Over 10,000+ customers' choice, Focus on screening industry 40+ years
Coconut oil occupies a unique position in the edible oil market. From premium virgin coconut oil to refined coconut oil used in food processing, the purity and clarity of the oil directly determine product quality, shelf life and consumer acceptance.
However, coconut oil filtration presents a persistent challenge for processors.
Coconut oil contains natural impurities that must be removed during refining – fibre fragments, insoluble proteins, carbonised particles, gums and phospholipids. These impurities not only affect the appearance and clarity of the oil but also impact its oxidative stability and flavour. More critically, coconut oil is a food product consumed directly, so any equipment that contacts the oil must meet strict hygiene standards.
The challenge is twofold: the filtration equipment must effectively remove impurities while ensuring that no residue remains on the equipment surfaces between batches. Residual oil or particles left on the equipment will oxidise, become rancid, and contaminate the next batch – directly affecting product quality and food safety.
This is where the surface finish of the equipment becomes a critical factor. A rough or poorly finished surface provides countless microscopic crevices where oil and particles can hide. A mirror‑polished surface, by contrast, leaves nowhere for residues to cling.
The Gaofu mirror‑polished coconut oil rotary vibrating sieve is a specialised machine designed specifically for this requirement. With its food‑grade stainless steel construction, mirror‑polished surfaces, fully enclosed design and efficient screening capability, it provides a professional solution for coconut oil filtration that is both clean and reliable.
The most distinctive feature of the Gaofu coconut oil rotary vibrating sieve is its mirror‑polished surface finish.
All material‑contact parts are made of 304/316L food‑grade stainless steel, with surfaces mirror‑polished to a finish of Ra ≤ 0.4μm. This is not merely a cosmetic treatment – it is a functional requirement for edible oil processing.
What does a mirror‑polished surface achieve in practice?
First, it prevents material adhesion. The smooth, dense surface gives oil and particles nowhere to grip. Coconut oil, which has a certain viscosity, will flow off a mirror‑polished surface rather than clinging to it. Fibre fragments and other solid impurities are less likely to adhere to the screen frame or internal surfaces. This means less material residue after each batch and less effort required for cleaning.
Second, it eliminates hygiene dead corners. The mirror‑polished surfaces are combined with a dead‑corner‑free design – all corners are rounded, all welds are ground smooth, and there are no crevices where material can accumulate. For coconut oil processing, this is essential. Any residue left in a dead corner will oxidise and become rancid, contaminating subsequent batches. The mirror‑polished, dead‑corner‑free design ensures that every surface can be thoroughly cleaned and inspected.
Third, it meets food safety standards. The mirror‑polished stainless steel construction complies with GB 4806.9 food contact material standards and food GMP requirements. It does not release harmful substances into the oil, and it resists corrosion from the fatty acids present in coconut oil.
The result is equipment that is easy to clean, residue‑free, and safe for edible oil processing.
Coconut oil is susceptible to oxidation when exposed to air. Oxygen can cause the oil to become rancid, developing off‑flavours and reducing shelf life. Traditional open filtration equipment allows oil to come into contact with air, accelerating oxidation. It also permits dust, moisture and other contaminants to enter the system.
The Gaofu coconut oil rotary vibrating sieve features a fully enclosed sealed structure. The entire filtration process – from feed to discharge – takes place inside a sealed chamber. Oil does not come into contact with the workshop atmosphere, and external contaminants cannot enter the system.
This fully enclosed design provides three essential safeguards for coconut oil processing:
1. Prevents oxidation. By isolating the oil from air, the sealed structure significantly reduces the rate of oxidation. The oil retains its natural flavour, nutritional value and shelf life.
2. Prevents contamination. Dust, insects, moisture and other foreign matter cannot enter the system. The oil remains pure from filtration to the next processing step.
3. Contains oil and odours. The sealed structure prevents oil from splashing or leaking, and contains the odours associated with oil processing – improving the workshop environment and reducing material loss.
The equipment uses food‑grade silicone seals at all connection points, ensuring a tight seal that remains effective even during continuous operation.
Beyond surface finish and sealing, the Gaofu coconut oil rotary vibrating sieve delivers efficient filtration performance.
The equipment operates on the three‑dimensional gyratory motion principle. A vertical vibration motor with eccentric weights at both ends converts rotational motion into compound vibration in horizontal, vertical and tilting directions. This three‑dimensional motion is transmitted to the screen deck, causing the liquid to move in a spiral outward trajectory.
For coconut oil filtration, this motion offers three key advantages:
First, rapid passage of oil through the screen. The three‑dimensional motion keeps the oil in a fluidised state, preventing the decline in filtration efficiency caused by oil accumulation.
Second, effective impurity removal. Solid impurities – fibre fragments, carbonised particles, gums and other contaminants – are retained on the screen surface and automatically discharged. The equipment can achieve filtration precision down to 5 microns, effectively removing particles that would otherwise affect oil clarity and quality.
Third, continuous operation. Impurities are automatically discharged without manual intervention. The equipment can run continuously, supporting the production rhythm of large‑scale oil processing lines.
The equipment supports 1 to 5 screen decks, enabling simultaneous separation into 2 to 6 grades. This flexibility allows coconut oil processors to achieve the specific filtration requirements for different oil products – from virgin coconut oil to refined oil.
In edible oil processing, batch changes require thorough cleaning of the equipment. Residual oil from one batch must not contaminate the next. The Gaofu coconut oil rotary vibrating sieve is designed for fast and thorough cleaning.
The equipment features a quick‑release screen structure, allowing screen changes in just 3 to 5 minutes. The mother screen provides structural support, while the fine screen (working screen) performs the filtration. When a different mesh size is needed or the screen needs cleaning, only the fine screen needs to be removed – the mother screen remains in place.
This design offers two practical benefits: shorter cleaning time between batches, reducing downtime; and thorough cleaning – every component can be removed and cleaned individually.
All internal surfaces are accessible for cleaning. The mirror‑polished finish means that oil and residue do not adhere, so cleaning is faster and more effective. The equipment supports CIP (clean‑in‑place) cleaning protocols, allowing operators to clean the system without complete disassembly.
From the perspective of actual production conditions in coconut oil processing, the Gaofu mirror‑polished coconut oil rotary vibrating sieve delivers value in four dimensions:
Hygiene value – Mirror‑polished 304/316L stainless steel and dead‑corner‑free design make the equipment easy to clean with no oil or particle residue. The fully enclosed structure prevents oxidation and contamination. This helps enterprises meet the hygiene requirements of food GMP and HACCP systems.
Quality value – Impurities such as fibre fragments, carbonised particles, gums and phospholipids are effectively removed. The oil is clear, bright and stable, meeting national edible oil quality standards and consumer expectations for premium coconut oil products.
Efficiency value – The equipment can run continuously with automatic discharge of impurities. Quick‑release screen design reduces downtime for cleaning and screen changes. The overall capacity of the production line is fully utilised.
Compliance value – Food‑grade stainless steel, mirror‑polished surfaces and fully enclosed structure ensure that the equipment complies with GB 4806.9 food contact material standards and food GMP requirements. This helps enterprises present a convincing compliance record during food safety audits and customer factory inspections.
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.
