Over 10,000+ customers' choice, Focus on screening industry 40+ years
The difficulty in screening coconut flakes stems from their unique material characteristics:
High fat content – adhesion and blinding. Coconut flakes have a fat content of 40% to 60%. During screening, the fat forms a sticky film on the screen surface – fine particles are "glued" to the mesh, accumulating thicker and thicker until the openings are completely sealed. Fibre entanglement further worsens blinding – the plant fibres in coconut flakes tend to wrap around the screen wires, forming "fibre bridges" that, combined with fat adhesion, make screen blinding a constant problem.
Hygroscopic – prone to lumping. Coconut flakes have a certain degree of hygroscopicity – during storage or conveying, they readily absorb moisture from the air and form hard lumps. Once these lumps enter the screening zone, they are difficult to remove through conventional vibration and may become wedged in the mesh openings, further aggravating blinding.
High fines content – dust emission. Coconut flakes generate large quantities of fines during grinding and screening – these are lightweight and easily airborne. On traditional open screening equipment, they readily escape through equipment gaps into the workshop air – causing material loss and polluting the production environment.
Gaofu's S49 series coconut flakes rotary vibrating sieve (also called a three‑dimensional rotary vibrating sieve) 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 – spreading from the centre toward the periphery.
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 materials such as coconut flakes. This unique motion pattern gives coconut flakes ample opportunity for dispersion and tumbling on the screen surface – effectively reducing static accumulation of fines on the mesh and alleviating blinding from the motion mechanism.
Material enters through the central feed port and, under the three‑dimensional vibration force, spreads outward on the screen surface in a spiral path. Fines and on‑spec coconut flake 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 impurity removal and finished product grading in one step.
The typical coconut flakes screening process is: raw material pre‑treatment (cleaning, crushing) → coarse grinding → screening → fine grading. Among these steps, the screening stage is the critical node for removing fibre impurities, separating fines from hard lumps, and achieving particle size grading.
Screening objective: impurity removal first, grading second. The primary task of coconut flakes screening is to remove fibre lumps, hard particles, packaging debris, and other foreign matter – ensuring product purity. At the same time, through precise multi‑deck screen configurations, coconut flakes are separated by particle size into different grades to meet the particle size requirements of various applications – baking, desserts, snacks, and more.
Screening mesh: covers 8 to 120 mesh. Coconut flakes screening mesh requirements are broad – from coarse screening (8‑20 mesh) to fine screening (80‑120 mesh). Coarse screening removes large lumps and foreign matter, while medium‑to‑fine screening achieves different particle size grades to meet the diverse requirements of downstream applications.
Screening throughput: 300 to 800 kg/h. Modern coconut flakes processing lines have clear requirements for screening equipment capacity. Gaofu's S49 series rotary vibrating sieve single‑machine throughput covers this capacity range – meeting the needs of small‑to‑medium processors and large‑scale producers alike.
Gaofu's S49 series coconut flakes rotary vibrating sieve supports flexible configurations of 1 to 5 screen decks – one machine can simultaneously complete 2 to 6 grades of separation or filtration. For coconut flakes processing, a typical multi‑deck configuration is as follows:
Upper deck (coarse screen, 8‑20 mesh) – intercepting hard lumps and foreign matter. Large lumps, fibre agglomerates, packaging debris, and other foreign matter are effectively intercepted by the upper deck – protecting material purity at the source. This deck acts as the "gatekeeper," protecting lower decks from large material impact.
Middle decks (grading screens, 20‑80 mesh) – achieving particle size grading. This is the core of multi‑deck grading. By setting screens of different mesh sizes (e.g., 20 mesh, 40 mesh, 60 mesh, 80 mesh), coconut flakes are precisely separated by particle size into different specifications – coarse particles for fillings and decoration, medium‑fine particles for baking and confectionery, and ultra‑fine powder for premium desserts and beverages.
Lower deck (safety screen) – ensuring finished product purity. As the final checkpoint, it further intercepts fine impurities – ensuring reliable purity of coconut flakes entering the packaging stage.
The value of "one feed, multiple outputs":
Combined processes, reduced material transfer. In traditional modes, different specification grading often requires multiple machines or multiple screening passes – material transfer between machines increases contamination risk. Gaofu's rotary vibrating sieve combines multiple processes into a single machine – reducing material exposure and cross‑contamination opportunities.
One machine, multiple functions – flexible adaptation to different needs. When switching between different fineness specifications, simply adjust or change the corresponding screen decks – no need to replace the entire machine.
High grading accuracy – eliminating size mixing and cross‑contamination. The precise multi‑deck grading ensures purity of each particle size grade – screened coconut flakes are uniform in size, effectively preventing mixing between different specifications.
The most common challenge in coconut flakes screening is blinding – fine particles blocking the mesh cause screening efficiency to drop, and grading accuracy fluctuates accordingly. Gaofu's S49 series coconut flakes rotary vibrating sieve provides systematic solutions across multiple levels:
Bouncing ball cleaning system – continuous knocking, real‑time blinding prevention. Food‑grade silicone bouncing balls are installed below the screen – during operation, they continuously knock against the screen, dislodging fine powder adhering to the screen and particles wedged in the mesh. This "screening‑while‑cleaning" design keeps the screen fully permeable throughout the screening process – effectively relieving the adhesion and blinding problems of high‑fat coconut flakes.
Ultrasonic cleaning system (optional) – overcoming ultra‑fine powder blinding. For ultra‑fine coconut flakes powder (e.g., above 100 mesh), conventional bouncing ball cleaning has limited effectiveness. Gaofu's rotary vibrating sieve can be optionally equipped with an ultrasonic cleaning system – high‑frequency vibration keeps fine powder in a "suspended" state on the screen surface, effectively inhibiting adhesion and blinding.
Anti‑blinding structural design – reducing blinding from the design perspective. The screen tensioning structure ensures a flat screen surface, minimising material accumulation dead zones. Combined with an adjustable excitation angle design, vibration parameters are optimised – enhancing material jumping intensity and flowability on the screen surface, further reducing blinding risk.
Fully enclosed structure – solving dust emission problems. The equipment features a fully enclosed structure – fundamentally solving the dust emission problem of traditional screening processes and creating a clean production environment. For materials with high fines content and easy airborne dispersion like coconut flakes, this design improves the workshop environment while reducing material loss.
In actual coconut flakes screening operations, Gaofu's S49 series rotary vibrating sieve has demonstrated proven results:
Significantly improved product quality. By effectively removing hard lumps, fines, and foreign matter from coconut flakes, finished product purity and particle size uniformity are ensured. Customer feedback shows product qualification rate increased from 85% to over 95% , with annual returns loss reduced by RMB 120,000.
Notably increased production efficiency. The anti‑blinding design and automatic slag discharge enable continuous operation without frequent stoppages. Throughput increased from 180 kg/h to 350 kg/h – an improvement of over 90%.
Effective control of raw material loss. The fully enclosed structure reduces material spillage and waste during screening – annual raw material waste reduced by RMB 100,000 (based on 30 kg/day at RMB 10,000/tonne).
Supports 24‑hour continuous production. The equipment operates stably – supporting long‑duration continuous operation to meet high‑volume production needs while reducing environmental pollution.
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.
