Advanced Machinery Manufacture Co., Limited specializes in the research and development, manufacturing, sales, and installation of mining machinery and equipment. With over 20 years of development, we leverage a team of experienced and skilled professionals to deliver superior quality and comprehensive service. We primarily produce a wide range of mining machinery and accessories, including vibrating screens, feeders, spiral sand washers, high-pressure grinding rollers, conveyors, sand washers, crushers, fine sand recovery machines, sand making machines (high-pressure grinding rollers), dewatering screens, and drum screens. These products are primarily used in the mining, cement, highway, high-speed rail, and metallurgical industries. We have a large team of professional installers, with over 100 personnel working on-site. We primarily install equipment for mining sites, docks, sand washing facilities, highway projects, and concrete mixing plants. We provide on-site design, installation, commissioning, product use, and service tracking. Our installations are organized in a rational layout, with smooth connections, neat arrangement, and clear structure. We minimize power and labor consumption, facilitate maintenance, and reduce production losses caused by complex failures. Whether you need a discharging solution, multi-stage processing design, or a turnkey project, you can find the ideal solution here. Our unwavering dedication has earned us the recognition and respect of our customers! We will continue to work collaboratively and innovate based on customer needs, translating our commitment to product and service quality into action, and pursuing this unwavering commitment for our employees, our customers, and society.

Regulations on the Useful Life of Mining Equipment Regulations on the useful life of mining equipment are primarily determined by the relevant provisions of the “Implementation Regulations of the Enterprise Income Tax Law of the People’s Republic of China.” Specifically: 1. Explicit Depreciation Periods for Mining Equipment: According to Article 60 of the “Implementation Regulations of the Enterprise Income Tax Law of the People’s Republic of China,” unless otherwise prescribed by the financial and tax authorities of the State Council, the minimum depreciation period for fixed assets, including aircraft, trains, ships, machinery, and other production equipment, is 10 years. As a type of production equipment, mining equipment generally follows this depreciation period, which is 10 years. 2. Depreciation Calculation Method and Starting Time: Depreciation of fixed assets calculated using the straight-line method is deductible. Enterprises should calculate depreciation starting from the month following the month in which the fixed asset is placed in service; for fixed assets that cease to be used, depreciation should cease from the month following the month in which they cease to be used. This means that depreciation of mining equipment begins from the month following the month in which it is placed in service and continues until the end of its useful life or when it ceases to be used. 3. Requirements for Fixed Asset Depreciation: Enterprises should reasonably determine the estimated net residual value of fixed assets based on the nature and usage of the fixed assets. Once determined, the estimated net residual value of fixed assets cannot be changed. This requirement also applies to mining equipment. When determining the depreciation period and depreciation method, enterprises should fully consider the nature, usage, and estimated net residual value of the equipment. In summary, the useful life (depreciation period) of mining equipment is generally 10 years, as clearly stipulated in Article 60 of the “Regulations for the Implementation of the Enterprise Income Tax Law of the People’s Republic of China.” When depreciating mining equipment, enterprises should strictly adhere to this regulation and reasonably determine the estimated net residual value of the equipment to ensure accurate and compliant depreciation.

The market size of smart mines will reach 67 billion yuan in 2025 Beijing News (Reporter Zhang Jianlin) The global mining industry is undergoing a profound digital revolution. Recently, Yao Huajun, former director of the Science and Technology Development Department of the Ministry of Natural Resources, said at the 2025 Mine Intelligence and Mine Technology Exchange Event hosted by the Mining Media Integration Professional Committee of the China Industry Newspaper Association that my country, as a major producer and consumer of mineral resources, has deeply integrated mineral resource development and utilization technologies with new generation information technology under the multiple forces of policy empowerment, technological breakthroughs and market drive, and smart mine construction has ushered in a historic opportunity. In April last year, my country issued the “Guiding Opinions on Deepening the Construction of Intelligent Mines and Promoting the Safety Development of Mines”, which clearly required that by 2026, the proportion of intelligent coal mine production capacity nationwide will be no less than 60%, the replacement rate of robots in dangerous positions will exceed 30%, and the number of underground workers will be reduced by more than 10%. Yao Huajun said that driven by the dual wheels of policy and market, my country’s smart mine construction has made breakthrough progress. Data shows that by September 2024, 1,642 intelligent mining faces will be built nationwide, 2,640 robots and 1,328 unmanned vehicles will be used, and 17,000 fixed positions will be unmanned; open-pit unmanned driving and underground 5G private networks have entered the “quasi-mature stage”. For example, Caojiatan Coal Mine of the State Energy Group has further improved its coal mining efficiency through the “5G+edge computing” solution. According to the “2025 Smart Mine Blue Book”, the market size of smart mines will reach 67 billion yuan in 2025 and exceed 120 billion yuan in 2035; by 2030, the total market size of smart coal mines and non-coal mines is expected to exceed 2.3 trillion yuan. “Although the current achievements in the intelligence of mines are remarkable, deep-seated contradictions are still prominent.” Yao Huajun believes that the technical adaptability is insufficient, and cutting-edge technologies such as transparent geology and digital twins are still in the climbing stage. At the same time, small and medium-sized enterprises are facing transformation difficulties. Large projects with a value of more than 5 million yuan only account for 28.1%. Due to limited funds, small and medium-sized mines focus more on hardware procurement and have weak software customization capabilities. In addition, there is a gap in operation and maintenance talents, and the supply-demand ratio of intelligent engineers is as high as 1:4.3. Some companies are facing the dilemma of “having equipment but no doctors”.

From the perspective of open-pit mine production factors, the essence of smart open-pit mines is to deeply integrate the information technology that spans two industrial revolutions with the open-pit coal industry, and through the informatization of production, safety, management, design and other work and the intelligence of mining machinery, the labor productivity of open-pit mines will be greatly improved and the overall production cost will be greatly reduced. From the perspective of systems theory, cybernetics, and information theory, smart open-pit mines are to integrate advanced information technologies and automatic control technologies such as perception, computing, communication, and control to build a complex system in which human, machine, object, environment, information and other elements are mapped to each other, interact in a timely manner, and collaborate efficiently in the process of open-pit mining, so as to achieve on-demand response, rapid iteration, and dynamic optimization of resource allocation and operation within the system. The so-called smart open-pit mine is based on the digitization of mine data, production automation, and management informatization, combined with new sensor technology, network communication technology, spatial information technology, artificial intelligence technology, etc., to achieve intelligent perception, identification, memory, analysis and calculation, judgment and decision-making, evaluation and assessment improvement of mine production and management, so as to achieve unmanned or less-manned operation of the entire mine, and realize green, safe, and efficient mines.

What are the mining equipment? Mining equipment includes prospecting equipment, mining equipment, and mineral processing equipment. Among them, mineral processing equipment can be divided into crushing equipment, grinding equipment, screening equipment, washing equipment, dehydration and drying equipment, auxiliary equipment, etc., which are briefly listed here: 1. Crushing equipment of mining equipment: Various types of crushers: jaw crusher (jaw crusher), jaw crusher (jaw crusher), hammer crusher (hammer crusher), impact crusher (impact crusher), compound crusher (compound crusher), impact crusher (impact crusher, sand making machine, sand making machine), cone crusher (cone crusher), roll crusher (roll crusher), single-stage hammer crusher, mobile crusher, etc. Auxiliary equipment: vibrating feeder, circular vibrating screen, linear vibrating screen, belt conveyor, etc. 2. Screening equipment of mining equipment: Linear vibrating screen, circular vibrating screen, high-frequency screen, finished product screen, classifier, spiral classifier, shaking table, mixer (mixer, mixing barrel), concentrator, etc. 3. Washing and sorting equipment of mining equipment: Sand washing machine (sand washing machine), magnetic separator (strong magnetic separator, wet magnetic separator, dry magnetic separator), flotation machine, mixing barrel, feeder, spiral chute, etc. 4. Dehydration and drying equipment of mining equipment: Dryer, rotary kiln, concentrator, feeder, conveyor, vibrating screen, etc. 5. Auxiliary equipment of mining equipment: Linear vibrating screen, circular vibrating screen, belt conveyor, vibrating feeder, electromagnetic vibrating feeder, bucket elevator, concentrator, trough feeder, pendulum feeder, shaking table, mixing barrel, granulator, belt conveyor, elevator, disc feeder, etc.

The specifications of medium and fine crushing spring cone crushers are expressed by the bottom diameter D of the movable cone. The working principle of medium and fine crushing cone crushers is basically similar to that of gyratory crushers, but there are still differences in structure. The main differences are: (1) The two cones of the gyratory crusher are both steeply inclined. The movable cone is an upright truncated cone, and the fixed cone is an inverted truncated cone. This is mainly to increase the feed opening. The two cones of the medium and fine crushing cone crushers are both gently inclined upright truncated cones, and there is a certain length of parallel crushing area (parallel belt) between the two cones. This is to control the product particle size. Because the design of medium and fine crushing crushers takes the quality of crushed products and production capacity as the primary factors. (2) The movable cone of the gyratory crusher is suspended on the crossbeam on the upper part of the machine, and the movable cone of the medium and fine crushing cone crusher is supported on the spherical bearing at the bottom. (3) The gyratory crusher adopts a dry dust prevention device, while the medium and fine crushing cone crushers adopt a water seal dust prevention device. Schematic diagram of cone crusher operation (4) The gyratory crusher uses the rise or fall of the movable cone to adjust the size of the discharge port, while the medium and fine crushing cone crushers adjust the height position of the fixed cone (adjusting ring) to adjust the width of the discharge port. According to the different discharge port adjustment devices and safety devices, the medium and fine crushing cone crushers are divided into spring type and hydraulic type cone crushers. The working mechanism of the spring type cone crusher consists of a movable cone with a manganese steel liner and a fixed cone. The movable cone is pressed onto the main shaft 15, and one end of the main shaft is inserted into the conical hole of the eccentric sleeve. When the eccentric sleeve rotates, it drives the movable cone to perform a swiveling motion. In order to ensure the requirement of the movable cone to perform a swiveling motion, the lower surface of the movable cone should be made into a spherical surface and supported on a spherical bearing. The entire mass of the movable cone and the main shaft is borne by the spherical bearing and the frame. The safety device of this machine is the spring installed around the frame. When non-crushed materials such as large iron blocks enter the crushing chamber, the support ring and adjustment ring supported on the spring are forced to lift up and compress the spring, thereby increasing the distance between the movable cone and the fixed cone, increasing the discharge port, discharging non-crushed materials, and avoiding damage to the machine parts. Then, under the elastic force of the spring, the support ring and adjustment ring quickly return to their original position and resume crushing. Hydraulic Cone Crusher Medium and fine crushing cone crushers are divided into three types according to the form of the crushing chamber: standard type (for medium crushing), intermediate type (for medium and fine crushing) and short head type (for fine crushing). Among them, the standard type and short head type are more widely used. Their main difference lies in the cross-sectional shape of the crushing chamber and the length of the parallel belt. The standard type has a steeper moving cone inclination and a shorter parallel belt; the short head type has a gentler moving cone inclination and a longer parallel belt, and the intermediate type is between the two.

Selecting the right mining machinery is crucial for efficiency, safety, and cost-effectiveness. Here’s a brief guide to help you make the best choice: 1.Assess Your Needs: Identify the type of mining operation (surface or underground) and the specific tasks (drilling, hauling, crushing, etc.) to determine the required equipment. 2.Consider Capacity and Efficiency: Choose machinery that matches the scale of your operation. Ensure it can handle the expected workload without compromising performance. 3.Evaluate Durability and Maintenance: Opt for equipment made from high-quality materials that can withstand harsh mining conditions. Check the availability of spare parts and maintenance requirements. 4.Safety Features: Prioritize machinery with advanced safety features to protect workers and minimize accidents. 5.Cost and ROI: Balance the initial investment with long-term benefits. Consider fuel efficiency, operational costs, and potential downtime. 6.Technology and Automation: Modern equipment with automation and advanced technology can improve precision, reduce labor costs, and enhance productivity. 7.Supplier Reputation: Choose reputable manufacturers or suppliers with a proven track record in the mining industry. By carefully evaluating these factors, you can select mining machinery that maximizes productivity and ensures a safe working environment.

Bearing is a relatively important part of the crusher. It is very important for the crusher. Long-term crushing processing will also cause the bearing wear problem of the crusher. Now let’s talk about the crusher shaft wear repair process. Regarding the crusher shaft wear problem, the on-site situation of crusher shaft wear repair: 1. Observe the on-site equipment conditions and operating environment, clean up oil and impurities, and measure relevant data; 2. Carry out surface oil treatment on the worn parts, and then grind off the surface oxide layer and high points; 3. Clean the surface to be repaired with anhydrous ethanol, dry it for use; 4. Apply SD7000 release agent to the reference position on the shaft and the position to be protected; 5. Mix the Sore carbon nanopolymer material in proportion until it is uniform and has no color difference, and then apply the material to the surface to be repaired; 6. Use the reference scraping tool to scrape the material to size along the reference on the shaft and wait for the material to solidify; 7. After the material solidifies, grind to remove excess material and reinstall the parts to complete the repair.

During the use of the crusher, it is common for the crusher to get stuck, which causes time and economic losses to customers. So how to effectively prevent the crusher from getting stuck? 1. The lubricating oil does not meet the standard. Too much, too little, dirty and deteriorated lubricating oil will affect the lubrication effect of the equipment, thereby reducing the speed of the equipment, causing the crushing effect of the equipment to decrease, and the material will accumulate in the crushing chamber and is not easy to discharge, so there is a blockage phenomenon. 2. The wear of the wearing parts causes the crushing particle size of the material to be too large. During the screening process, the material will not be discharged smoothly, which can easily cause the crusher to get blocked. 3. The feed speed is too fast and the crusher cannot break the crusher in time. If the feed is uneven and the speed is too fast during the crushing process, the material in the crushing chamber will not be discharged in time, which will cause serious blockage of the equipment. 4. The discharge port is not smooth. The crusher is generally installed at a high level, and there is a conveyor below. Some materials will fall under the conveyor. If there are more materials under the conveyor, it will seriously affect the normal discharge of the crusher. 5. The screen under the crusher is rusted, blocked, and other problems occur, resulting in slow discharge and blockage of the crusher. 6. The voltage is unstable. When the equipment is crushing, the voltage is unstable and the crusher cannot reach the normal speed, which can easily cause equipment blockage 7. The material is too large. The crushed material is too large, which causes serious wear and tear on various parts of the equipment. After a long time, blockage will occur. Once the crusher is blocked, it will affect future use and work efficiency. Therefore, when using it normally, you must pay attention to the method of use to ensure that the equipment can be used normally. In summary, when the above situation occurs, stop feeding immediately, cut off the power supply, find out the cause of the blockage, and solve it.

Vibrating feeders are a type of ore processing machinery and equipment commonly used in sand and gravel production lines in addition to crushers and sand making machines. Quanzhou Hot Wheels Machinery would like to remind you that vibrating feeders will inevitably encounter various problems in production. **Let’s talk about how to solve these problems. The vibration gap between the exciter core and the armature in the vibrating feeder is blocked. Fault phenomenon: During the use of the built-in electromagnetic feeder of the vibrating machine, the power switch of the vibrating feeder will trip. After power is re-supplied, the feeder will work with the fuse heating phenomenon, the current exceeds the standard, and the fuse will blow in a short time. Check the feeder control system, contactor suction, etc. are all normal, but the power switch still trips frequently, and the amplitude of the vibrating feeder is basically zero when it is working. Fault analysis: According to the phenomenon analysis, it is mainly due to the material entering the vibrator, causing the vibration gap of the vibrator to be blocked by it. If you open the sealing cover for inspection, you will find that the silicone rubber used for sealing is damaged. Sometimes the damage of the exciter cooling hose will also cause this problem. Vibrating feeder outer shell leakage, fault analysis: The built-in vibrating feeder sealing shell of the vibrating machine has many bolts, especially after disassembly and maintenance, it is more difficult to seal. Fault suggestion: Generally, it can be solved by tightening the bolts and adjusting the pressure at the discharge. Motor vibrating feeder Vibrator bearing damage, fault analysis: The exciter will have the phenomenon of smoking and red bearings during use. Due to the continuous impact of the eccentric block on the bearing during rotation and the poor on-site working environment, the service life of the bearing is shortened than the normal service life. Fault suggestion: It is recommended to use better quality or imported bearings to extend the service life. In addition, bearing lubrication is particularly critical. Lubrication should be strengthened or automatic lubrication devices should be added at ordinary times.