Over 10,000+ customers' choice, Focus on screening industry 40+ years
Spice powders (such as Sichuan pepper powder, cumin powder, chilli powder, etc.) are typical fine powders, typically ranging from 20 to 120 mesh, with low bulk density and a high proportion of fines. In traditional open or semi‑enclosed screening equipment, dust emission mainly originates from the following areas:
Inadequate equipment sealing. In conventional screening equipment, gaps often exist at connections between the screen frame and the machine body, as well as at feed and discharge interfaces. Fine powder materials are "squeezed" through these gaps during vibration and disperse into the workshop air.
Air currents generated by material movement. During screening, material moves at high speed on the screen surface, driving surrounding air flow and creating localised air currents. Fine powder particles are carried by these air currents and escape through open sections or gaps in the equipment.
Open exposure during manual operations. Some screening equipment requires manual intervention during feeding, discharging, or cleaning – during these operations, material is exposed to the workshop environment, allowing dust to disperse naturally.
The impact of dust emission is multi‑dimensional: it not only causes direct raw material loss (spices are high‑value materials – every dust emission represents direct economic loss) but also pollutes the workshop environment, increases cleaning burdens, and poses potential respiratory health risks to operators with long‑term exposure to high‑concentration dust environments. For seasoning producers needing to pass food safety audits, inadequate dust control is often a "deduction point" during inspections.
The core design of Gaofu's enclosed spice rotary vibrating sieve lies in its fully enclosed dust‑proof structure. The equipment features a clamp‑type sealed dust‑proof top cover , with all joints fitted with food‑grade silicone seals – no exposed gaps – ensuring that powder does not escape during the entire screening process. From the feed inlet to each discharge outlet, all connections are sealed, completely eliminating dust leakage during production.
Fully enclosed screening chamber – dust has nowhere to escape. The screening process takes place in a completely enclosed chamber – from feed inlet to discharge outlet, material is isolated from workshop air throughout. Fine spice powder cannot escape from equipment gaps and must be processed within the enclosed space.
Tight seals eliminate leakage points. All connections use high‑quality seals to ensure system airtightness. Discharge ports, access doors, inspection windows, and all potential leakage points are sealed. The entire machine uses a clamp‑type sealed dust‑proof top cover with no exposed gaps.
Fully enclosed structure effectively prevents dust emission. The equipment features a fully enclosed structure that effectively prevents dust emission. From the feed inlet to each discharge outlet, all connections are sealed, completely eliminating dust leakage during production. For production scenarios with high cleanliness requirements – such as food and seasoning processing – this design is particularly critical.
Gaofu's enclosed spice rotary vibrating sieve's fully enclosed design delivers multiple practical improvements for spice processing workshops:
Significantly improved workshop environment. The fully enclosed structure effectively controls spice powder emission – workshop dust concentration is greatly reduced. Walls and equipment surfaces no longer accumulate powder frequently, cleaning cycles are significantly extended, and operator working conditions are fundamentally improved.
Greatly reduced material loss. Fine powder no longer escapes from equipment gaps – every particle of spice powder is effectively collected. Impurities and oversize material are automatically discharged from the reject outlet, while on‑spec spice powder is precisely collected from the discharge port – reducing material waste.
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 (such as Sichuan pepper powder, cumin powder, chilli powder, etc.), this design is particularly important.
Compliant with food hygiene standards. The equipment features a fully enclosed design that effectively prevents dust emission during screening, avoids material cross‑contamination, and improves the workshop environment. The simple structure has no dead corners, supports quick disassembly and cleaning, and meets food‑grade production hygiene requirements.
While the fully enclosed structure solves the dust emission problem, the core requirements of spice screening – precise grading and efficient impurity removal – must also be ensured. Gaofu's enclosed spice rotary vibrating sieve delivers excellent screening performance while maintaining enclosure:
1. Multi‑deck grading design – multiple specifications from one machine
Gaofu's enclosed spice rotary vibrating sieve supports flexible configurations of 1 to 5 screen decks , adjustable according to the production requirements of different spices such as Sichuan pepper powder, cumin powder, chilli powder, five‑spice powder, and more. The equipment can flexibly adjust screening parameters according to different product characteristics – achieving precise particle size grading and ensuring screened seasonings meet uniform specifications that align with food production quality standards. A single machine can simultaneously complete 2 to 6 grades of separation or filtration. 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.
2. High screening accuracy – precise, controllable fineness
Gaofu's rotary vibrating sieve achieves screening accuracy up to 600 mesh (0.02 mm) and filtration precision down to 5 microns. Screening accuracy reaches 99.56%. For typical spice screening requirements (usually 20‑120 mesh), this accuracy capability provides ample margin, ensuring consistent finished product fineness.
3. Overcoming blinding – ensuring continuous production
To address the common problem of fine spice powder blinding, Gaofu's enclosed spice rotary vibrating sieve incorporates several targeted optimisations:
Bouncing ball cleaning system: Continuously strikes 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.
4. Food‑grade stainless steel construction – safeguarding food safety
All material‑contact parts of Gaofu's enclosed spice rotary vibrating sieve are standardly made of 304 stainless steel (316L available on request), with finely polished surfaces meeting sanitary requirements. The equipment features a fully enclosed structure that effectively prevents dust emission during screening and avoids material cross‑contamination. The simple design has no dead corners , supports quick disassembly and cleaning, and meets food‑grade production hygiene requirements.
5. Stable operation – suitable for large‑scale production
The reinforced frame design provides strong load capacity and supports long‑duration continuous operation. Optimised vibration damping results in low noise and reasonable energy consumption. The equipment is suitable for continuous seasoning production lines – it can operate as a standalone unit or be integrated into existing seasoning processing lines.
6. Quick screen changes – easy maintenance
The unique screen frame design ensures long screen service life – screen changes take only 3‑5 minutes. For producers who frequently switch between different spice varieties, this capability significantly reduces changeover downtime and improves equipment utilisation.
Gaofu's enclosed 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, 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.
