Over 10,000+ customers' choice, Focus on screening industry 40+ years
As a food product consumed directly, edible oil production places strict hygiene requirements on equipment throughout the entire process:
Materials must be corrosion‑resistant and non‑rusting. Oils contain certain levels of free fatty acids and moisture. Prolonged contact with ordinary carbon steel can easily cause corrosion, and corrosion products can contaminate the oil. All components of the filtration equipment that contact oil must be made of corrosion‑resistant, food‑grade stainless steel.
The structure must have no dead corners and be easy to clean. If dead corners exist inside the equipment, residual oil may accumulate over time, leading to microbial growth and oxidative deterioration, affecting batch‑to‑batch quality consistency. The equipment structure should facilitate easy disassembly and cleaning, eliminating material residue.
Operation must be fully enclosed and contamination‑free. If the filtration process is exposed to air, the oil may undergo oxidative rancidity, and external dust and impurities may also contaminate the oil. The equipment must have good sealing performance to isolate external contamination throughout the process.
Food‑Grade Stainless Steel: Material Assurance of Gaofu's Edible Oil Rotary Vibrating Sieve
In terms of material selection, Gaofu's S49 series edible oil rotary vibrating sieve strictly follows food production hygiene standards:
Entire machine constructed of 304/316L stainless steel. The main body and all components that contact oil are made of 304 or 316L food‑grade stainless steel. 304 stainless steel offers good corrosion resistance and oxidation resistance, capable of withstanding the attack of free fatty acids in oils; 316L stainless steel provides even better corrosion resistance and is suitable for refined oil production scenarios with higher hygiene requirements.
Mirror polishing, no dead corners. All product‑contact surfaces are finely mirror‑polished to a sanitary‑grade surface finish. Welds are smooth with no material‑trapping dead corners, effectively preventing material residue and bacterial growth, and are easy to clean and sanitise.
Food‑grade seals for fully enclosed operation. The equipment is equipped with food‑grade silicone seals and features a fully enclosed cylindrical structure. The entire filtration process is completed within a sealed system, effectively preventing oil oxidation and external contamination, and eliminating secondary contamination. The fully enclosed structure also reduces oil odours in the workshop and improves the working environment.
Traceable materials ensure quality assurance. All stainless steel materials are supplied with traceable material certificates , ensuring compliance and reliable quality from the source.
Food‑grade stainless steel is the foundation of hygienic safety, while filtration accuracy is the direct guarantee of oil purity. Gaofu's edible oil rotary vibrating sieve also delivers impressive filtration performance:
Filtration accuracy down to 0.3‑5 microns. The equipment uses specially made stainless steel composite woven screens, achieving filtration accuracy down to 0.3‑5 microns. This level of accuracy effectively captures fine impurities such as bleaching clay powder, gums, phospholipids, trace metal ions, and solid particles in the oil. The filtered oil is clear and bright, effectively ensuring that key quality indicators such as acid value and phosphorus content meet specifications.
Simultaneous decolourisation, clarification, and impurity removal. When used with adsorbent media such as activated carbon and activated bleaching clay, the equipment can simultaneously perform decolourisation, clarification, and impurity removal during filtration. The processed oil has a bright, clear colour, meeting refined oil quality standards.
Screening accuracy stable at ≥98%. Gaofu's S49 series rotary vibrating sieve achieves stable screening accuracy of over 98% and can screen down to 600 mesh (0.02 mm) . For edible oil filtration, this accuracy capability provides ample technical margin.
Key Features of Gaofu's S49 Series Edible Oil Rotary Vibrating Sieve
1. Three‑dimensional vibration for high filtration efficiency
The equipment 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). Material spreads outward on the screen surface in a spiral path, providing a long filtration path and high screen utilisation, with filtration efficiency superior to traditional static filtration equipment.
2. Automatic impurity discharge for continuous operation
During filtration, impurities and oversize material are automatically discharged without manual intervention. This allows the equipment to run continuously for extended periods, reducing capacity losses from stoppages.
3. Separate mother‑screen / fine‑screen design extends screen life
The equipment features a unique mother‑screen and fine‑screen separation design – the mother screen fully supports the working fine screen, effectively distributing impact forces and extending fine screen service life. Screen changes take only 3‑5 minutes , significantly reducing maintenance time.
4. Fully enclosed structure eliminates secondary contamination
The equipment features a fully enclosed design that isolates the oil from external air during operation. This effectively prevents oil volatilisation and loss, and prevents external impurities from entering and causing secondary contamination – complying with food clean production requirements and environmental safety standards.
5. Multiple models for different capacities
Effective screening diameters range from Φ600 mm to Φ2000 mm, with processing capacities covering 15‑500 t/h – suitable for operations ranging from small oil processing plants to large‑scale oil refining facilities.
In practical edible oil filtration, Gaofu's S49 series rotary vibrating sieve delivers tangible improvements in the following areas:
Enhanced oil purity. Micron‑level filtration accuracy effectively removes pigments, gums, phospholipids, and solid particles. The filtered oil is clear and bright, with stable and reliable quality.
Hygienic safety assurance. The entire 304/316L food‑grade stainless steel construction, mirror‑polished dead‑corner‑free surfaces, and fully enclosed operation eliminate secondary contamination risks from the equipment side, complying with national food hygiene and safety standards.
Improved production efficiency. Three‑dimensional vibration for high‑efficiency filtration and automatic impurity discharge reduce manual intervention and support continuous production.
Controllable operating costs. Stainless steel screens have a long service life, and the equipment has a normal service life of 15‑20 years, keeping long‑term operating costs under control.
When choosing a rotary vibrating sieve for edible oil production, consider the following aspects:
| Evaluation Dimension | Key Points to Consider |
| Oil type | Vegetable oils, animal oils, or specialty oils – different oils may have slightly different material and filtration accuracy requirements |
| Capacity requirements | Select the appropriate model based on your line's hourly throughput; capacity covers 15‑500 t/h |
| Filtration accuracy | Choose the appropriate screen precision based on finished oil quality standards; Gaofu's rotary vibrating sieve achieves 0.3‑5 microns |
| Material construction | Use 304 or 316L stainless steel for oil‑contact parts to meet food‑grade hygiene standards |
| Sealing requirements | Confirm that the equipment has a fully enclosed structure to prevent oil oxidation and external contamination |
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
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.
