Over 10,000+ customers' choice, Focus on screening industry 40+ years
The screening difficulty of materials such as protein powder and whole milk powder stems from their special physical and chemical properties:
Fat content is the source of "stickiness." These materials contain vegetable fats or milk fats. During screening, friction between powder and the screen generates heat – the fat forms a sticky film on the screen surface. Fine powder is "glued" by this film, accumulating thicker and thicker. One processed meat powder manufacturer reported that their material had high oil content (containing fats and vegetable oils), causing the material to readily adhere to the screen during screening.
Static electricity and moisture absorption are accomplices to "blockage." Fine powder generates static electricity through friction – charged particles attract each other to form agglomerates while adhering firmly to the screen surface. At the same time, materials such as milk powder and protein powder have a certain degree of hygroscopicity – during storage or screening, they readily absorb moisture and form lumps that become wedged in the mesh openings.
The limitations of conventional equipment worsen the problem. Conventional linear screens processing high‑fat, easy‑to‑lump materials lack effective anti‑sticking and anti‑blockage mechanisms – material quickly accumulates on the screen surface, and screening efficiency declines steadily.
To address the characteristics of high‑fat, easy‑to‑lump materials, Gaofu's SZF series anti‑sticking and anti‑blockage food powder linear vibrating screen incorporates multiple specialised design and functional optimisations:
Adjustable excitation angle – gently breaking lumps.
Gaofu's linear vibrating screen features an adjustable excitation angle – vibration parameters can be adjusted to effectively break lumped material, maintaining material flowability and screening efficiency on the screen surface. For materials prone to moisture absorption and lumping, the high‑frequency linear vibration of the linear screen can break lumps, allowing powder material to be uniformly dispersed and screened. This design addresses the lumping problem from the motion mechanism – rather than the passive approach of "cleaning after blinding."
Bouncing ball cleaning system – continuous knocking, real‑time blinding prevention.
High‑elasticity bouncing balls are installed below the screen – during operation, they continuously strike the screen, generating high‑frequency vibration that promptly dislodges fine particles wedged in the mesh. For high‑fat, adhesion‑prone materials, the impact of the bouncing balls effectively prevents sticky material from blocking the screen. This "screening‑while‑cleaning" design keeps the screen fully permeable throughout the screening process – eliminating the need for frequent manual cleaning. The bouncing ball cleaning system is particularly suitable for screening starch, salt, powdered sugar, milk powder, and other food ingredients.
Anti‑sticking screen surface treatment – reducing adhesion through material selection.
For high‑viscosity materials, Gaofu's linear vibrating screen can be equipped with diamond‑shaped or wedge‑shaped screen plates – effectively preventing mesh blinding. Considering that food powders may contain oils, the screen surface can be configured with anti‑sticking coatings, or ultrasonic cleaning devices can be used. These design features further reduce the risk of material adhesion at the screen material and structure level.
Fully enclosed stainless steel structure – clean production, preventing secondary moisture absorption.
The equipment features a fully enclosed design – effectively preventing dust emission during screening and avoiding secondary material contamination. The enclosed structure isolates external moisture, preventing high‑fat materials from absorbing moisture and worsening lumping during screening. All material‑contact parts can be made of SUS304 or SUS316L stainless steel – meeting food‑grade hygiene standards, corrosion‑resistant, and easy to clean.
Typical application scenarios of Gaofu's SZF series anti‑sticking and anti‑blockage linear vibrating screen in food powder processing include:
Fine screening of protein powder and meal replacement powders. Protein powder and meal replacement powders have high fineness – typically requiring 80‑120 mesh or even finer screening accuracy. Conventional linear screens are prone to blinding – Gaofu's linear screen addresses ultra‑fine powder adhesion and blinding through the dual anti‑blockage solution of bouncing ball cleaning + optional ultrasonic cleaning.
Fine filtration of whole milk powder. Whole milk powder contains milk fat – during screening, it readily adheres to the screen. Gaofu's linear screen's anti‑sticking coating and bouncing ball cleaning design effectively relieve fat adhesion, ensuring milk powder purity and fineness uniformity.
Impurity removal filtration of oil‑containing seasoning powders. Seasoning powders such as chilli powder and five‑spice powder often contain coarse fibres, seed husks, and other impurities during grinding – and some seasoning powders contain oil. Gaofu's linear screen's anti‑sticking and anti‑blockage design effectively intercepts impurities while avoiding blinding caused by oil adhesion.
Large‑scale screening of starches and powdered sugars. Starches and powdered sugars are prone to moisture absorption and lumping during storage – Gaofu's linear screen's adjustable excitation angle design effectively breaks lumps, ensuring smooth screening.
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.
