Grader is the main machinery used for shaping and leveling in earthwork, which is widely used in large-scale ground leveling operations such as roads and airports. The reason why the grader has extensive auxiliary operation ability is that its scraper can complete 6-degree motion in space. They can be carried out individually or in combination.
Grader can provide sufficient strength and stability for subgrade construction. Its main methods in subgrade construction include leveling operation, slope brushing operation and embankment filling. Grader is a kind of high-speed, high-efficiency, high-precision and multi-purpose earth-moving machinery. It can complete large-scale ground leveling, ditching, slope scraping, earth pushing, snow removal, soil loosening, compaction, cloth distribution, mixing, loading assistance and land reclamation for roads and farmland.
Origin and development of grader
The original grader can be traced back to the United States at the end of 19. Since the 1920s, in the development process of nearly 80 years, graders have experienced the development process from low speed to high speed, from small to large, from mechanical control to hydraulic control, from mechanical shift to power shift, from mechanical steering to hydraulic power steering to full hydraulic steering, and from full hydraulic frame to shovel frame.
The reliability, durability, safety and comfort of the whole machine have been greatly improved. With the development of science and technology, the development and application of machinery manufacturing and hydraulic technology. With their combined application in construction machinery products, high-tech represented by modern microelectronics technology is more and more widely used to transform the traditional structure of construction machinery products.