Over 10,000+ customers' choice, Focus on screening industry 40+ years
The reason powdered sugar is difficult to screen lies in its unique physical and chemical properties.
Hygroscopicity is the source of "stickiness." Sugar particles are fine with a large specific surface area, making them highly prone to absorbing moisture from the air. Once moisture is absorbed, the surface of the particles dissolves to form a syrup film, and adjacent particles recrystallise and bond together during drying, forming hard lumps of varying sizes. These lumps become wedged in the mesh openings during screening, blocking the screen.
Electrostatic adhesion is the accomplice to "blockage." Powdered sugar generates static electricity through particle friction during screening. Charged fine particles attract each other to form agglomerates while adhering firmly to the screen surface. The combination of moisture‑induced lumps and electrostatic adhesion makes powdered sugar significantly more difficult to screen than ordinary powdered materials. Fine sugar readily generates static electricity and absorbs moisture to form lumps that block the mesh – the equipment requires a dedicated screen cleaning structure to continuously clear the mesh and avoid frequent stoppages for cleaning.
The limitations of conventional equipment worsen the problem. When processing sugar, conventional screening equipment offers short material movement paths and insufficient dispersion – fine powder easily accumulates locally, further accelerating blinding. Equipment often suffers from "blinding shortly after starting."
The bouncing ball self‑cleaning system of Gaofu's sugar rotary vibrating sieve is the core design that solves the sugar adhesion problem.
Food‑grade silicone bouncing balls are evenly distributed between the screen and the support plate. During operation, the balls continuously bounce beneath the screen, delivering high‑frequency impacts against the underside of the screen. Each impact dislodges sugar fines adhering to the screen and "pops" lumps wedged in the mesh openings. This "screening‑while‑cleaning" design keeps the screen fully permeable throughout the screening process.
In simple terms: the bouncing balls act as a tireless "screen cleaner" beneath the screen – continuously knocking during sugar screening to prevent adhered fines from accumulating on the screen surface.
The core advantages of the bouncing ball self‑cleaning system:
Continuous blinding prevention – reduced stoppages. The bouncing balls work continuously during screening – material passes through while blockages are cleared simultaneously. The most feared problem in sugar screening is the vicious cycle of "clean after blinding, then blind again" – the bouncing ball self‑cleaning system breaks this cycle, eliminating the need for frequent manual cleaning and allowing the equipment to run continuously for extended periods.
Food‑grade material – safe and contamination‑free. The bouncing balls are made of food‑grade silicone – with good elasticity and wear resistance – complying with food contact material standards. Unlike ordinary rubber balls, silicone balls do not generate debris from wear that could contaminate the material – protecting sugar purity.
Consistent and stable cleaning performance. The bouncing balls work continuously with equipment vibration – unaffected by operator skill – providing stable and reliable cleaning. Combined with the equipment's gentle three‑dimensional spiral vibration, the bouncing balls and material motion create a synergistic effect for even better cleaning performance.
In addition to the standard bouncing ball self‑cleaning system, Gaofu's sugar rotary vibrating sieve incorporates multiple anti‑blinding design features, collectively building a comprehensive barrier for sugar screening:
Food‑grade stainless steel construction – eliminating secondary contamination. All sugar‑contact parts are made of high‑quality 304 stainless steel – with polished surfaces, no dead corners, and easy cleaning – fully compliant with food‑grade hygiene standards. This fundamentally prevents heavy metal contamination, ensuring every grain of sugar is pure and safe.
Fully enclosed negative‑pressure design – moisture‑proof and dust‑proof. Sugar moisture absorption is one of the primary causes of lumping and blinding. Gaofu's sugar rotary vibrating sieve features a fully enclosed negative‑pressure design – effectively isolating external moisture and preventing secondary moisture absorption during screening. It also prevents dust emission, improving the workshop environment and reducing material loss.
Optional ultrasonic cleaning system – overcoming ultra‑fine powder blinding. For ultra‑fine sugar screening above 200 mesh, conventional bouncing ball cleaning is no longer sufficient. Gaofu's sugar rotary vibrating sieve can be optionally equipped with an ultrasonic cleaning system – using ultrasonic energy to break adhesion forces between particles, allowing ultra‑fine powder to "float" and pass through the mesh – truly solving electrostatic adhesion and fine powder blinding. The dual bouncing ball and ultrasonic cleaning solution covers the full range of anti‑blinding needs from conventional sugar to ultra‑fine sugar.
Quick screen changes – completed in 3‑5 minutes. Quick‑release clamps or flange connections allow tool‑free access – screen changes take only 3‑5 minutes. For production lines requiring frequent changes between different sugar specifications, this feature significantly reduces downtime.
In actual production, the bouncing ball self‑cleaning system of Gaofu's sugar rotary vibrating sieve delivers tangible improvements:
Significantly reduced blinding frequency. The bouncing balls continuously knock the screen – effectively relieving sugar adhesion and lump blockage – greatly reducing stoppages caused by blinding. The equipment can run continuously for extended periods without production interruptions from frequent blinding.
Consistently stable screening efficiency. The screen remains open at all times – screening efficiency does not degrade over extended operation. Material grading accuracy remains stable – screened sugar particles are uniform with consistent fineness.
Greatly reduced material loss. The fully enclosed negative‑pressure design ensures near‑zero dust emission during screening – every gram of sugar is effectively collected. For high‑value raw materials like sugar, this loss control accumulates into substantial long‑term savings.
High screening accuracy – controllable fineness. Can screen down to 500 mesh (0.028 mm) – impurities and oversize material are automatically discharged, supporting continuous operation. Screening accuracy reaches 99.56%.
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.
