Over 10,000+ customers' choice, Focus on screening industry 40+ years
Spices are widely used in food processing and home cooking, placing extremely high demands on equipment material safety and hygiene standards. Ordinary carbon steel equipment, after prolonged contact with spice powders, is prone to corrosion and rust formation – rust particles contaminating the material directly affect product quality and food safety.
All material‑contact parts of Gaofu's S49 series spice rotary vibrating sieve are made of 304 food‑grade stainless steel. 304 stainless steel offers excellent corrosion resistance and oxidation resistance – effectively resisting the attack of acidic components and salts in spices, ensuring no heavy metal contamination and no rust particle contamination during screening.
The equipment surfaces are finely polished to a sanitary‑grade finish. The entire machine is integrally stamped and formed – with no welded dead corners – allowing water and sanitiser rinsing without residue. Internal surfaces are finely polished to prevent dirt accumulation and bacterial growth. Paired with food‑grade silicone seals, the fully enclosed cylindrical structure effectively reduces dust emission.
The core value of food‑grade stainless steel construction:
Safe and contamination‑free. 304 stainless steel complies with food contact metal material standards – ensuring a pure, contamination‑free screening process that fully complies with food production licensing and GMP clean production requirements.
Corrosion‑resistant and easy to clean. Stainless steel is corrosion‑resistant, high‑temperature‑resistant, rust‑proof, and easy to clean and sanitise. Smooth surfaces resist material adhesion – water, alcohol, and high‑pressure spray can all be used for rapid cleaning.
No dead corners. The weld‑free, dead‑corner‑free design prevents material residue and bacterial growth – easily meeting the strict GMP hygiene management requirements of the food industry.
Long service life, low maintenance. Stainless steel construction is robust, corrosion‑resistant, and durable – with a normal service life of 15‑20 years – significantly reducing long‑term maintenance costs.
Gaofu's S49 series 304 stainless steel spice rotary vibrating sieve (also called a three‑dimensional vibrating screen) uses a vertical vibration motor as the excitation source. Eccentric weights installed at the top and bottom of the motor convert rotary motion into a three‑dimensional compound motion (horizontal, vertical, and inclined), which is transmitted to the screen surface. Material moves on the screen surface in a spiral outward trajectory – from the centre toward the periphery – ensuring both high screening accuracy and considerable throughput.
By adjusting the phase angle of the upper and lower eccentric weights, the material's movement trajectory and residence time on the screen can be flexibly changed to suit different spice materials such as Sichuan pepper powder, cumin powder, chilli powder, and five‑spice powder.
Material enters through the central feed port and, under the three‑dimensional vibration force, spreads outward on the screen surface in a spiral path. Fine powder and on‑spec spice particles pass through the screen into the lower hopper, while coarse particles, lumps, and foreign matter are automatically discharged along the screen surface from the reject outlet – achieving raw material de‑dusting and finished product grading in one step.
The equipment supports flexible configurations of 1 to 5 screen decks , enabling a single machine to complete 2 to 6 grades of separation or filtration simultaneously. For Sichuan pepper, cumin, and other spice screening, the upper deck intercepts lumps and coarse particles, the middle decks achieve fine grading, and the lower deck acts as a safety screen to ensure finished product purity – one feed completes multiple steps.
Screening accuracy reaches up to 600 mesh (0.02 mm) and filtration precision down to 5 microns. For typical spice screening requirements (usually 20‑120 mesh), this accuracy capability provides ample margin, ensuring consistent finished product fineness. Grading accuracy reaches over 95%.
1. Overcoming blinding – ensuring continuous production
Spices contain a high proportion of fines, which tend to block the screen mesh during screening, causing frequent stoppages for cleaning and severely affecting production efficiency. Gaofu's 304 stainless steel spice rotary vibrating sieve incorporates several targeted optimisations to address this industry pain point:
Bouncing ball cleaning system: Bouncing balls installed below the screen continuously strike the screen surface through vibration, enabling smooth material passage and effectively solving blinding.
Ultrasonic cleaning system (optional): For ultra‑fine powders or electrostatic materials, an ultrasonic cleaning system can be optionally added – high‑frequency vibration keeps fine powder in a "suspended" state on the screen surface, effectively inhibiting adhesion and blinding.
Anti‑blinding structural design: The screen tensioning structure ensures a flat screen surface, minimising material accumulation dead zones and reducing blinding from the design perspective.
2. Flexible lump breaking – ensuring finished product quality
Powdered seasonings tend to absorb moisture and form lumps during storage. Conventional screening cannot effectively break these lumps, leading to uneven mixing. Gaofu's 304 stainless steel spice rotary vibrating sieve incorporates a flexible de‑agglomeration device that gently breaks lumps during screening without causing excessive breakage of brittle materials – improving screening efficiency while better preserving the original characteristics of the product. After lumps are broken into individual particles, they enter the screening zone for grading – fundamentally eliminating the impact of lumps on screening efficiency and finished product quality.
3. Effective impurity removal – ensuring product purity
Microscopic foreign matter and packaging debris in raw materials are difficult to eliminate completely, affecting product purity and safety. Gaofu's 304 stainless steel spice rotary vibrating sieve thoroughly disperses material through three‑dimensional rotary vibration, combined with precise interception by multi‑deck screens – effectively separating fibres, lumps, foreign matter, and impurities – ensuring smooth downstream operations.
4. Quick screen changes – suitable for multi‑product production
Seasoning producers typically handle multiple product varieties – Sichuan pepper powder, cumin powder, chilli powder, five‑spice powder, and more – and screen change efficiency directly affects production rhythm. Gaofu's 304 stainless steel spice rotary vibrating sieve features a unique separate mother‑screen / fine‑screen design – the mother screen fully supports the working fine screen, effectively extending fine screen service life. Screen changes take only 3‑5 minutes – significantly reducing changeover downtime and improving equipment utilisation.
Dust emission during spice screening not only causes raw material waste but also pollutes the workshop environment and endangers operator health. Gaofu's S49 series 304 stainless steel spice rotary vibrating sieve features a fully enclosed structure with a clamp‑type sealed dust‑proof design. From the feed inlet to each discharge outlet, all connections are sealed – completely eliminating dust leakage during production.
The practical value of the fully enclosed structure:
No dust emission. The equipment features a fully enclosed design that effectively prevents dust emission during screening, avoids material cross‑contamination, and improves the workshop environment. Operating noise is kept below 75 decibels.
Preventing cross‑contamination. The fully enclosed structure effectively prevents dust emission during screening, avoiding cross‑contamination between different spice varieties. For production lines requiring frequent changeovers between different products, this design is particularly important.
Compliant with food hygiene standards. The simple structure has no dead corners, supports quick disassembly and cleaning, meets food‑grade production hygiene requirements, and reduces cross‑contamination between batches.
Modern seasoning production lines demand high equipment stability. Gaofu's 304 stainless steel spice rotary vibrating sieve features a reinforced frame design with strong load capacity, supporting long‑duration continuous operation and effectively reducing maintenance downtime. Optimised vibration damping results in low noise and reasonable energy consumption – helping reduce long‑term operating costs.
The equipment is suitable for continuous seasoning production lines – it can operate as a standalone unit or be integrated into existing seasoning processing lines. Impurities and oversize material are automatically discharged, supporting continuous operation. The equipment has a compact footprint, saving space, and is easy to move.
Gaofu's S49 series 304 stainless steel spice rotary vibrating sieve is widely used for screening, grading, and impurity removal of various spices and seasonings, including but not limited to:
Sichuan pepper powder, cumin powder, chilli powder, pepper powder, five‑spice powder, thirteen‑spice powder, curry powder, ginger powder, star anise powder, fennel powder, garlic powder, onion powder, compound seasonings, chicken powder, monosodium glutamate (MSG), and more.
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.
