Over 10,000+ customers' choice, Focus on screening industry 40+ years
The most frustrating problem in protein powder screening is screen blinding. Conventional vibrating screens rely on mechanical vibration to make material bounce on the screen surface, using gravity to push fine particles through the mesh. However, for ultra‑light, sticky, and easily agglomerated powders like protein, fine particles agglomerate under electrostatic forces before they even have a chance to reach the screen surface. Worse still, the high‑frequency vibration of conventional screens intensifies particle friction and static generation, creating a vicious cycle of "more vibration, more blinding."
The QLSP centrifugal sifter fundamentally eliminates this problem through its working principle. Material is thoroughly mixed and atomised with airflow after passing through a screw conveying system, then uniformly enters the built‑in cylindrical screen drum. Inside the drum, high‑speed rotor blades generate strong centrifugal force and propelling force – the dual action drives合格 fine particles to pass through the screen at high speed. Oversize material travels along the screen wall and is discharged in an orderly manner.
In simple terms: protein powder fines no longer "squeeze" through the screen as agglomerates – they are thoroughly dispersed in the airflow and pass through as individual particles carried by the airflow.
The equipment is equipped with automatic screen cleaning technology – the airflow continuously scours the screen surface, keeping the mesh open without manual intervention. The screen is continuously swept by the rotating airflow, achieving automatic self‑cleaning. Fine particles cannot accumulate on the screen surface – blinding is fundamentally eliminated.
Protein powder production lines typically operate 24/7. Conventional vibrating screens require frequent stoppages for cleaning due to blinding – reducing throughput and increasing labour costs. The throughput advantages of the QLSP centrifugal sifter are reflected in several aspects:
Throughput per unit time is 5‑10 times that of conventional vibrating screens. The centrifugal sifter fully disperses powder in the airflow, preventing material agglomeration, allowing individual particles to pass through the screen uniformly with the airflow. The QLSP18‑65 model, for example, achieves a processing capacity of 3,000 kg/h. For protein powder processors, this means significantly more合格 finished product in the same amount of time – the screening stage no longer bottlenecks the entire production line.
Wide fineness range – flexible adaptation to different requirements. The QLSP series covers screen mesh from 5 to 500 mesh. Whether for conventional soy protein screening (80‑200 mesh) or ultra‑fine whey protein screening (above 200 mesh), suitable configurations are available.
High screening efficiency with stable classification accuracy. Screening efficiency reaches over 95%. For powders in the 80‑325 mesh range, actual screening efficiency consistently exceeds 95%, with flexible adjustment from 50 to 500 mesh and stable, controllable classification accuracy.
Supports 24‑hour uninterrupted continuous operation. The fully enclosed negative‑pressure structure ensures low noise and low energy consumption. The equipment can operate as a single unit or in multiple units, supporting long‑duration continuous operation with high safety and reliability.
Protein powder is a high‑value material – fines loss directly affects profitability. The QLSP centrifugal sifter's design for reducing fines loss is equally noteworthy:
Fully enclosed negative‑pressure structure eliminates dust emission. The equipment features a fully enclosed design – feed and discharge ports are sealed with flanges, achieving near‑zero leakage. Fine powder is classified within a closed chamber, protecting the workshop environment and improving material recovery. The high‑efficiency dust recovery system directly returns trace amounts of entrained material to production, achieving a material recovery rate of over 99%. For high‑value materials like protein powder, dust control is not just about the workshop environment – it directly affects material loss and economic efficiency.
De‑agglomeration function breaks soft lumps. Protein powder may form soft lumps during storage or conveying. The QLSP series is equipped with a de‑agglomeration function that breaks up soft lumps. Lumps are dispersed into individual particles before entering the screening zone, preventing material waste caused by agglomerates.
Food‑grade stainless steel construction ensures product purity. All material‑contact parts are made of food‑grade 304 stainless steel , complying with food contact material standards and ensuring contamination‑free material contact. The equipment meets food and pharmaceutical industry hygiene standards, effectively preventing cross‑contamination between different product types.
The main technical parameters of Gaofu's QLSP series centrifugal sifter are as follows:
| Model | Material | Applicable |
| QLSP18-35 | Q235A/SUS304 | under 500mesh |
| QLSP30-80 | Q235A/SUS304 | under 500mesh |
| QLSP30-100 | Q235A/SUS304 | under 500mesh |
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.
