Over 10,000+ customers' choice, Focus on screening industry 40+ years
In the lumpy salt crushing stage of salt production workshops, noise has long been tolerated as "normal" – but its impact is far more profound than generally recognised:
Continuous strain on operator health. Traditional hammer crushers typically generate noise levels of 80‑90 dB(A) or higher during operation due to impact and vibration. Prolonged exposure to such high decibel levels can cause irreversible damage to operators' hearing and nervous systems. Even with ear protection, the approach is "damage reduction" rather than "source elimination."
Noise masks equipment abnormality signals. When a crusher runs at persistently high noise levels, early warning signs of bearing wear, roller jamming, and other issues are often drowned out. By the time problems become apparent, equipment damage and production interruptions have already occurred.
The "invisible pressure" on the workshop environment. Continuous high noise not only affects operators' concentration but also interferes with communication and instruction delivery within the workshop. For salt production workshops requiring multi‑person coordination, noise itself is a source of efficiency loss.
The "quiet operation" of Gaofu's low‑noise salt crusher is not achieved by adding soundproof enclosures – it comes from a fundamental change in the crushing principle.
Traditional hammer crushers rely on high‑speed rotating hammers to impact the material – an impact‑based crushing method. The impact force, while crushing the material, also generates intense mechanical vibration and air turbulence – the primary sources of noise. Gaofu's low‑noise salt crusher uses a double‑roller counter‑rotating compression crushing structure – material between the two rollers is subjected to continuous, controlled compression and shear forces, rather than instantaneous, uncontrollable impact forces.
Compression crushing is essentially "fracturing" rather than "shattering." Material is slowly fractured and sheared between low‑speed rotating roller surfaces – the entire crushing process is gentle and orderly. This working method fundamentally reduces impact forces and vibration – naturally lowering noise levels. The equipment runs smoothly with low noise, completely eliminating the drawbacks of traditional crushers – bulky, complicated disassembly, and excessive noise.
Specialised noise‑reduction construction further cuts noise. Beyond the principle advantage, Gaofu's low‑noise salt crusher is also equipped with specialised noise‑reduction construction and modular split design. The fully sealed micro‑positive‑pressure structure effectively controls dust emission while also providing a degree of sound insulation. The low‑noise design directly improves the working environment.
Low noise is a prominent feature of this equipment, but far from its only one. For the actual needs of lumpy salt crushing in workshops, Gaofu's low‑noise salt crusher provides reliable performance across multiple dimensions:
Precisely adjustable discharge particle size – adaptable to different process requirements. The double‑roller gap can be precisely controlled via the adjustment mechanism – 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 without replacing any components.
Low over‑grinding rate – improved finished product yield. The equipment uses a selective crushing principle – specifically targeting oversized material for crushing, while already‑qualified particles are not re‑ground. Fines content in the finished product is significantly reduced – particles have regular shapes and uniform size, reducing raw material waste.
Non‑sticking, non‑blocking – ensuring continuous operation. To address the problem of moist and wet salt readily adhering to roller surfaces, the equipment uses differential‑speed operation – the two rollers rotate at different speeds, creating a mutual scraping self‑cleaning effect. The sieve‑free open discharge structure allows material to fall freely by gravity after being crushed by the double rollers – completely eliminating the persistent problem of sieve mesh blockage.
Corrosion‑resistant materials – capable of withstanding salt corrosion. To address salt's strong corrosive characteristics, the crushing rollers and salt‑contact components are made of wear‑resistant and corrosion‑resistant materials – capable of withstanding long‑term salt material attack, preventing equipment rusting that could generate metal particles contaminating the material.
Continuous production in salt workshops places high demands on equipment maintenance efficiency. Gaofu's low‑noise salt crusher adopts a modular split design – eliminating the drawbacks of traditional crushers that are bulky and complicated to disassemble. The entire machine has a compact structure, convenient roller gap adjustment, clear wear part replacement cycles, and well‑designed maintenance access.
The practical value of this design is: routine inspection and maintenance are more efficient, downtime is shorter, and effective equipment operating time is longer. For salt production workshops requiring 24‑hour continuous operation, this means higher equipment utilisation and more stable output.
Gaofu's low‑noise salt crusher is used in the following salt production workshop 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. Low‑noise operation improves the workshop environment – operators no longer need to work in high‑decibel noise.
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. Corrosion‑resistant materials can withstand long‑term attack from aggressive components such as magnesium chloride and calcium chloride in sea salt.
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.
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 lumpy 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.
