Over 10,000+ customers' choice, Focus on screening industry 40+ years
Electrostatic adhesion – fine powder agglomeration. Sugar particles are very fine – during screening, friction between particles generates static electricity. Charged fine particles attract each other to form agglomerates while adhering firmly to the screen surface – ordinary screens quickly become "clogged." The finer the sugar, the stronger the electrostatic effect, and the faster the blinding.
Frequent blinding – low efficiency. Powdered sugar is highly hygroscopic – it readily absorbs moisture from the air during storage and screening, forming hard lumps of varying sizes. The combination of electrostatic adhesion and moisture‑induced lumps makes screen blinding a constant problem – frequent stoppages for cleaning severely reduce throughput.
Dust emission – loss and contamination. Powdered sugar is light and fine – on traditional open or semi‑enclosed screening equipment, it readily escapes from equipment gaps into the workshop air. This not only causes raw material loss but also contaminates the workshop environment and poses potential health risks to operators.
The design philosophy of Gaofu's QLSP series centrifugal sifter is to fundamentally abandon traditional vibration modes and adopt an aerodynamic design. It no longer relies on mechanical vibration to make material "bounce" through the screen – instead, it allows sugar powder to be screened within an airflow.
The working process can be broken down into three key steps:
Step 1: Screw conveying – airflow mixing and atomisation. After material enters the equipment through the screw conveying system, it is thoroughly mixed and atomised with high‑speed airflow. Sugar powder particles are dispersed by the airflow – agglomerated fines are broken down into individual particles suspended in the airflow.
Step 2: Centrifugal propulsion – dual forces driving particles through the screen. The dispersed individual particles enter the cylindrical screen drum with the airflow. Through the rotation of the rotor blades inside the drum, the material is subjected to the dual action of centrifugal force and propelling force. Driven by these two forces, powder particles are propelled through the screen. Qualified fine powder is discharged from the fines outlet, while oversize material travels along the screen wall and is automatically discharged from the oversize outlet.
Step 3: Continuous airflow scouring – automatic screen cleaning for sustained permeability. During screening, the airflow continuously scours the screen surface – achieving automatic screen cleaning. Fine particles cannot accumulate on the screen surface – the screen remains fully permeable, eliminating the need for frequent stoppages.
In simple terms: sugar powder no longer "squeezes" through the screen as agglomerates – it is thoroughly dispersed in the airflow and passes through as individual particles "floating" with the airflow. This technical approach fundamentally solves the problems of electrostatic agglomeration and blinding.
For food processors, the cleanliness of screening equipment is just as important as a dust‑free workshop.
Fully enclosed negative‑pressure structure – no dust emission. Gaofu's QLSP series centrifugal sifter features a fully enclosed structure with excellent sealing performance – no dust escapes during operation. For high‑value, easily airborne materials like sugar, this design improves the workshop environment and reduces material loss.
Supports single‑unit or multi‑unit operation – long‑duration continuous running. The equipment can operate as a single unit or in multiple units – supporting long‑duration continuous operation with high safety and reliability. For bakery ingredient processors requiring 24‑hour production, this means higher equipment utilisation and more stable output.
Food‑grade stainless steel construction – meeting hygiene standards. All sugar‑contact parts are made of food‑grade 304 stainless steel – with polished surfaces, no dead corners, and easy cleaning – fully compliant with food‑grade hygiene standards. This fundamentally prevents heavy metal contamination, ensuring every grain of sugar is pure and safe.
Addressing the three major pain points of ultra‑fine sugar screening, the QLSP series centrifugal sifter provides corresponding solutions:
1. Electrostatic agglomeration → airflow dispersion, preventing agglomeration at the source
Sugar powder entering the sifter is first thoroughly mixed and atomised with high‑speed airflow. Under the strong impact of the airflow, existing agglomerates are rapidly broken apart, and individual particles become suspended in the airflow. This process is completed before the material even contacts the screen – fundamentally preventing agglomerates from entering the screening zone.
2. Adhesion and blinding → cyclone scouring, automatic screen cleaning
The screen is continuously scoured by the rotating airflow, achieving automatic self‑cleaning. Material remains suspended in the airflow and cannot accumulate on the screen surface. Fine particles cannot adhere to the screen – blinding is fundamentally eliminated.
3. Ultra‑fine powder difficult to pass → centrifugal propulsion, forced passage
For ultra‑fine sugar above 200 mesh, conventional screening equipment often falls short. The QLSP series uses the dual action of centrifugal force and propelling force to "propel" powder particles through the screen. Sugar particles no longer "wait" to pass through – they are "actively" driven through the mesh, achieving passage rates of over 95%.
4. Wide screening fineness coverage – significantly increased throughput
Screen mesh covers 5‑500 mesh. Whether for commercial sugar conventional screening or ultra‑fine baking sugar fine grading, suitable configurations are available. Screening efficiency is 5‑10 times that of conventional vibrating screens. For sugar processors, this means significantly more qualified finished product in the same amount of time.
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.
