Over 10,000+ customers' choice, Focus on screening industry 40+ years
Pet feed (especially extruded dry kibble) has strict requirements for pellet specifications – the screening stage must address two critical issues:
1. Removing impurities and off‑spec products. Removing stones, twine, metal filings from raw materials, as well as broken pellets and powder generated during production – ensuring a clean, uniform finished product appearance. Gaofu's rotary vibrating sieve achieves an impurity removal rate of over 99%.
2. Precise grading. Different pet sizes and life stages require different pellet sizes. Multi‑deck screening can separate material into multiple specifications in a single pass (e.g., puppy food, adult dog food, large‑breed dog food) – meeting diverse market demands.
1. Multi‑deck grading design – multiple specifications from one machine
Gaofu's vibrating sieve can be configured with 1 to 5 screen decks , simultaneously producing multiple particle size fractions. Whether removing oversized particles or screening out fine powder and debris, precise control is achieved by selecting the appropriate mesh size – ensuring uniform and stable finished pellets.
Grading fineness: covers 10 to 400 mesh;
Classification efficiency: reaches 90% to 98%;
Screen decks: 1 to 5 flexible configurations.
2. Food‑grade 304 stainless steel – hygiene and safety assured
The equipment is constructed of 304 stainless steel , complying with pet food safety production standards. The mirror‑polished surface makes it easy to clean and resistant to residue – safeguarding the clean quality of every batch of pet food.
3. Fully enclosed structure – protecting the clean production environment
To meet the strict hygiene requirements of pet food, the equipment features a fully enclosed structure – dust does not escape during screening, effectively preventing external contamination. A negative‑pressure extraction system can also be configured to further optimise the workshop environment.
4. Gentle vibration – preserving pellet integrity
The rotary vibrating sieve uses a three‑dimensional vibration principle with adjustable vibration intensity – effectively preventing feed pellet breakage or fragmentation during screening, preserving the good appearance and complete structure of every kibble. Equipment operating noise is ≤65 dB.
5. Easy maintenance – reducing operating costs
The equipment features a unique screen mounting structure – screen changes are quick (typically completed in 3‑5 minutes), reducing downtime. The vibrating motor, as the excitation source, runs stably with low energy consumption and low maintenance frequency.
| Parameter | Specification |
| Model | S49 series (φ600‑φ2000 mm) |
| Screen decks | 1‑5 (customisable) |
| Grading fineness | 10‑400 mesh |
| Classification efficiency | 90%‑98% |
| Throughput | 0.1‑20 t/h |
| Installed power | 0.75‑15 kW |
| Screen material | Carbon steel/stainless steel 304/316 |
| Screening accuracy | Up to 600 mesh (0.02 mm) |
Note: The above values are for reference. Actual throughput depends on material characteristics, screen mesh size, and other factors.
Gaofu's S49 series pet feed rotary vibrating sieve is widely applicable in the following scenarios:
Pet dry kibble production lines: Finished product grading of extruded pellets – removing broken particles and dust;
Pet treat processing: Grading and screening of freeze‑dried meat pieces and jerky;
Pet food raw material pre‑treatment: Initial cleaning of corn, soybean meal, meat and bone meal, and other raw materials;
Pet nutritional additives: In‑process screening of ultra‑fine powdered additives.
Pet feed raw materials come in many forms – meat meal, grains, tubers, freeze‑dried meat pieces, and more – with different moisture content, oiliness, and particle characteristics:
For materials prone to blinding: A screen cleaning device can be configured to effectively prevent mesh blockage
For ultra‑fine powders (such as pet food additives and flavourings): An ultrasonic vibrating screen can be used – ultrasonic vibration waves inhibit powder agglomeration and improve screening efficiency
Gaofu Machinery provides one‑on‑one technical consultation and customised equipment solutions based on customers' material characteristics and production capacity requirements.
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.
