Over 10,000+ customers' choice, Focus on screening industry 40+ years
In food GMP workshops, the feeding stage is the first entry point for materials into the clean area – and a critical control point for dust management. Protein powder is an ultra‑fine powder (whey protein powder can have a particle fineness of up to 43 microns) with low bulk density. During traditional open bag‑opening and feeding, it readily generates dust. Dust not only pollutes the workshop environment and endangers operator health but can also migrate to other clean areas, compromising the segregation between different cleanliness zones.
The dust‑free operation of Gaofu's protein powder feeding system begins with the dust‑free feeding station. Operators complete bag opening and tipping on an enclosed feeding platform that maintains a micro‑negative pressure during operation – under the action of the exhaust fan, negative pressure is created inside the working chamber, directionally drawing dust generated during feeding into the filtration system and preventing it from escaping outside the cabinet. The feeding platform operates under negative pressure – no dust leakage, no material loss during feeding – protecting the clean environment.
The equipment features a fully enclosed structure with 99.9% dust collection efficiency , maintaining dust concentration at ≤0.1 mg/m³ – complying with GMP, FDA, and other stringent standards. This dust control level far exceeds conventional clean workshop requirements – meaning the feeding area can meet GMP clean production standards. At the same time, the dust‑free feeding station is designed to hygienic standards – easy to clean, residue‑free – with safe feeding operations that reduce physical labour and protect personnel safety.
Protein powder may form lumps due to moisture absorption during storage and transport, or become contaminated with packaging debris, threads, and other foreign matter. Gaofu's feeding system integrates a vibrating screening module – before entering the conveying pipe, raw materials pass through high‑efficiency screening where lumps are effectively broken and foreign matter is reliably intercepted. The online vibrating screen detects and removes impurities in real time, ensuring that protein powder entering the production process is fine and pure. The system complies with GMP (Good Manufacturing Practice) standards – protecting the purity and safety of end‑products from the source.
After feeding and screening are completed, protein powder enters the conveying stage. Gaofu's feeding system uses fully enclosed pneumatic conveying – combined with a negative‑pressure dust collection system – reducing dust emission to extremely low levels. Raw materials never contact air or personnel from feeding through conveying. The entire conveying process takes place in enclosed piping – the internal surfaces of conveying pipes are mirror‑polished, with no dead corners and minimal material residue.
The value of fully enclosed conveying is systematic:
Eliminating dust emission. The system completely eliminates material "spillage, leakage, emission, and drip" during feeding and conveying – effectively solving the dust emission problem and helping create a dust‑free workshop compliant with food GMP clean production standards. The system uses fully enclosed pneumatic conveying design, effectively controlling workshop dust concentration to ≤10 mg/m³ , complying with the requirements of the General Hygiene Standard for Food Production (GB 14881‑2013). The piping can achieve "zero" material residue.
Preventing cross‑contamination. Protein powder production workshops typically handle multiple product varieties – whey protein, soy protein, pea protein, collagen, and more – with frequent changeovers. The fully enclosed conveying system keeps different materials flowing in their own enclosed piping, physically preventing cross‑contamination. The entire process from feeding, storage, to conveying is fully enclosed – complying with HACCP food safety management system requirements – helping workshops maintain a cleaner environment and easily pass various hygiene audits.
No raw material exposure, no secondary contamination – fully compliant with food GMP workshop hygiene standards.
Food GMP workshops have strict requirements for production equipment materials and construction. Gaofu's feeding system features a main structure of 304/316L food‑grade stainless steel – with polished internal surfaces that are smooth, non‑stick, and easy to clean. The system design fully considers GMP (Good Manufacturing Practice) requirements for the food industry – with no dead corners – providing reliable food safety assurance at the equipment level.
The equipment features a quick‑release structural design with no dead corners – facilitating routine inspection and cleaning. It can be equipped with CIP (Clean‑In‑Place) cleaning interfaces – paired with a CIP system, it quickly removes raw material residue, effectively preventing cross‑contamination between different products. Particularly suitable for multi‑product changeover production.
The equipment can be equipped with a dust explosion protection system (CNEX certified). For environments with conductive dust, anti‑static filter elements with proper grounding can be selected – reducing the risk of static charge accumulation on dust. Core equipment has passed national explosion‑proof (CNEX) certification.
Food GMP workshops demand extremely high batching accuracy. Protein powder is a high‑value material – batching accuracy directly determines product quality stability. The precise metering capability of Gaofu's feeding system comes from the coordinated operation of PLC control modules and high‑precision sensors. The system monitors powder flow in real time, keeping metering errors within minimal ranges.
Dedicated automatic metering modules for powdered materials like protein powder achieve metering accuracy errors of ≤±0.5%. For medium‑to‑large batches, batching accuracy can reach ±0.2% ; for small batches, errors are ≤±0.1% ; for micro‑additives, accuracy can be as low as ±0.05%. The system supports multiple batching methods – gain‑in‑weight, loss‑in‑weight, dynamic multi‑component, and others – flexibly selectable according to production process requirements.
The system is equipped with a touchscreen interface – multiple recipes can be preset and the feeding process started with one touch. Managers can monitor key information in real time – material inventory, feed rate, metering data – at a glance. The system supports multiple preset recipes – one‑touch product changeovers. The system supports integration with MES information systems – raw material usage data is uploaded in real time for digital management. Through high‑precision sensors and AI learning calibration programmes , the system recalibrates metering parameters in real time – ensuring every batch of raw materials is precisely proportioned.
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
Originated in the 1980s, Xinxiang Gaofu Machinery Co., Ltd. has developed into a leading enterprise after more than 40 years of steady development. The company holds authoritative national qualifications including National-level Specialized, Refined, Unique and Innovative Little Giant Enterprise, National Green Factory, National High-tech Enterprise, and National Intellectual Property Advantage Enterprise, and acts as the President Unit of the Vibration Industry Association.
It has established three provincial and municipal R&D platforms: Henan Provincial Industrial Design Center, Henan Provincial Engineering Technology Research Center for Intelligent On-line Screening System, and Xinxiang Municipal Fine Screening Engineering Technology Research Center. Up to now, Gaofu has obtained more than 500 patents covering invention, utility model and design. It has been awarded the Science and Technology Achievement Prize by the Ministry of Industry and Information Technology of China and has participated in drafting and formulating 4 national standards.
Gaofu's product portfolio covers multiple series and hundreds of specifications, mainly including vibrating screening equipment, conveying equipment and intelligent automatic material handling systems. We provide one-stop overall solutions such as automatic feeding systems, powder supply systems, pneumatic conveying systems, metering and weighing systems, batching systems, micro-ingredient batching systems, water supply systems, oil supply systems, fluid conveying systems, central kitchen powder supply systems, powder conveying systems and feeding systems.
In terms of food production lines, our mature supporting systems cover two major categories: baking production lines and pasta production lines. The baking series includes production lines for bread, cake, crisp cake, croissant, toast, pizza, biscuit and hamburger. The pasta series includes intelligent production lines for steamed buns, stuffed buns, twisted rolls, sesame paste cakes, steamed dumplings, boiled dumplings, fried dough sticks and pies.
Gaofu products sell well across Greater China and are exported to more than 100 countries and regions worldwide, including Russia, Canada, the United States, New Zealand, Japan, Brazil and South Africa. Widely applied in food, pharmaceutical, chemical, metallurgical, building materials, mining, thermal power, environmental protection and other industries, our products have won the trust and recognition of over 10,000 global customers.
Adhering to the corporate mission of improving material quality and efficiency to meet customer needs, Gaofu has long-term stable cooperative relationships with global clients to achieve harmonious and win-win development. At present, Gaofu has become an official qualified supplier of many Fortune Global 500 enterprises, including CNPC, Sinopec, Sinochem Group, China Resources Group, Sinopharm Group, COFCO, China National Building Material, China Aerospace and Jinchuan Group.
