In December 1973, the first automobile manufacturing plant in Changchun developed a successful CA390 type 60 ton dump truck. The vehicle was 9.2 meters long, 4.665 meters wide, 4.3 meters high, 4.3 meters in distance, the maximum height of 8.325 meters after lifting, and 43.5 tons of the empty car. The engine was provided by the new Chongqing machinery plant.
In April 29, 1977, Xiangtan motor factory has successfully developed "Shaofeng" type SF3100 100 tons of electric wheel dump truck.
In 2008, the Hunan Electric reload 220 ton electric wheel truck.
With the artificial reference, can see the amazing amount of giant mine car. Hunan Electric 220 tons electric wheel mining vehicle, the use of 6 giant engineering tyres, the diameter of the tire up to 3.7 meters, weighing 3.6 tons, a single price of nearly 200 thousand yuan, developed by the Shandong wind group. This giant tire must be professional when loading and unloading machine.
The SF33900 type 220 ton electric wheel dump truck has been running fully in the Yimi River Mine in January 2009, overcoming the bad weather conditions of forty degrees below zero and running in three classes every day, with the best carrying capacity of 60 cars a day, with a total of more than ten thousand tons. Picture 220 tons of Hunan electric truck, and Taiyuan heavy industry developed excavator joint operations, mining of open pit coal mine.
Giant mining vehicles are widely used in coal, iron ore, copper, diamond ore mining in open pit mine. Photo for America (Bingham Canyon Mine Bingham Canyon copper), is one of the world's largest mine. Bingham copper mine located in the western suburbs of Salt Lake City in Utah in the United States 30 kilometers hautcoeur (Oquirrh) mountains. In 1863, a group of California soldiers here found here is rich in pitch camp, copper and gold, silver, platinum and other rare metals. But experts believe that here no ore mining value. In this barren mountain is "limbo", from Missouri, young Metallurgical Engineer Daniel Jacklin, proposed open pit mining. He persuaded investors, and served as president of the Utah copper mining company. Became the American mining giant. Since 1906 since the Bingham copper mining, copper production totaled more than 18 million tons, accounting for 1/3 of total production in the United states. Left a 7.3 km long, 4.5 km wide, 1200 meters deep pit giant. The ownership of the copper mine was transferred. After the world oil crisis in 1973, the Kenny Kurt Copper Resources Corp was M & A by BP and sold to Rio Tinto Group in Australia in 1989. Is expected to 2017 closed mining.
The copper mine by Bingham early steam shovel mining. Now the rotary drilling rig is drilled and the explosive is put into the ground, and the ore is crushed on the ground. Then the large electric shovel is excavated and loaded to 200-300 tons of electric wheel dump truck and transported to the grinding and flotation production line of the Copperton beneficiation plant. The produced copper molybdenum concentrate was then pumped to the Garfield (Garfield) smelter 25 kilometers away from a converter and anodizing furnace to a copper ingot of 99.5% purity. Anode electrolytic workshop copper ingot by train transported 3 miles, the production of more pure copper, and the recovery of gold and silver.
