Current situation of rotary drilling rig in China
Rotary drilling rig industry, due to the 2003 Qinghai Tibet railway project and the Beijing Olympic project led by the market awareness increased rapidly, the market capacity expanded rapidly. The upsurge of market demand has attracted the entry of large construction machinery enterprises in China. 31, XCMG, ZOOMLION and sunward have been involved in it, and have rapidly expanded their market share. Since 2005, the domestic brand rotary drilling rig has basically replaced foreign brands. Since 2006, the sales of rotary drilling have been increasing by leaps and bounds in recent years. Especially in 2009, the domestic rotary drilling rig manufacturing enterprises as many as 30, the introduction of nearly 200 models of products, the market retains nearly 4000 units, the market competition is unprecedented fierce.
In 1994, the Zhengzhou survey machinery factory introduced the production technology of the British BSP company's attached rotary drilling machine, but none of them formed mass production. 1992 Bauer company established a representative office in Beijing China, started their business in China. And in 1995 in Tianjin set up a wholly owned subsidiary of Tianjin Bauer Machinery Engineering Co. Ltd., assembled for Bauer BG20 rotary drilling rig market Chinese.In 1998, the Sino German joint venture, Shanghai Bao Jin Jintai construction machinery Limited by Share Ltd was set up in Shanghai, and the BG15 and BG24 rotary drilling machines were assembled and assembled. In 1998, XCMG began to develop and develop RD18 rotary drilling rig independently. It was successfully manufactured in 99 years and put into mass production. In recent years, China's rotary drilling rig has achieved rapid development. Later, Beijing Jingwei Juli 31 heavy machine, etc. have also involved in rotary drilling production, production of rotary digging drilling machine manufacturers at home and abroad has nearly twenty.
Before the Second World War came first in the United States Carle Wirth rotary drilling rig, after the Second World War in Europe, 1948 Italy Microtech company first started to develop, then Italy, Germany began to develop to the 70 ~ 80s in Japan at that time, the rapid development, known as the rotary bucket pile, also called aspirin. Methods (EarthDriII), is quite common in Germany and Japan, this kind of method. In early 80s, China imported working equipment from Japan and was equipped with KH-125 crawler crane. In 1984, the Tianjin exploration machinery factory introduced the rotary drilling rig of American RDI company and digested and absorbed them. In 1987, Italy earth force Corporation (SOILMEC) products were first exhibited at the Beijing Exhibition Center. In 1988, Beijing urban construction machinery factory developed a 1.5m diameter crawler crane attachment rotary drilling rig based on the prototype of the earth force company.
