Compared with other trucks, the profits of the dump trucks are relatively low. Once the dump trucks are sold, there will be a direct loss of profits. Therefore, for the conversion plant, selecting a parts supplier is critical. The hydraulic lifting mechanism is an important component that influences the performance of the dump truck, in the development of the hydraulic system including hydraulic lifting cylinders . The constant optimization of the structure of the dump truck has promoted the quality of hydraulic cylinders.
Middle top dump truck
China's dump truck hydraulic lifting technology has developed to the present, mainly divided into the top of the night pressure lift cylinder and the top of the hydraulic lift cylinder . According to the investigation, the traditional dump truck users' requirements for lifting the top dump truck have changed greatly. The maximum angle of pulling mud is 55 degrees, and the length of the pulling sand stone is 42 degrees. The angle is controlled between 49 and 52 degrees, which cannot meet the needs of special users. After the user picks up the product, it is not only a kind of activity. At this time, it is impossible to adjust the lifting angle. . Because the lifting angle of the top dump is currently controlled by the maximum stroke of the cylinder, it means that the cylinders with different strokes must be ordered at different angles. The length of the dump truck is generally from 4.2 to 5.6 meters, and at least 4 must be prepared. A variety of stroke specifications can meet the needs of the fuel tank, giving users a lot of trouble in the use of materials, procurement, production organization and after-sales service.
Front top dump truck
Compared to the dump trucks in the top lift cylinders , at present, the front lift hydraulic cylinder dump truck adopts the pneumatic control limit method to lift the angle control, the whole system is mature and reliable, and the front dump truck has a low center of gravity and the vehicle is running. The advantages of stability and low pressure in the hydraulic system are increasing as the market for long-distance trucks increases. The proportion of dump trucks at the top of the truck increases. The proportion of dump trucks at the top of the entire Dong Dong dump truck market has exceeded 60%. From the digital analysis of the production and sales of dump trucks in 2007, the number of dump trucks produced by top companies accounted for more than 50% of total dump trucks, and some companies even reached 80%. This proportion is still rising.
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