South Korea's "super mini excavator" has been successfully localized
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On the 11th, HPTS (Hydrauics & Pneumatics) (representative director Li Yongji), an oil and air pressure specialist in the D&D Special Zone, announced that its company has developed a "small coal mining equipment (mini excavator)". From then on, Korea will have hope. Change the history of importing small excavators from technologically developed Germany and Japan.
The development project received support from the Small and Medium Business Administration for conditional purchase of new product development projects, and HPTS and Ulsan University jointly cooperated in research and development.
With the success of the development of the excavator, HPTS held an on-site demonstration experiment of the excavator in Daede District on the 29th of last month. More than 20 relevant personnel from the Korean Coal Company participated in the test. The person in charge of the company said: "Most of the equipment of China's coal companies and mining companies are dependent on imports, and most of these machines are aging, and it takes a lot of protection and maintenance costs. By watching the on-site development experiments, the head of the coal company They all expressed their satisfaction with this excavator."
The existing large-scale machinery is difficult to enter the pit, and the excavation from the upper and lower vertical directions can be carried out, but the work efficiency is not high.
The mini excavator developed this time is 0.7m wide, 3.5m long and 1.5m high. It can be rotated 90° to 180° and the traction is 2000 kg. The performance of this machine is optimized by designing simulation tests of hydraulic systems and development systems. At the same time, in order to prevent the explosion or malfunction of the machine caused by the flammable gas and dust existing in the pit, all the components used in the machine are explosion-proof and anti-corrosion treatment.
Li Yongji, president of HPTS, explained: "The majority of domestic pits are narrow tunnels with a width of 3 meters and a height of 2.4 meters. There are also a large amount of flammable gas and dust, and the operating conditions such as temperature are also very bad. At the same time, China's coal mines The average working depth per year is more than 20m. People try to avoid working in the pit. Therefore, in order to improve work efficiency, it is very important to realize the mechanization of the working equipment."
President Li also proudly said: "The excavator developed this time is very close to the driver's station, and the space left for the driver is also very sufficient, and the operation is simple, no matter anyone will learn."
The price of this mini excavator is about 100 million yuan. The company said that shortly after the development, the coal company ordered 15 excavators. HPTS' future sales target is to sell 50 to 60 excavators in China.
At the same time, the excavators developed by HPTS are widely used not only in the mining industry, but also in the construction industry, civil engineering and agriculture. 
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