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The main materials excavated by excavators are soil, coal, silt, and soil and rock after pre-loosening. From the development of construction machinery in recent years, the development of excavator is relatively fast, the excavator has become one of the main construction machinery. The three important parameters of excavator are operating weight (mass), engine power and bucket capacity.
The appearance of electric motor and internal combustion engine makes mini hydraulic excavator have advanced and suitable electric device, so various excavator products are born one after another. In 1899, the electric excavator appeared. After the second world war, diesel engines were also used in excavators. Mechanical excavators driven by diesel engines (or electric motors) were used instead of excavators.
With the extensive use of hydraulic technology, mini hydraulic excavator has a more scientific and applicable driving device, hydraulic driving instead of mechanical driving is a great leap in excavator technology. In 1950 the German hydraulic excavator was born. Mechanical drive hydraulic is the excavator.
The extensive application of electronic technology, especially computer technology, makes the mini hydraulic excavator have the automatic control system, and also makes the excavator develop towards the direction of high performance, automation and intelligence. The germination of mechatronics took place around 1965, while the adoption of mechatronics in the hydraulic excavators produced in mass production was around 1985, when the main purpose was to save energy. Mini hydraulic excavator electronic is the symbol of the third generation of excavator.