Over 10,000+ customers' choice, Focus on screening industry 40+ years
Bulk raw material pre‑treatment on salt production lines faces challenges far beyond simply "breaking up large lumps":
Throughput must keep up with production line rhythm. Modern salt plants process hundreds of tonnes or more per day. If the crushing equipment's capacity cannot keep up, upstream crystallisation and drying processes will experience material accumulation, while downstream washing and screening processes will idle. For salt plants pursuing large‑scale, continuous production, the capacity of the crushing stage directly determines the upper limit of the entire production line.
Over‑grinding directly affects profitability. Traditional hammer crushers rely on high‑speed impact for crushing – the impact force is uncontrollable, causing a significant proportion of salt particles to be over‑crushed into fines. These fines cannot be sold as合格 product and add burden to downstream screening and dust collection systems. For salt plants, every tonne of salt reduced to powder represents direct economic loss.
Salt material corrosion and adhesion. Salt is highly hygroscopic and moderately corrosive. Wet salt readily adheres to equipment surfaces during crushing, causing blockage and downtime. 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 high throughput capability of Gaofu's high‑capacity salt crusher comes from the synergy of two core technical designs:
Integrated "screening + crushing" releases effective capacity. In traditional crushing processes, all material – regardless of size – enters the crushing chamber, causing large already‑qualified material to be repeatedly ground, wasting capacity. Gaofu's salt crusher features an integrated "screening‑crushing" design – material entering the machine first passes through a pre‑screening area where qualified fines are separated and discharged directly; the remaining coarse material falls between the two rollers for crushing; crushed material then falls back to the screening area – material meeting the particle size requirement is quickly discharged, while material not meeting the requirement returns to the crushing zone for further processing.
This design achieves simultaneous "screening‑while‑crushing" operation. Qualified material is discharged promptly, freeing up effective capacity in the crushing zone and avoiding the wasted effort of "repeatedly crushing qualified material." This fundamentally achieves the precise control of "crushing the large, leaving the small."
Double‑roller compression + shearing – gentle and efficient 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. Unlike the "impact" method of traditional hammer crushers, Gaofu's salt crusher uses a combined "squeeze + split" crushing force – material undergoes controlled fracturing between the rollers, rather than uncontrollable impact. Discharge particle size is uniform, and the over‑grinding rate can be effectively controlled at low levels.
Among similar roller crusher equipment, Gaofu's salt crusher achieves relatively high continuous throughput through optimised roller speed and screen angle. Taking the Gaofu GF2PGC‑50 model as an example, with feed particle size ≤300 mm, output can reach 30‑60 t/h , with finished product fineness ≤30 mm.
Precisely adjustable discharge particle size. The double‑roller gap can be quickly adjusted via handwheel or hydraulic mechanism – operators can precisely control discharge particle size according to the requirements of subsequent washing, screening, or dissolution processes. Salt plants can arbitrarily adjust and control crushing particle size within a range without replacing any components.
Low over‑grinding rate – improved yield. The equipment uses a "selective crushing" principle – specifically targeting oversized material for crushing. Already‑qualified material is discharged directly without re‑grinding. For salt producers pursuing high yield, this means more qualified product from each tonne of raw material – directly improving profitability.
Non‑sticking, non‑blocking – ensuring continuous operation. Salt materials are hygroscopic and corrosive – traditional crushing equipment often struggles with wet and moist salt. Gaofu's salt crusher features anti‑adhesion textures and self‑cleaning structures on the roller surfaces – combined with the appropriate speed differential – effectively reducing the accumulation and blockage of wet, sticky material on the roller bodies and reducing manual cleaning frequency. The differential‑speed rollers have a mutual scraping effect – with low sensitivity to material moisture and clay content, without affecting crushing effectiveness or efficiency.
Corrosion‑resistant materials – capable of withstanding salt corrosion. To address the hygroscopic and highly corrosive nature of industrial salt, Gaofu's salt crusher uses wear‑resistant and corrosion‑resistant materials for the roller surfaces and salt‑contact components. These materials can withstand long‑term salt material attack, preventing equipment rusting that could generate metal particles contaminating the material – ensuring stable equipment operation and product purity.
Intelligent safety control system. The equipment is equipped with an intelligent monitoring system that senses operating status in real time (current, temperature, vibration). It features overload protection and automatic reverse obstacle clearance – when foreign objects or momentary overload are detected, the equipment automatically reverses for a few seconds to discharge the obstruction, then resumes forward rotation. It alerts operators and takes protective measures when abnormalities are detected – improving operational safety.
Stable operation with low noise. Dual‑roller synchronous drive technology ensures balanced distribution of crushing force – low vibration and low noise. Low‑speed squeeze crushing mode ensures smooth operation with reasonable energy consumption.
Gaofu's high‑capacity salt crusher is used in the following salt plant bulk raw material pre‑treatment 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. Sea salt particles are larger and irregularly shaped – the double‑roller compression crushing method effectively processes them with minimal over‑grinding and uniform particle size. Sea salt contains aggressive corrosive components such as magnesium chloride and calcium chloride – corrosion‑resistant materials can withstand long‑term attack.
Fine crushing of refined salt raw materials. Further reducing coarse salt to provide uniformly sized raw material for subsequent refined salt processing. Low over‑grinding rate protects the yield of the target particle size fraction – finished particles have high regularity.
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 to achieve continuous operation from bulk raw material 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.
