Over 10,000+ customers' choice, Focus on screening industry 40+ years
The Gaofu compact integrated fish feed filtration sieve incorporates the same technical core as the S49 series rotary vibrating sieve – the three‑dimensional vibration principle. A vertical vibration motor serves as the excitation source, with eccentric weights mounted at the upper and lower ends of the motor shaft converting rotational motion into compound vibration in horizontal, vertical and tilting directions. This compound vibration is transmitted to the screen deck, causing the material to move in an expanding spiral‑involute trajectory from the centre outwards.
For fish feed filtration, this three‑dimensional motion offers clear advantages: material continuously tumbles and loosens on the screen surface, allowing broken particles, fines and acceptable pellets to stratify naturally; the involute travel path gives every particle more opportunities to contact the screen, ensuring high filtration accuracy; and by adjusting the phase angle of the upper and lower eccentric weights, the motion trajectory and residence time can be varied to suit different feed types.
This vibration principle also gives the equipment broad versatility. Any powder, granular or slurry material – fish meal, shrimp meal, soybean meal, extruded pellets, crumbled pellets – can be processed on the same machine simply by changing the screen mesh.
"Compact" and "integrated" are the two core positioning points that distinguish this filtration sieve from larger screening equipment. The design logic can be understood from four dimensions.
Compact footprint for flexible deployment. Small‑batch feed production typically does not have the space for large screening equipment. The Gaofu compact filtration sieve has a small overall footprint, requires no complex foundation work, and can be placed flexibly anywhere on the production line. Whether in an R&D laboratory, a small feed processing workshop, or an on‑site farm processing point, it can be deployed quickly and easily.
Quick screen change for frequent changeovers. The defining feature of small‑batch production is multiple varieties, small quantities and frequent switches. The Gaofu compact filtration sieve features a quick‑change screen structure, allowing screen mesh replacement in just a few minutes. Switching from a 100‑mesh screen for eel feed to a 40‑mesh screen for shrimp feed is simple and fast, requiring no special tools and minimal downtime.
Food‑grade stainless steel for feed safety. Fish feed directly affects the food safety of aquaculture products, so equipment material quality is non‑negotiable. All material‑contact parts of the Gaofu compact filtration sieve are made of 304 food‑grade stainless steel, with finely polished surfaces, no hygiene dead corners, and easy to clean. For production lines requiring even higher cleanliness, 316L stainless steel is available.
Fully enclosed structure for dust control. Dust generated during fish feed screening causes both material loss and workshop contamination. The Gaofu compact filtration sieve has a fully enclosed sealed structure, with screening taking place inside a sealed chamber – no dust escape, no material leakage – effectively maintaining workshop cleanliness and protecting operator health.
The Gaofu compact integrated fish feed filtration sieve is suitable for the following typical scenarios:
Small‑batch production of specialty aquatic feeds. Specialty species such as eel, shrimp and soft‑shell turtle require much finer feed than ordinary freshwater fish feed. Eel larval feed needs 98% passing through 100 mesh, while shrimp feed requires that no more than 30% be retained on 40 mesh. The Gaofu compact filtration sieve meets these precision requirements through high‑mesh screen configurations, while its small‑batch capability reduces material loss during formulation changes.
Feed R&D and recipe trials. R&D departments in research institutions and feed companies often need to process only a few tens to a few hundred kilograms of samples for new formula trials. Large screening equipment is not only over‑capacity for this purpose, but also inconvenient to clean and change over. The Gaofu compact filtration sieve, with its small footprint and quick‑change screen design, precisely matches the needs of R&D applications.
On‑site farm processing. Some large‑scale farms have their own feed processing lines for on‑demand production and immediate feeding. The Gaofu compact filtration sieve can be integrated into on‑site farm processing workflows to remove impurities from raw materials and filter finished feed, ensuring the purity and particle uniformity of the feed being used.
From the perspective of actual production conditions in small‑batch aquafeed processing, the Gaofu compact integrated fish feed filtration sieve delivers value in three dimensions:
Precise matching of equipment investment to capacity needs. Large screening equipment in small‑batch production is often like "a horse pulling a cart" – high investment, high energy consumption, and low capacity utilisation. The Gaofu compact filtration sieve, with its moderate specifications and reasonable energy configuration, achieves a precise match between equipment investment and production needs, avoiding resource waste from over‑capacity.
Efficient response to product changeovers. The core challenge of small‑batch production lies in frequent product switches. The quick‑change screen design of the Gaofu compact filtration sieve reduces changeover time to just a few minutes, giving small‑batch, multi‑variety production an efficiency basis comparable to large‑capacity lines.
Stable feed quality assurance. Despite its small size, the equipment does not compromise on filtration accuracy. Three‑dimensional vibration ensures thorough screening, food‑grade stainless steel guarantees feed purity, and the fully enclosed structure controls dust escape – these three design features together ensure that quality control for small‑batch feed achieves the same standards as large‑capacity production lines.
Customer Testimonials
Sinochem Group, China Aerospace Science and Technology Corporation, China National Building Material Group, CNOOC, COFCO, Shuanghui, Yihai Kerry, Yuntianhua, China Nonferrous Metal Mining Group, China State Shipbuilding Corporation, Honjo Chemical, Shandong Yanggu Huatai Chemical, Haohua Technology, Huazhong Pharmaceutical, Union Pharmaceutical, CSPC Pharmaceutical Group, Sanjiu Pharmaceutical, North China Pharmaceutical, Jiudian Pharmaceutical, Limin Co., Ltd., Shaanxi Coal and Chemical Industry Group, Donghai Petrochemical, Feitian Petrochemical, Yanshan Petrochemical, Satellite Chemical, China Pingmei Shenma Group
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. traces its origins back to the 1980s. After more than 40 years of development, the company has become a "National Specialized, Refined, Distinctive and Innovative 'Little Giant' Enterprise", a "National Green Factory", a "National High-Tech Enterprise", a "National Intellectual Property Advantage Enterprise", as well as the "President Unit of the Vibrating Screen Association". It has also been designated as the "Henan Provincial Industrial Design Center", the "Henan Provincial Intelligent Online Screening System Engineering Technology Research Center", and the "Xinxiang Municipal Fine Screening Engineering Technology Research Center". The company has successfully applied for over 500 patents, including invention patents, utility model patents, and design patents, and has received the "Science and Technology Achievement Award issued by the Ministry of Industry and Information Technology". Gaofu has participated in the drafting and formulation of 4 "National Standards".
Gaofu's product portfolio covers multiple 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 blade filters, automatic slag-discharging filters, plate-type enclosed filters, bleaching earth filters, diatomaceous earth filters, bag filters, candle filters, titanium rod filters, and filtration systems. These products are widely used in industries such as food, pharmaceuticals, chemicals, and environmental protection, earning the trust and acclaim of over 10,000 customers worldwide.
Gaofu products are not only best-selling across Greater China but also exported to over 100 countries and regions, including Russia, Canada, the United States, New Zealand, Japan, Brazil, and South Africa. The company practices its mission of "Enhancing material quality and efficiency to meet customer needs", accompanying customers along the way toward harmonious and mutually beneficial partnerships. Gaofu has become a cooperative supplier to numerous Fortune Global 500 companies, including CNPC, Sinopec, Sinochem Group, China Resources Group, Sinopharm Group, COFCO Group, China National Building Material Group, China Aerospace Science and Technology Corporation, and Jinchuan Group.
