equipment are prone to wear after long‑term operation – metal or plastic particles may contaminate the material, causing a decline in raw material purity and failing to meet food production safety standards. For food ingredients consumed directly – such as powdered sugar and milk powder – any foreign matter contamination is an unacceptable quality risk.
Gaofu's food powder vacuum conveying system achieves low‑breakage conveying because its working principle is fundamentally different from mechanical conveying methods:
Replacing "mechanical forced pushing" with "gentle airflow conveying."
Traditional mechanical conveying relies on spiral blades or chains to apply force to the material – material continuously impacts and rubs against equipment walls during forward movement, causing particles to fracture under repeated impact. Gaofu's vacuum conveying system works completely differently: the 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. Material moves through the piping in a suspended state, with greatly reduced collision and friction against pipe walls.
In simple terms: traditional mechanical conveying "pushes material along" – material breaks under extrusion and friction; Gaofu's vacuum conveying "lets material float through the airflow" – material moves in suspension, with greatly reduced collision and friction.
Mirror‑polished pipe interiors – further reducing friction damage.
The pipe interiors of Gaofu's vacuum conveying system are finely polished (surface roughness Ra≤0.8μm) – as smooth as glass. Smooth pipe walls further reduce friction between material and pipe walls, making it particularly suitable for food powders with high particle integrity requirements.
What are the actual results? In a customised potato flakes conveying system designed by Gaofu Machinery for one client, replacing traditional tubular chain conveying with negative‑pressure pneumatic conveying reduced material breakage rate from 5% to below 1% – maximising the preservation of the material's flake structure. This case fully validates the practical effectiveness of vacuum conveying technology in low‑breakage conveying – when the conveying object changes from flake materials to powder materials such as powdered sugar and milk powder, the low‑breakage advantage applies equally.
While low breakage addresses "particle integrity," the quality protection of food powders extends far beyond that. The fully enclosed piping design of Gaofu's vacuum conveying system protects the flavour and purity of food powders across multiple levels:
Fully enclosed isolation from oxygen – slowing flavour oxidation. The entire conveying process takes place in a sealed system with no powder leakage. From the moment material enters the piping until it reaches its destination, it is completely isolated from outside air – effectively reducing contact between flavour compounds and oxygen, slowing the rate of oxidative deterioration. For fat‑containing materials such as milk powder and seasoning powders, this design is particularly important.
Preventing absorption of foreign odours – maintaining flavour purity. Food powders have strong adsorptive properties and readily absorb odours from the workshop environment. Fully enclosed conveying keeps material in enclosed piping throughout transfer – never contacting workshop air – fundamentally eliminating the possibility of odour absorption.
Zero‑contamination conveying – ensuring food safety. Material is conveyed entirely within sealed piping – preventing contamination from external sources (such as dust and airborne microorganisms) while also preventing wear particles from conveying equipment from contaminating the material. Raw material contamination rate can be reduced to zero. For food manufacturers seeking GMP certification, this design provides reliable food safety assurance at the equipment level.
While low breakage and flavour protection address quality issues, the automation capability of the vacuum conveying system provides efficiency assurance for large‑scale production:
Conveying capacity covers 200‑6,000 kg/h. Meeting various needs from laboratory R&D to large‑scale production. Conveying distance reaches 5‑30 metres – flexibly configurable according to workshop layout.
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. For food processors requiring large‑scale production, the material transfer stage no longer bottlenecks the entire production line.
Fully enclosed negative‑pressure conveying – significantly improved workshop environment. The negative‑pressure design keeps pipe pressure below atmospheric pressure – even if there are minor gaps in the piping, no dust will escape. In application cases, workshop dust concentration dropped from 8 mg/m³ to below 0.3 mg/m³ – fully compliant with food industry cleanroom standards.
Gaofu's food powder vacuum conveying system is widely suitable for enclosed conveying of various food powders and granular materials – particularly suited for materials with high requirements for particle integrity and flavour protection:
Powdered sugars: White sugar powder, rock sugar powder, etc. – high fineness retention requirements
Dairy products: Milk powder, whey powder, protein powder, etc. – high particle integrity and purity requirements
Seasonings: Seasoning powders, spice powders, etc. – high flavour protection requirements
Bakery ingredients: Flour, starch, premix powders, etc.
Food additives: Various powdered food additives
The cross‑process transfer of food powders requires not just "moving it and delivering it" but "delivering it unchanged" – particles not broken, flavour not lost, purity not compromised. There is an inherent conflict between the "squeeze + friction" of traditional mechanical conveying methods and the "fragile + sensitive" nature of food powders. Gaofu Machinery's food powder vacuum conveying system – with its negative‑pressure pneumatic gentle conveying for low breakage, fully enclosed piping for isolation from oxygen and odours, and mirror‑polished pipe interiors for reduced friction damage – lets food powders "float through the airflow" during transfer, protecting the original quality and flavour of food powders at the conveying stage.
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.
