Over 10,000+ customers' choice, Focus on screening industry 40+ years
Dietary supplement raw materials come in many varieties with different physical properties, and the screening stage faces the following practical issues:
Fine powders easily blind the screen, causing frequent stoppages. Materials such as protein powder and plant extracts are often very fine (typically above 80 mesh) and tend to adhere to the screen surface due to electrostatic charges during screening. Fine particles gradually block the mesh, causing screening efficiency to drop continuously – often requiring stoppages for cleaning after just a few minutes of operation.
Low bulk density prevents natural passage through the screen. Materials like dietary fibre powder and pollen are extremely light (pollen particles are typically 10‑50 microns) and cannot easily pass through high‑mesh screens by gravity on conventional vibrating screens, often failing to meet design throughput.
High cross‑contamination risk and strict hygiene requirements. Health food production demands high cleanliness standards – equipment must be easy to clean and sanitise to prevent cross‑contamination between different batches and product types. In addition, all parts that contact materials must meet food‑grade hygiene standards.
Conventional vibrating screens rely on mechanical vibration to make materials "bounce" through the screen – this works for heavy particles, but for lightweight dietary supplement raw materials, the particles are often thrown away before they even contact the screen surface.
The working principle of Gaofu's QLSP series centrifugal sifter is fundamentally different: material is mixed and atomised with airflow after passing through a screw conveying system, then enters a cylindrical screen drum. Inside the drum, rotor blades subject the material to both centrifugal force and propelling force, forcing it to pass through the screen. Fine particles that pass through are discharged from the fines outlet, while oversize material travels along the screen wall and is discharged from the oversize outlet.
This design – "air as the carrier, centrifugal force as the driving power" – allows lightweight powders to "actively" pass through the screen carried by airflow, rather than relying on gravity settlement.
Key Features of Gaofu's QLSP Series Centrifugal Sifter
1. Designed for difficult‑to‑screen materials with a wide screening range
The QLSP series is specifically designed for 80‑635 mesh ultra‑fine powders, with screen mesh covering 5 to 500 mesh. Processing capacity varies by model, reaching 3,000 to 5,000 kg/hour, with classification efficiency of 93% to 99% . Whether for fine grading of protein powder or impurity removal of plant extracts, there is a suitable model available.
2. Airflow self‑cleaning eliminates frequent stoppages
The root cause of screen blinding in traditional vibrating screens is that materials rely on gravity to pass through, allowing fines to accumulate on the screen surface. The centrifugal sifter is different – 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. This design effectively reduces stoppages caused by blinding and supports continuous production.
3. De‑agglomeration function breaks up soft lumps
Dietary supplement raw materials may form soft lumps during storage or conveying. The QLSP series is equipped with a de‑agglomeration function that breaks up soft lumps, ensuring that lumps are dispersed into individual particles before entering the screening zone, preventing screening efficiency loss caused by agglomerates.
4. Fully enclosed negative‑pressure structure prevents dust emission
The equipment features a fully enclosed structure with excellent sealing performance – no dust escapes during operation. Fine powder is classified within a closed chamber, protecting the workshop environment and improving material recovery. For health food production, this design also effectively prevents cross‑contamination between different materials.
5. Food‑grade stainless steel construction meets hygiene standards
All parts that contact material are made of food‑grade 304 stainless steel (316L available on request), with finely polished surfaces, no dead corners, and easy cleaning – eliminating material residue and cross‑contamination. The equipment complies with health food production hygiene requirements.
6. Can be integrated into pneumatic conveying systems for full‑line compatibility
The QLSP series can be connected in series with positive‑ or negative‑pressure pneumatic systems and can withstand 0.1 MPa of operating pressure. For plants with existing pneumatic conveying lines, seamless integration is achievable. The equipment can operate as a single unit or in multiple units, supporting long‑duration continuous operation.
7. Easy cleaning, suitable for multi‑product changeovers
Dietary supplement manufacturers typically handle multiple product varieties and formulations. The QLSP series is easy to clean and suitable for small‑batch, multi‑product screening – effectively preventing cross‑contamination from material mixing.
Gaofu's QLSP series centrifugal sifter is suitable for screening and impurity removal of various dietary supplement and health food materials, including but not limited to:
Protein‑based raw materials: whey protein powder, soy protein powder, pea protein powder, etc.
Plant extracts: various herbal extract powders, concentrated plant powders, etc.
Dietary fibre powders: oat fibre powder, inulin, konjac powder, etc.
Probiotic powders and enzyme powders: fine grading of ultra‑fine active powders
Vitamin premixes: pre‑screening before blending various powdered additives
Pollen and spore powders: fine screening of ultra‑light, electrostatic materials
Nutritional supplement raw materials: calcium powder, iron powder, amino acid powder, etc.
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
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.
