Over 10,000+ customers' choice, Focus on screening industry 40+ years
Food raw material grading screening typically involves the following scenarios:
Different raw materials require different mesh sizes. Granular materials such as white sugar and salt are usually screened at 20‑80 mesh; powdered materials such as flour and starch are typically screened at 80‑200 mesh; ultra‑fine powders such as milk powder and protein powder may require 200 mesh or even up to 400 mesh. A single machine needs to accommodate different mesh requirements.
The same raw material often requires multi‑stage classification. Many food raw materials need to be separated into different grades during production – coarse, medium, and fine fractions each correspond to different applications. The equipment must have multi‑stage grading capability to separate multiple particle fractions in a single feed.
Frequent product changeovers demand quick screen changes. Food processors typically handle multiple product varieties, so the equipment must support rapid screen changes to minimise downtime during changeovers.
Gaofu's SZF series linear vibrating screen uses dual vibrating motors operating in synchronised opposite directions. When the two motors mounted longitudinally on the screen body run in opposite directions, the lateral excitation forces cancel each other out, while the longitudinal forces are transmitted through the vibration‑transmitting body to the entire screen box, generating linear vibration on the screen surface.
Under the combined action of excitation force and gravity, material is thrown up on the screen surface and moves forward in a straight line in a bouncing motion. Particles smaller than the screen openings pass through to the lower layer, while oversize material travels along the screen surface to the outlet, completing the grading operation.
The "multi‑layer screen configuration" of Gaofu's SZF series food raw materials linear vibrating screen is the key differentiator from single‑deck screening equipment:
1. 1‑5 screen decks for simultaneous multi‑stage grading
The equipment supports flexible configurations of 1 to 5 screen decks, enabling a single machine to produce 2 to 6 different particle size fractions at once. Screens are arranged from coarse to fine – material passes through each deck sequentially, with coarse particles retained on the upper decks and fines passing through the lower decks. This design allows a single machine to accomplish what would otherwise require multiple units.
For food raw material processing, the upper deck intercepts large impurities and lumps, the middle decks achieve different particle size fractions, and the lower deck removes ultra‑fine powder – one machine, multiple functions, reducing material transfers between units and minimising cross‑contamination risks.
2. Wide mesh coverage for different materials
Gaofu's linear vibrating screen covers a screening particle size range of 0.074 mm to 5 mm , with mesh openings customisable according to actual requirements. From coarse granular sugar (around 20 mesh) to ultra‑fine milk powder (above 200 mesh), suitable screen configurations are available. Screening efficiency reaches over 95% , with uniform output particles and effective prevention of size mixing.
3. Quick screen changes for multi‑product production
Food processors often need to switch frequently between different product varieties. Gaofu's linear vibrating screen features a modular screen design for easy and rapid screen changes. This allows the equipment to quickly adapt to different material mesh requirements, significantly reducing downtime during product changeovers.
4. Adjustable angle to suit different material characteristics
The equipment features an adjustable excitation angle – the screen surface inclination can be adjusted according to material characteristics and grading requirements. For free‑flowing granular materials, the angle can be increased to raise throughput; for materials with high fines content, the angle can be decreased to extend the screening path and improve grading accuracy.
The main technical parameters of Gaofu's SZF series food raw materials linear vibrating screen are as follows (actual values depend on the specific model and configuration):
| Parameter | Range / Specification |
| Models available | SZF‑520 to SZF‑1540 |
| Screen size | 500×2000mm to 1500×4000mm |
| Number of screen decks | 1‑5 |
| Screening particle size | 0.074‑5mm |
| Grading efficiency | Over 95% |
| Throughput | 15‑500 t/h |
| Installed power | 0.4‑30 kW |
| Screen mesh material | Carbon steel, stainless steel (304/316L optional) |
Note: The above values are for reference. Actual throughput depends on material characteristics, screen mesh size, and other factors. Pre‑purchase evaluation with your own material and operating conditions is recommended.
Gaofu's SZF series food raw materials linear vibrating screen is suitable for grading and impurity removal of various food raw materials, including but not limited to:
Cereal flours: wheat flour, rice flour, corn flour, oat flour, etc.
Starches: corn starch, potato starch, tapioca starch, etc.
Sugars: white sugar, soft sugar, icing sugar, dextrose powder, etc.
Dairy products: milk powder, whey powder, protein powder, etc.
Seasonings: monosodium glutamate (MSG), chicken powder, pepper powder, chilli powder, etc.
Food additives: thickeners, emulsifiers, preservatives, etc.
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.
