Duct mounted reverse circulation drilling rods with T/T payment term
USD $1,000 - $6,000 /Metric Ton
Min.Order:10 Metric Tons
Shijiazhuang Longxuan Trading Co., Ltd.
Duct mounted reverse circulation drilling rods
Duct mounted reverse circulation drilling rods is mainly applies in reverse circulation drilling. The high pressure air coming from air compressor passes through air tube which is inserted in single wall drill pipe, and then pours air into mud through the lower outlet of air tube to form the combination of mud and air, the proportion is lower than that of between drill pipe and wall so that the negative pressure forms. Consequently, the mud outside the drill pipe passes through lower part of drill bit to power swivel with cuttings.
Established in 1975,Our factory is subordinated to Hebei Geology and Mineral Industries Department. As the designated production enterprise, Our factory specialized in manufacturing drilling equipment and auxiliary tools. It is a member of China Mining Association, vice chairman of the Geological and Mining Equipment Branch, a member of China Geological and Equipment General Corporation, a member unit of National Water Well Drilling Rig Information Network and a designated production enterprise of the General Reserve Department of PLA. Hebei Shitan Machinery Manufacturing Co., Ltd is located in No. 788, Zhongshan Road, Shijiazhuang city and adjacent to Qingyin Highway, enjoys favorable geographical location and transportation facilities.
Our factory has well-equipped production equipment, strong technical strength, perfect detection methods, reliable product quality and advanced management concept. It has the domestic most advanced equipment, including the Numerical Controlled (NC) friction welding machine, drill pipe hammer forging and all-in-one tempering equipment. Besides, it is equipped with non-destructive testing (NDT), physical experiment, chemical composition analysis and metallurgical analysis apparatus. Our factory
get the ISO9001 in 2009 and API certification in 2002 one after another, which becomes one of the API authorized enterprises in geological departments.