In a modern coal mine in Germany, the EBZ200 roadheader is efficiently carrying out tunneling operations. But one afternoon on a working day, the machine suddenly "wilted". The operator found that the roadheader seemed to be bound by invisible shackles when advancing, and the speed slowed down significantly. Even if the joystick was pushed to the limit, it was difficult to reach the normal operating speed. What's more worrying is that the power of the roadheader is not as good as before. Facing the not-so-hard coal seam, the cutting head seems powerless, and there are strange noises during operation.
Maintenance personnel rushed to the scene and conducted a comprehensive inspection of the roadheader. When inspecting the hydraulic system, it was found that the pressure value was far below the standard range. Combined with the phenomena of slow advancement and insufficient power, the maintenance personnel, based on some past experience, judged that the internal wear of the hydraulic pump was serious, resulting in insufficient output flow and pressure. So they immediately decided to replace the hydraulic pump and contacted the original brand supplier to order it urgently.
Solution:
The technical team of KICAN Company has come up with a hydraulic pump solution.
After the new original brand hydraulic pump was installed, disappointingly, the fault of the roadheader did not improve at all. The foreign technical director of the coal mine was burning with anxiety. In an international mining equipment exchange group, someone recommended KICAN Company, saying that it has excellent technology and service in hydraulic pump replacement. So he contacted the International Business Department of KICAN Company by email.
After receiving the email, KICAN's technical team responded quickly and arranged professional English engineers to have online communication with the technical director. The engineers asked in detail about the usage of the EBZ200 roadheader, the specific process of the fault occurrence, the previous maintenance steps, and the model of the replaced hydraulic pump. After careful analysis and simulation tests, the technical team believed that there might be a deviation in the previous fault judgment and formulated a targeted hydraulic pump replacement scheme.
The hydraulic pump in this scheme can perfectly replace the original brand hydraulic pump, and its parameters are highly compatible with the hydraulic system of the EBZ200 roadheader: according to the actual working conditions, the displacement is set to 80, the rated pressure is 450bar, the peak pressure is 480bar, and the maximum speed is 3950rpm. The price is only 50% of the original brand, which greatly reduces the maintenance cost of the coal mine. KICAN has an integrated production chain. From the R&D and production of core components to the inspection and commissioning of finished products, all are completed in its own factory, ensuring high quality of products. Moreover, thanks to the efficient production process, its production cycle is half shorter than that of the original brand, which can quickly meet the urgent needs of customers.
After urgent discussion, the coal mine management decided to adopt KICAN's replacement scheme. Within a few days, KICAN's hydraulic pump was delivered to the coal mine by international express. During the replacement process, the technicians found that the new original brand hydraulic pump replaced before was actually intact. The real cause of the fault was that the valve core of a check valve in the hydraulic system was stuck, resulting in oil backflow. After replacing the check valve and installing KICAN's hydraulic pump, the roadheader restarted, and the advancing speed and power returned to normal instantly. It runs more smoothly than before, with much lower noise, and can easily cope with operations even in complex coal seam environments.
The foreign general manager of the coal mine wrote in the thank-you letter to KICAN: "The hydraulic pump of KICAN Company has excellent performance, far exceeding our expectations, and its price advantage has surprised us even more. Your company's professional technical support and fast delivery speed have left a deep impression on us, effectively shortening the equipment downtime and reducing huge losses for us."
Since then, the EBZ200 roadheader installed with KICAN hydraulic pump has been running stably, providing a strong guarantee for the efficient production of the coal mine. This successful cooperation has also enabled the coal mine to establish a long-term and stable foreign trade cooperative relationship with KICAN. Both parties look forward to achieving a win-win situation in future cooperation and creating more achievements in the field of engineering machinery together.
