Over 10,000+ customers' choice, Focus on screening industry 40+ years
Raw salt exits in varying forms – front‑end shaping is urgently needed. Whether sea salt, lake salt, or rock salt, raw salt after mining or crystallisation often exists in large lumps and agglomerates. These large salt lumps vary in size and irregularity. If they enter washing or screening directly, they cause equipment jamming, uneven washing, and low screening efficiency. Crushing and shaping are intended to process large salt lumps into uniformly sized particles, providing合格 raw material for downstream processes.
Traditional crushing methods cause severe over‑grinding. Hammer crushers rely on high‑speed impact for crushing – while they offer high throughput, the "impact‑based" crushing often results in extensive over‑grinding, producing far more fines than required. These fines not only reduce the yield of the target particle size fraction but also add burden to downstream screening and dust collection systems. Additionally, high‑speed impact creates irregular particle shapes – edges are rounded, surfaces become rough – affecting product appearance.
Rapid equipment corrosion and frequent maintenance. Salt is highly hygroscopic and corrosive. Ordinary carbon steel equipment rusts extremely quickly in salt environments – not only shortening equipment life but also contaminating the product with rust particles, directly affecting product quality and food safety. The hammers, liners, and other wear parts of traditional crushers wear out quickly, requiring frequent replacement and extended downtime.
The fundamental difference between Gaofu's salt crusher and traditional crushing equipment lies in the completely different mode of force application.
Counter‑rotating rollers – compression + shearing crushing. Two motors drive two sets of crushing rollers in counter‑rotating motion. Material enters the V‑shaped crushing chamber between the two rollers from the top feed opening. Through the friction and compression force of the roller surfaces, material is drawn into the crushing chamber and subjected to continuous high‑pressure compression and shearing action. When the material is crushed to less than the gap between the two rollers, it is discharged from the bottom.
The key difference is: hammer crushers make material "shatter," while Gaofu's double roller crusher makes material "fracture under pressure." The former involves uncontrollable impact, the latter involves controlled compression and shearing. Material undergoes controlled fracturing between the rollers. This difference gives Gaofu's salt crusher unique advantages when processing large salt lumps – the crushing process is gentler, more precise, effectively controls fines generation, and produces regular particle shapes.
The core value of Gaofu's salt crusher in front‑end salt processing is reflected in the following aspects:
Precise particle size control – on‑demand shaping. The gap between the two rollers determines the discharge particle size. Gaofu's salt crusher is equipped with a convenient roller gap adjustment mechanism – the crushing gap can be arbitrarily adjusted and controlled within a range. Increase the gap for coarser particles, decrease it for finer particles – whether providing coarse particles for washing or fine particles for refined salt processing, particle size control is achieved on a single machine.
Low over‑grinding rate – improved yield. Gaofu's salt crusher uses a combined "squeeze + split" crushing force – material undergoes controlled fracturing between the rollers, with the over‑grinding rate effectively controlled at low levels. The primarily cutting‑based, compression‑auxiliary crushing method generates minimal fines – fines content in the finished product is significantly reduced. For salt producers, this means more合格 product from each tonne of raw material – directly improving profitability.
Regular particle shapes – better appearance. Low‑speed static pressure crushing design provides stable control of discharge particle size – finished particles are regular in shape with minimal powder content. Regular particle shapes not only improve product appearance but also enhance salt flowability and dissolution performance. For refined salt, sea salt, and other products targeting premium markets, particle regularity directly influences market positioning and pricing.
Food‑grade stainless steel construction – salt‑corrosion‑resistant and hygienic. To address salt's strong corrosive characteristics, Gaofu's salt crusher uses SUS316L or SUS304 food‑grade stainless steel for all salt‑contact components. 316L stainless steel – with its added molybdenum content – offers excellent resistance to chloride ions. Internal surfaces are mirror‑polished – smooth, non‑sticking, reducing material residue and corrosion attachment points. Food‑grade seals ensure no heavy metal contamination during processing – meeting food‑grade production requirements. The fully enclosed structure effectively controls dust emission.
Integrated screening and crushing – streamlined process. Gaofu's salt crusher features an integrated "screening + crushing" design. Material entering the machine first passes through a screening area – qualified particles pass directly through the screen and are discharged, while only oversize material is crushed. This achieves simultaneous "screening‑while‑crushing" operation – one machine completes the "feeding‑screening‑crushing‑conveying" sequence. This design reduces dependence on separate screening equipment and intermediate conveying stages – helping salt production lines achieve more compact layouts, effectively reducing equipment investment and floor space.
Stable operation – easy maintenance. Simple structure, compact body, reliable operation. Dual‑roller synchronous drive technology ensures balanced distribution of crushing force – low vibration and low noise. Roller gap adjustment is convenient, and wear part replacement cycles are predictable. For salt production lines requiring 24‑hour continuous operation, equipment stability directly affects overall line utilisation.
Gaofu's salt crusher is used in the following salt production applications:
Coarse crushing pre‑treatment of raw salt. Crushing mined or purchased large raw salt lumps to the particle size range suitable for washing and screening processes. Discharge particle size can be flexibly controlled by adjusting the roller gap according to downstream process requirements.
Crushing sea salt particles. Suitable for crushing sea salt particles – with minimal over‑grinding and uniform particle size. Sea salt contains aggressive corrosive components such as magnesium chloride and calcium chloride – 316L stainless steel can withstand long‑term sea salt corrosion.
Fine crushing of refined salt raw materials. Further reducing coarse salt to provide uniformly sized raw material for subsequent refined salt processing. Finished particles have high regularity – no need for secondary screening and rework.
Seamless integration with salt production lines. The equipment can be paired with a vibrating feeder for uniform feeding – operating in coordination with upstream and downstream equipment on the salt production line to achieve continuous operation from large salt lump crushing to subsequent processes.
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.
