The twin-boom drilling jumbo is widely used in roadway driving or mining，the paper Combines with the practical application of a twin-boom drilling jumbo in Chambishi Copper Mines，analyzes the reasons of the frequent emulsification of hydraulic oil，and also introduces some ways of solution which

The article takes the Zhengwan high-speed railway 9 standard project as an example. This project successfully applied 10 three-arm rock drilling rigs for drilling and blasting excavation, especially in the exit section of Xingshan tunnel, and successfully applied to large sections of Ⅳ and Ⅴ

Brand : EPIROC
Part No. : 3222329227
Description : Air Valve
Use in : Simab H1252 , Simba H1254 , Simba H1354 , Simba M4c

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

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

The drilling jumbo is an important equipment for mining mechanization, the working performance of the drilling arm hydraulic system directly affects the operation efficiency of the drilling jumbo. After testing for the performance of the drilling arm hydraulic system, the impact, rotation

Brand : EPIROC
Part No. : 3222332266
Description : Rubber Eleme
Use in : Roc D65

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