Over 10,000+ customers' choice, Focus on screening industry 40+ years
The Gaofu GFBD series tumbler screen is a low‑frequency, gyratory sifter that emulates manual screening. When the equipment starts, an adjustable‑eccentricity exciter generates a non‑linear three‑dimensional motion, causing the material to spread on the screen surface in a spiral‑involute outward trajectory.
Unlike the high‑frequency vibration of traditional vibrating screens, the tumbler screen operates at a low rotational speed (120 to 360 rpm, adjustable) with a large displacement planar gyratory motion. The material rolls, stratifies and passes through the screen gently, with an acceleration approximately 4 to 5 times lower than that of traditional vibrating screens. The gentle acceleration combined with low‑speed operation keeps the material rolling on the screen surface at all times.
This design brings two direct benefits for coconut flake screening. First, the material is fully dispersed and stratified on the screen surface, so fibres do not concentrate and wrap around a single area, and oily material does not accumulate locally to form an adhesive layer. Second, the gentle motion effectively protects the particle morphology of the coconut flakes, reducing material breakage and fine powder generation caused by intense vibration. Breakage of fragile materials is effectively minimised.
Adjustable eccentricity and rotational speed. The eccentricity of the Gaofu tumbler screen can be adjusted between 25 and 40 mm, and the drive speed can be adjusted between 120 and 360 rpm. According to the oil content, moisture and fibre content of the coconut flakes, the motion parameters can be flexibly adjusted to optimise the residence time and motion trajectory of the material on the screen surface, achieving the best balance between screening accuracy and throughput.
1. Multi‑Deck Classification – One Feed, Multiple Fractions
Coconut flake products require particle sizes covering a wide range from 8 to 120 mesh. The Gaofu tumbler screen can be configured with up to five decks, simultaneously separating up to six different particle size fractions.
In a three‑deck configuration, for example: the top deck removes large fibre fragments and hard shell particles, the middle deck obtains the target‑size finished coconut flakes, and the bottom deck separates ultra‑fine powder. One machine with a single feed completes multiple steps simultaneously, reducing equipment investment and process transfer time.
2. Gentle Screening – Protecting Coconut Flake Particle Integrity
Coconut flakes are a mixture of granular and flocculent material, and the particle morphology is relatively fragile. The high‑frequency impact of traditional vibrating screens can easily break coconut flake particles, generating excessive fines and affecting the appearance and mouthfeel of the finished product.
The low‑frequency tumbling motion of the Gaofu tumbler screen imposes far less impact on coconut flake particles than traditional vibrating screens. The material rolls gently on the screen surface rather than jumping violently, effectively maintaining the original particle morphology of the coconut flakes and reducing the generation of fines. For coconut flakes, which have certain requirements for particle morphology, the gentle screening method directly affects the quality of the finished product.
3. Fully Enclosed Structure – Two Lines of Defence – Hygiene and Moisture Protection
During coconut flake screening, dust escape causes both material loss and workshop contamination. The Gaofu tumbler screen for coconut flakes has a fully enclosed structure, with screening taking place inside a sealed chamber and no dust escape. The fully enclosed design also effectively blocks external moisture, reducing the risk of secondary moisture absorption by the coconut flakes during screening.
All parts that contact the coconut flakes are made of food‑grade stainless steel, with polished surfaces, no dead corners, and easy to clean, complying with food GMP requirements.
4. Quick Screen Change – Reducing Downtime
Different coconut flake products require different particle sizes. The Gaofu tumbler screen for coconut flakes features a unique screen frame design, allowing screen changes in just 3 to 5 minutes. For production lines that need to switch product specifications frequently, the quick‑change design directly translates into higher overall line efficiency.
5. High Capacity – Supporting Large‑Scale Production
The Gaofu GFBD series tumbler screen has screen diameters ranging from 600 mm to 2600 mm (up to 3200 mm), with a single unit capable of handling 15 to 500 tonnes per hour. For coconut flake screening requirements of 300 to 800 kg/hour, the single‑unit capacity of the tumbler screen is more than sufficient, with no need for multiple units in parallel.
1. Both screening efficiency and accuracy achieved. Coconut flake processing is typically continuous flow production, requiring the screening step to maintain both high throughput and high classification accuracy. The low‑frequency tumbling motion of the tumbler screen allows the material to be fully stratified and pass through the screen thoroughly, achieving high screening accuracy. A single unit matches the line rhythm while ensuring product particle size consistency.
2. Screen blinding effectively mitigated – continuous line operation. Coconut flakes, with their high oil content and easy fibre entanglement, are a recognised "difficult‑to‑screen" material. The multiple cleaning solutions of the tumbler screen reduce the risk of screen blinding at multiple levels, allowing the equipment to run continuously for long periods without frequent stoppages for cleaning. For large‑scale production lines running 24 hours a day, this means no loss of capacity and no interruption of efficiency.
3. Improved raw material utilisation – reducing waste of oily material. Coconut flakes have significant economic value. Losses during screening directly affect production costs. The gentle tumbling motion of the tumbler screen thoroughly loosens the material, reducing the adhesion rate of oily material and improving the passage rate of acceptable material. Lumps are naturally broken apart during the tumbling motion, reducing the incidence of usable material being rejected as impurities.
4. Dual compliance – environmental regulations and food safety. Food processing enterprises face increasingly stringent requirements for workshop cleanliness. The fully enclosed structure of the tumbler screen effectively controls dust dispersion during screening, improving the workshop environment. Food‑grade stainless steel ensures the purity of coconut flakes during screening, helping enterprises present a more convincing compliance record during audits and factory inspections.
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. was originally founded in the 1980s. After more than 40 years of development, the company has become a "National Specialized and Sophisticated 'Little Giant' Enterprise", a "National Green Factory", a "National High-tech Enterprise", a "National Intellectual Property Advantage Enterprise", and the "President Unit of the Vibration Association". It also hosts the "Henan Provincial Industrial Design Center", the "Henan Provincial Engineering Technology Research Center for Intelligent Online Screening Systems", and the "Xinxiang Municipal Engineering Technology Research Center for Fine Screening". The company has been granted more than 500 invention, utility model and design patents, has received the "Science and Technology Achievement Award" issued by the Ministry of Industry and Information Technology, and has participated in drafting four "National Standards".
Gaofu's product portfolio covers several series and hundreds of varieties, including vibrating screening equipment, conveying equipment, coal crushing equipment, filtration equipment, and automated material handling systems. Its main products include vibrating screens, screening machines, vibrating sifters, rotary vibrating screens, ultrasonic vibrating screens, linear screens, air flow screens, gyratory screens, roller screens, dewatering screens, bar screens, vacuum feeders, dust-free feeding stations, ton bag feeding stations, feeding systems, automatic powder feeding systems, automatic slag discharge filters, leaf filters, clay filters, toothed roll crushers, coal crushers, and other equipment. These are widely used in many industries such as food, pharmaceuticals, chemicals, metallurgy, building materials, mining, thermal power, and environmental protection, earning the trust and praise of over 10,000 customers worldwide.
Gaofu products are not only popular in Greater China but are also exported to more than 100 countries and regions, including Russia, Canada, the United States, New Zealand, Japan, Brazil, South Africa, etc. The company adheres to its mission: "Enhance material quality and efficiency, meet customer needs", walking side by side with customers for harmonious and win-win cooperation. Today, Gaofu has become an approved supplier to many Fortune 500 companies, including CNPC, Sinopec, Sinochem Group, China Resources Group, Sinopharm Group, COFCO Group, China National Building Material Group, China Aerospace, and Jinchuan Group.
Gaofu Machinery – Global No.1 in Vibrating Screen Sales. In May 2024, Frost & Sullivan, an international authoritative advisory firm, based on its research on the global vibrating screen market and calculated according to global vibrating screen sales volume in 2023, issued a market position confirmation certificate to Gaofu Machinery.
