Over 10,000+ customers' choice, Focus on screening industry 40+ years
Screening spice raw materials and finished powders presents challenges far more complex than simply "passing through a screen":
Large throughput – high equipment capacity required. Modern spice processing lines can produce several tonnes or more per hour. If screening equipment lacks sufficient capacity, it becomes a direct bottleneck for the entire production line. Gaofu's SZF series linear vibrating screen achieves single‑machine throughput of 15‑500 t/h – meeting the capacity needs of small‑to‑medium spice processors to large seasoning manufacturers.
Multiple particle specifications – clear grading requirements. Different spices such as Sichuan pepper powder, cumin powder, chilli powder, and pepper powder have different particle size requirements – coarse powder for simmering, medium‑fine powder for surface dusting, ultra‑fine powder for seasoning production. The equipment must have multi‑stage grading capability to separate mixed material into different size fractions. Gaofu's linear vibrating screen supports flexible configurations of 1 to 5 screen decks , enabling a single machine to produce 2 to 6 different particle size fractions simultaneously.
Impurities must be effectively removed. Spice raw materials may contain stones, twine, metal filings, packaging debris, and other foreign matter – if these impurities enter subsequent processes, they directly affect product quality and food safety. Screening equipment must have reliable impurity removal capability.
Long continuous operation – high equipment stability required. Spice processing typically runs 24/7 – if equipment becomes an efficiency bottleneck, the entire line's capacity is "choked" at the screening stage.
Gaofu's SZF series spice 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 stable 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.
This working principle gives the linear vibrating screen unique advantages in high‑throughput spice screening:
Material moves in a straight line on the screen surface, providing a long screening path and high screen utilisation. Unlike the spiral spreading motion of circular vibrating screens, the bouncing forward motion of the linear screen causes the material bed to be continuously turned, loosened, and stratified – impurities and fines have ample opportunity to pass through the screen. Material flows smoothly in a straight line without accumulation – throughput far exceeds that of ordinary circular screens.
Two vibrating motors work in coordination – stable and controllable excitation force. Screen inclination can be adjusted within a range of 0° to 7° – a larger inclination increases the leap span and conveying speed, raising throughput per unit time; a smaller inclination prolongs material residence time on the screen, improving fine particle passage and grading accuracy. For different types of spices, operators can flexibly adjust the inclination according to material characteristics to achieve the optimal balance between throughput and accuracy.
1. Large throughput – a single machine matches full line capacity
Gaofu's SZF series linear vibrating screen achieves single‑machine throughput of 15‑500 t/h , with screening particle size range of 0.074‑5 mm and grading efficiency of 85%‑95%. For spice processors with large daily throughput, a single linear screen matches the capacity rhythm of the entire line. The equipment can process dry, non‑sticky powders and granules with moisture content below 7%, covering a wide range of spices including Sichuan pepper powder, cumin powder, chilli powder, and pepper powder.
2. Multi‑deck grading – multiple specifications from one feed
The equipment supports flexible configurations of 1 to 5 screen decks , with mesh openings customisable according to requirements. For spice production, the upper deck intercepts large impurities and lumps, the middle decks achieve different particle size fractions, and the lower deck acts as a safety screen to ensure finished product purity – one machine, multiple functions – reducing material transfers between units. A single machine simultaneously produces 2 to 6 different particle size fractions – meeting the multi‑specification production needs of Sichuan pepper powder, cumin powder, chilli powder, and other spices.
3. High screening accuracy – eliminating size mixing and cross‑contamination
Gaofu's linear vibrating screen achieves screening accuracy of over 95% – screened particles are uniform in size with high screening accuracy. The unique screen mounting structure effectively eliminates size mixing and cross‑contamination, ensuring every batch of finished spice meets particle size specifications with consistent quality. This high‑precision grading capability is particularly important for producers requiring multiple particle size specifications – different varieties and applications have different particle size requirements – the linear screen obtains multiple specifications simultaneously through its multi‑deck configuration.
4. Fully enclosed structure – clean production
The equipment features a fully enclosed design – no dust emission during operation, automatic discharge. Good sealing effectively reduces dust emission during screening and improves the workshop environment. For spice processing, the fully enclosed design not only meets environmental production requirements but also protects workshop cleanliness and operator occupational health. The equipment can be equipped with a negative‑pressure extraction system for enhanced workshop environment.
5. Stable operation – suitable for 24‑hour continuous operation
Gaofu's linear vibrating screen has a well‑designed structure with simple maintenance, stable operation, and low failure rates. The vibration motors are optimised for low noise, low energy consumption, and long service life – ensuring 24‑hour continuous stable operation. For spice processing lines requiring 24‑hour continuous operation, equipment stability is a key factor in maintaining overall line utilisation.
6. Quick screen changes – reducing downtime
Screens use a tensioned installation structure – replacements can be made quickly without special tools. Reduced screen change time directly shortens downtime during product changeovers or screen maintenance, increasing effective equipment operating time. This feature is particularly important for producers who frequently switch between different spice varieties.
7. Flexible material options – meeting spice hygiene requirements
The entire machine is constructed of high‑quality carbon steel or 304/316 stainless steel – robust, corrosion‑resistant, and durable. All spice‑contact parts can be made of SUS304 or SUS316L stainless steel , meeting food and pharmaceutical industry hygiene standards. Internal and external surfaces are easy to clean with no dead corners.
Gaofu's SZF series spice linear vibrating screen is widely used for screening, grading, and impurity removal of various spices and seasonings, including but not limited to: Sichuan pepper powder, cumin powder, chilli powder, pepper powder, five‑spice powder, thirteen‑spice powder, curry powder, ginger powder, star anise powder, fennel powder, garlic powder, onion powder, compound seasonings, chicken powder, monosodium glutamate (MSG), and more.
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.
