Over 10,000+ customers' choice, Focus on screening industry 40+ years
Starch and meal replacement powder screening face several common challenges in actual production:
Capacity bottlenecks – throughput cannot keep up with production line rhythm. Starch and meal replacement powder production lines typically operate 24/7, with hourly throughput often measured in tonnes. Conventional narrow‑screen equipment is limited by screen width – material is concentrated on the screen surface, the material bed is too thick, and fine powder struggles to pass through. When feed rate increases, the screen surface becomes overloaded, screening efficiency drops, and feed rate must be reduced – the screening stage becomes the "bottleneck" of the entire production line.
The conflict between screening accuracy and throughput. Starch and meal replacement powders have strict fineness requirements. Starch typically requires 80‑120 mesh screening, while meal replacement powders – such as protein powder and dietary fibre powder – require even finer specifications. When pursuing higher throughput, conventional equipment often sacrifices grading accuracy; when pursuing accuracy, throughput suffers. Balancing "accuracy" and "capacity" is a core challenge in screening equipment selection.
Fine powder blinding affects continuous production. Starch and meal replacement powders have high fines content – during screening, they readily block the screen mesh. Blinding causes screening efficiency to decline steadily – frequent stoppages for cleaning not only reduce throughput but also increase labour costs.
Gaofu's SZF series wide‑screen food powder linear vibrating screen uses dual vibrating motors operating in synchronised opposite directions. When the two motors run in opposite directions, the lateral excitation forces cancel each other out, while the longitudinal forces are transmitted through the vibration‑transmitting body to the entire screen box, generating stable linear vibration on the screen surface. Under the combined action of excitation force and gravity, material is thrown up on the screen surface and moves forward in a straight line in a parabolic bouncing motion. Particles smaller than the screen openings pass through to the lower layer, while oversize material travels along the screen surface to the outlet – completing grading and impurity removal.
The equipment supports flexible configurations of 1 to 5 screen decks , enabling a single machine to produce 2 to 6 different particle size fractions simultaneously. Screening particle size covers 0.074‑5 mm , with screen mesh covering 8‑120 mesh (up to 400 mesh) . Screened particles are uniform in size with stable, reliable accuracy.
The processing efficiency advantage of Gaofu's SZF series wide‑screen food powder linear vibrating screen stems from its systematic design in screen width:
Wider screen surface provides the physical foundation for high throughput.
In linear screen design, screen width determines throughput – the wider the screen, the more dispersed the material on the screen surface, the thinner the material bed, and the easier it is for fine powder to contact and pass through the screen. Gaofu's SZF series wide‑screen models offer various screen sizes from 500×2000 mm to 1500×4000 mm. The SZF‑1540 model, for example, has a screen width of 1500 mm and a length of 4000 mm. This large screening area provides the physical foundation for high throughput – enabling a single machine to match the capacity rhythm of large‑scale production lines. Single‑machine throughput covers 15‑500 t/h – suitable for both small‑batch fine screening and large‑scale continuous production line operations.
Uniform material distribution – high screen utilisation.
The wider screen surface gives material ample space for dispersion at the feed end. The material bed is spread thin and flat – fine powder is no longer "buried" at the bottom – and screening efficiency improves significantly. The wide‑screen model, combined with the linear screen's bouncing forward motion, causes material to be continuously turned, loosened, and stratified on the screen surface – screen utilisation across all areas is more balanced, avoiding efficiency losses from local overloading or local idle areas.
Multi‑deck grading – multiple specifications from one feed.
The equipment supports flexible configurations of 1 to 5 screen decks. For starch and meal replacement powder production, the upper deck intercepts lumps and foreign matter, the middle decks achieve different particle size fractions, and the lower deck acts as a safety screen to ensure finished product purity – one machine, multiple functions – reducing material transfers between units.
Fully enclosed stainless steel structure – safeguarding food safety.
Food powders are consumed directly or indirectly – placing strict requirements on screening equipment materials and hygiene standards. Gaofu's SZF series wide‑screen linear vibrating screen features a fully enclosed design that effectively prevents dust emission during screening and avoids secondary material contamination. All material‑contact parts can be made of SUS304 or SUS316L stainless steel – meeting food‑grade hygiene standards. The fully enclosed screening also significantly reduces material loss, helping companies lower production costs.
Stable operation – suitable for 24‑hour continuous production.
Food processing typically operates on continuous production lines – placing high demands on equipment stability and reliability. Gaofu's SZF series wide‑screen linear vibrating screen has a compact, well‑designed structure with strong rigidity and good impact resistance – suitable for 24‑hour uninterrupted production. The equipment is easy to maintain – screens use a clamp‑type fixing structure for quick and simple replacement – with low failure rates and reduced downtime.
Adjustable angle – adaptable to different material characteristics.
The excitation angle is adjustable – allowing flexible adjustment according to different material characteristics. For free‑flowing materials, the angle can be increased to raise throughput; for materials with high fines content, the angle can be decreased to extend the screening path and improve grading accuracy.
Gaofu's SZF series wide‑screen food powder linear vibrating screen is widely used for screening and grading of various food powders and granular materials – core application scenarios include:
Starches: Corn starch, potato starch, tapioca starch, etc.
Meal replacement powders: Protein powder, fruit and vegetable powder, dietary fibre powder, etc.
Powdered sugars: White sugar powder, rock sugar powder, etc.
Seasonings: Salt, monosodium glutamate (MSG), chicken powder, chilli powder, etc.
Bakery ingredients: Flour, breadcrumbs, freeze‑dried foods, etc.
Dairy products: Milk powder, whey 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
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.
