Hygroscopic salts absorb moisture from the air. This makes them sticky and prone to clumping. A standard screen often clogs quickly under these conditions. A tumbling screen for salt from Gaofu Machinery solves this problem. It uses a gentle, orbital motion that keeps the salt moving freely. As a result, the screen stays clear and production continues without interruption.
Why hygroscopic salts clog screens
Hygroscopic salts pull water from the surrounding air. This moisture dissolves the salt surface. Then the salt becomes sticky. When this damp salt contacts screen wires, it adheres to the mesh. Other particles stick to the first layer. Within minutes, the screen blinds. Production stops. Operators must clean the mesh manually. Consequently, conventional vibrating screens struggle with hygroscopic salts.
How tumbling motion prevents clogging
A Gaofu tumbler sieve moves the screen deck in a smooth, circular pattern. The salt crystals roll and glide across the mesh. They never bounce or experience hard impact. This rolling action keeps the material bed loose and fluid. Particles do not settle into the openings. Therefore, clogging cannot start. Moreover, the continuous motion breaks up soft clumps naturally. The salt spreads into a thin, even layer. Each particle gets multiple chances to find the correct opening. As a result, the screen delivers sharp separation without blinding.
Bouncing ball cleaning for extra protection
For extremely damp or sticky salts, Gaofu can equip the tumbling screen with bouncing ball systems. Food‑grade silicone balls sit beneath the mesh. The gentle tumbling motion makes these balls bounce continuously. They strike the underside of the screen. Each impact dislodges any particle that starts to stick. This automatic cleaning requires no operator help. Therefore, the screen remains clear for entire shifts. No manual brushing is needed.
Adjustable motion for different moisture levels
Hygroscopic salts vary in moisture content. Some batches are only slightly damp. Others are very wet. A Gaofu tumbling screen lets operators adjust the motion. They can change the rotational speed, lead angle, and eccentricity. For drier salt, a faster motion boosts throughput. For very wet salt, a slower, more controlled motion keeps the material bed active. In addition, operators can adjust the feed rate. A slower feed gives the screen more time to separate difficult material. Consequently, one machine handles a wide range of hygroscopic salt conditions.
Enclosed design controls moisture exposure
Moisture causes the clogging problem in the first place. A Gaofu tumbling screen operates fully enclosed. Continuous food‑grade silicone gaskets seal the chamber. This reduces the salt's exposure to humid air during screening. Furthermore, a dust extraction port connects to a central collection system. The negative pressure helps keep the interior dry. As a result, the salt stays less sticky. The enclosed design also prevents external contaminants from entering.
Corrosion‑resistant stainless steel construction
Hygroscopic salts are often corrosive as well. Wet salt accelerates rust. Gaofu builds its tumbling screens with SUS304 or SUS316L stainless steel. All product‑contact parts have a polished, mirror‑like finish. This smooth surface resists salt adhesion and makes cleaning easier. In addition, food‑grade silicone gaskets provide a tight seal. Therefore, the machine withstands harsh salt environments for years.
Easy cleaning and maintenance
Even with excellent anti‑clogging performance, every screen needs routine cleaning. Gaofu tumbling screens feature quick‑release clamps. An operator can open the machine without tools. The lightweight screen frames lift out easily. The polished interior releases salt residues quickly. A washdown takes only minutes. Consequently, product changeovers happen fast. This reduces downtime and supports food safety programs.
Conclusion
A tumbling screen for salt from Gaofu Machinery handles hygroscopic salts without clogging. Its gentle tumbling motion, bouncing ball options, and enclosed design keep the screen clear. The corrosion‑resistant construction ensures long service life. Contact our sales engineering team today to discuss your hygroscopic salt screening needs or to arrange a material test.
Client Testimonials
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. started back in the 1980s. Over more than 40 years, it has earned certifications 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 holds accreditation for 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, and received the Science and Technology Achievement Prize issued by the Ministry of Industry and Information Technology of China. It also 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 serve 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 the company exports them 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.
