Over 10,000+ customers' choice, Focus on screening industry 40+ years
Coarse salt crushing is not about making particles "as fine as possible" – it requires uniform crushing within a specific particle size range:
Discharge particle size must be precisely controllable. Different salt production stages require different particle sizes – the washing stage requires salt particles of a certain size for effective washing; subsequent refining processes have specific feed size requirements; different industrial salt applications correspond to different particle size specifications. Crushing equipment must be able to flexibly adjust discharge particle size according to process requirements.
Over‑grinding rate must be kept low. Excessive fines not only reduce合格 product yield but also increase the load on downstream screening and dust collection equipment, driving up energy consumption and operating costs. For salt producers, every tonne of salt reduced to powder represents direct economic loss.
Equipment must resist salt corrosion and prevent sticking and blockage. Salt is highly hygroscopic and moderately corrosive. Ordinary carbon steel equipment rusts rapidly in salt environments. Additionally, wet salt tends to adhere to equipment surfaces during crushing, causing blockage and downtime. Crushing equipment on salt production lines must have corrosion resistance and anti‑sticking capability.
Equipment must support long‑duration continuous operation. Salt production typically runs 24/7 – crushing equipment must operate stably for extended periods with low failure rates and long maintenance intervals.
The fundamental difference between Gaofu's double‑roller squeeze type salt double roller crusher and traditional crushing equipment lies in the completely different mode of force application.
Traditional hammer crushers rely on high‑speed rotating hammers to impact the material – an "impact‑based" crushing method. While this offers high throughput, the impact force is uncontrollable, resulting in extensive over‑grinding and excessive fines generation.
Gaofu's double‑roller squeeze type salt double roller crusher uses a completely different principle: two crushing rollers rotate in opposite directions, driven by motors. 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 double‑roller squeeze crushers make material "crack under pressure." The former involves uncontrollable impact, the latter involves controlled compression and shearing. Gaofu's double roller crusher uses a combination crushing method – not impact or striking – producing no secondary crushing. This difference gives the double‑roller squeeze crusher unique advantages for coarse salt processing – the crushing process is gentler, more precise, effectively controls fines generation, and produces regular particle shapes.
Precisely adjustable discharge particle size – adaptable to different process requirements.
Gaofu's double‑roller squeeze type salt double roller crusher is equipped with a convenient roller gap adjustment mechanism. The gap between the two rollers determines the discharge particle size – operators can precisely set the gap according to specific salt production process requirements. Increase the gap for coarser particles, decrease it for finer particles – particle size control is achieved on a single machine. Compared with traditional equipment that requires screen or hammer changes to adjust particle size, this adjustment method is more flexible and efficient.
Low over‑grinding rate – improved finished product yield.
Gaofu's double‑roller squeeze type salt double roller crusher uses a "selective crushing" principle – the two rollers form a rotating space screen that specifically targets oversized material for crushing, while already‑qualified particles are not re‑ground. In actual applications, the over‑grinding rate can be effectively controlled at low levels. Fines content in the finished product is significantly reduced – particles have good shape and concentrated particle size distribution. For salt producers, this means more合格 product from each tonne of raw material – directly improving profitability.
Combined squeeze + split crushing force – regular particle shapes.
Gaofu's double‑roller squeeze type salt double roller crusher abandons the traditional "impact" method and adopts a combined "squeeze + split" crushing force. Material between the two rollers is subjected to controlled compression and shear forces, rather than uncontrollable impact forces. This gentle crushing method generates fewer fines – finished particles have regular shapes with fewer edges and corners, reducing raw material waste and avoiding excessive dust that could affect downstream packaging, conveying, or dissolution efficiency.
Differential speed operation – self‑cleaning to prevent sticking and blockage.
To address the potential issues of salt sticking to rollers and material blockage during crushing, Gaofu's double‑roller squeeze type salt double roller crusher uses differential speed operation – the two rollers rotate at different speeds, providing mutual scraping and self‑cleaning during crushing. This design effectively prevents salt particle adhesion and accumulation on the roller surfaces, ensuring continuous and stable operation.
Corrosion‑resistant materials – adapted to salt material characteristics.
Salt is corrosive to metal equipment. The crushing rollers and salt‑contact components of Gaofu's double‑roller squeeze type salt double roller crusher are made of wear‑resistant and corrosion‑resistant materials, capable of withstanding long‑term salt material attack, ensuring stable equipment operation. The entire machine uses a modular design – simple and compact structure, small footprint, easy to install and maintain.
Stable operation – supports continuous production.
Gaofu's double‑roller squeeze type salt double roller crusher uses low‑speed squeeze crushing – low noise, minimal dust. The equipment has a simple structure with few moving parts and low failure rate. Dual‑roller drive ensures balanced energy distribution and includes overload protection. For salt production lines requiring 24‑hour continuous operation, equipment stability directly affects overall line utilisation.
Gaofu's double‑roller squeeze type salt double roller crusher is used in the following salt production applications:
Coarse crushing pre‑treatment of raw salt. Crushing mined or purchased coarse 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.
Fine crushing of refined salt raw materials. Further reducing coarse salt to provide uniformly sized raw material for subsequent refined salt processing. The equipment is suitable for crushing sea salt particles – with minimal over‑grinding and uniform particle size.
Particle size control for industrial salt. Crushing salt lumps to specific particle size specifications according to different industrial salt applications. Discharge particle size can be flexibly controlled by adjusting the roller gap to meet different process requirements.
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 coarse salt 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.
