Over 10,000+ customers' choice, Focus on screening industry 40+ years
Conventional vibrating screens rely on mechanical vibration to make material bounce on the screen surface, using gravitational potential energy to push fine particles through the mesh. For heavier granular materials, this method works effectively.
However, for ultra‑light, sticky, and easily agglomerated powders like protein, the limitations of conventional vibrating screens are clear:
Fine particles cannot settle effectively. Protein powder particles are extremely light and low in density – on the screen surface, they struggle to settle onto the mesh by gravity alone. Instead, they float and tumble with the vibration, failing to pass through in a timely manner.
Electrostatic agglomeration worsens blinding. High‑frequency vibration intensifies particle friction, generating static electricity. Charged fine particles attract each other to form agglomerates, while simultaneously adhering to the screen surface and rapidly blocking the mesh.
The vicious cycle of "more vibration, more blinding." The higher the vibration intensity, the more intense the friction, the stronger the static charge, and the faster the blinding occurs.
In other words, the conventional vibrating screen's reliance on "gravity settling" for screening lightweight powders has an inherent efficiency bottleneck.
The design philosophy of Gaofu's QLSP centrifugal sifter is to fundamentally replace "gravitational potential energy" with "air kinetic energy."
The core structure of the equipment is a cylindrical screen drum housed inside the machine body. Its 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. Protein powder particles are dispersed by the airflow – agglomerated fines are broken down into individual particles suspended in the airflow.
In simple terms: protein powder no longer enters the screening zone as agglomerates – it is suspended in the airflow as individual particles.
Step 2: Centrifugal propulsion – dual forces driving particles through the screen.
The dispersed individual particles enter the 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.
The essence of this process is: material does not "wait" to pass through the screen – it is "driven" 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 – fine particles cannot accumulate on the screen surface, achieving automatic screen cleaning. The screen remains open at all times, eliminating the need for frequent stoppages.
Understanding the above working principle makes it easy to understand the core advantages of the centrifugal sifter in high‑precision protein powder screening:
Precise classification with controllable fineness. Screen mesh covers 5 to 500 mesh – with precise fineness and no oversize or mis‑grading. By changing the screen mesh, different fineness requirements can be flexibly accommodated – from 80 to 500 mesh in a single machine.
High screening efficiency with large throughput. The centrifugal sifter achieves screening efficiency of over 95% , with throughput 5‑10 times that of conventional vibrating screens. Product fineness is precise with no oversize or mis‑grading.
No sticking, no blinding. Material remains suspended in the airflow and cannot accumulate on the screen surface. For blinding‑prone materials like protein, this feature fundamentally eliminates blinding.
No dust emission. The equipment features a fully enclosed negative‑pressure structure – no dust escapes during operation. Fine powder is classified within a closed chamber, protecting the workshop environment and reducing material loss.
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.
