The paper compiles information on several models of Doofor hydraulic drills from Finland and analyzes the designation and meanings of models of Doofor hydraulic drills. It also parses and reviews performance features,design concepts and structure characteristics, providing reference for users

The further analysis on the advantages and disadvantages and the applicability of pneumatic drill and rockdrilling jumbo for high-speed railway tunnel is of great significance. The application of pneumatic drill in drilling and blasting and restrictive factors of drilling and blasting of rock

Brand : EPIROC
Part No. : 3115297100
Description : Damping Piston
Use in : Cop 1638hd , Cop 1638hd+ , Cop 1838+ , Cop 1838hd , Cop 1838hd+ , Cop 1838he+ , Cop 1838mux , Cop 1838mux+ , Cop 1840 , Cop 1840+ , Cop 1850 , Cop 2238 , Cop 2238hd , Cop 2238hd+ , Cop 2550 , Cop 2550+ , Cop Sc25

The paper concerns a modular full-hydraulic rock drilling system. With its modular design, this rock drilling system can be combined easily according to the requirements of design to meet the demands of particular drilling and excavating of the tunnels. Operating on the pressurized fluid

Taking a drill jumbo as the background it is to analyze a failure in circuit breakers turning off for no reason.First of all it has to analyze principles of 2 sets of power supply in 380VAC and 24V DXC used in the jumbo in consideration with the principles so as to get a most optimal detecting way

Taking the construction of Zhangjihuai Railway Guantian Tunnel Project as an example，through theoretical analysis and field test，the following research results are mainly obtained. (1) Through theoretical analysis and field test，the hole，drilling and charging of the three-arm drilling rig

Combined with the engineering project,the characteristics and construction principle of the improved three-arm hydraulic drill jumbo are elaborated,the key points and matters needing attention in the construction of grouting drilling of the three-arm hydraulic drill jumbo are introduced

Brand : EPIROC
Part No. : 6060000751
Description : Cone
Use in : Boomer 281 , Boomer K111 , Boomer Xe3 , Simba H1354 , Simba S7d

The drilling and blasting method for tunnel has many disadvantages such as low mechanization,bad construction environment and high labor intensity. Hence,the large cross-section construction technologies for Hubei Section on Zhengzhou-Wanzhou High-speed Railway are summarized from the aspects

Based on the geological modeling with SURPAC software,the stope division and the third grade ore volume report are carried out for the gentle dip thick ore body of Jiama copper mine.The design guidance of medium and deep hole drilling and blasting is made, and the ore loss and dilution