hard rock Discussion and practice on improving the service life of bit in hard and strongly abrasive rock drilling The properties of ore-rock are the key restraining factors for rock drilling efficiency and cost,extending the bit life is an effective measure to improve rock drilling efficiency and reduce cost.In view of the problem that the service life of the bit is generally short in hard and strongly abrasive
railway tunnel Applicability of Drilling Jumbo in Different Construction Methods of Railway Tunnel In view of such shortcomings as low efficiency and poor quality etc of traditional manual drilling by pneumatic drilling，this paper studied the applicability of drilling jumbo in the tunnel construction with full section method and step method through theoretical analysis，gave the applicability
tunnel Research on Excavation Construction Method of Three-boom Hydraulic Rock Drilling Jumbo As an advanced intelligent excavation equipment, three-boom hydraulic rock drilling jumbo has been gradually applied in long and huge tunnel construction. It can be combined with the construction characteristics of geological environment. Applying its technical features in construction
parts search 3128003114 Brand : EPIROCPart No. : 3128003114Description : Bearing HousingUse in : Simba H1354 , Simba M4c , Simba M6c
three-arm drilling jumbo Technology Study on Excavating Construction of Tunnel Drilling Jumbo A fully-computerized drilling jumbo is used for drilling excavation in view of the characteristics of Luojiashan Tunnel in Lot 7 of Zhengzhou-Wanzhou High-speed Railway，for the purpose of meeting the requirements of“mechanization，industrialization，specialization and informatization”in tunnel
Montabert An Investigation into Common Troubles with Hydraulic Rock Drills In view of complex assembly of hydraulic rock drills that their cause of troubles and damage are numerous. The text as based on multi home made hydraulic rock drills in operation is going to introduce mainly the rotation types, impact types, water circulating types, air circulating types
drilling rig Brief Introduction to Hydraulic Wheeled Drilling Rigs The paper covers developmental conditions of hydraulic wheeled drilling rigs home and broad, their distribution as well as status of domestic and foreign manufactures. It focus on demands from users, discusses the pros and corns of the currently and predicts the developmental trends
Doorfor Technical Features of Hydraulic Rock Drills from Doofor Inc. Doorfoc Inc. is a hydraulic rock drills manufacturer based in Finland, and its products are popular in domestic market for theri excellent qualiy. The paper describes the sepcifications of hydraulic rock drillsf from the company, in expection of offering experience for the development of
Montabert Technical Characteristics of Hydraulic Drifters from France-Based Montabert Based on data on Internet and promoting materials from Montabert, the paper studies the structures and technical characteristics of hydraulic drifters from Montabert. It highlights the technical characteristics of the blank firing and brake structure, composite piston, shape of the progressive
parts search 3128308372 Brand : EPIROCPart No. : 3128308372Description : SpringUse in : Simab H1252 , Simba H1254 , Simba H1354 , Simba L6c , Simba M4c , Simba M6c
tunnel Overview of China’s Rock Drilling Jumbos for Tunnels This paper gives the definition of the rock drilling jumbo for tunnel and describes China's manufacturers of rock drilling jumbos for tunnel and models of their products. The rock drilling jumbos are divided into 2 classes herein: jumbos with the usage report and jumbos without the usage report.
high-speed railway tunnel Application of Mechanized Construction Method to Large Cross-sectional Tunnel with Soft Surrounding Rocks The construction technology of mountain tunnel in China is under-developed. Hence,the mechanized construction method for large cross-sectional tunnel on high-speed railway is introduced. A new kind of tunnel construction organization mode with four tunnel construction lines,i.e. excavation,support
