After testing the material, hardness, effective hardening layer thickness and metallurgical structure of the failed shank adapter on YGZ90 rock drill, it’s found that all indicators and parameters meet the quality requirements for the heat treatment. Based on the analysis of usage of the shank

With the continuous expansion of the construction market, the traditional manual drilling and blasting has gradually withdrawn from the application market, and the drilling jumbo has begun to show itself. Because the traditional inclined hole cutting drilling method has high requirements for the

Brand : EPIROC
Part No. : 3115167200
Description : Piston Guide
Use in : Cop 1238 , Cop 1238k

In order to reduce the dust pollution produced by the down-hole drill in the working process, the dust removal system of the down -hole drill is designed. The working principle and composition of the dust removal system are introduced. The dust collection cover, cyclone dust collector, dust removal

The three-arm hydraulic rock drilling jumbo is equipped with a high-performance imported rock drill. If the rock drill breaks down frequently during tunnel excavation, it will seriously affect the construction progress and increase the construction cost. This paper analyzes the working principle

This paper aims at the common faults encountered in the production and use of the excavation jumbo, and analyzes the causes of the faults according to the sub-items of oil, wind and water.

This paper mainly introduces the construction of the ZQ-2 section tunnel of the new Yichang Zhengzhou Wanzhou highspeed railway connecting line. Because the surrounding rock of the tunnel in this project is of low grade, the tunnel section is large and most of them are long tunnels, and the

Brand : EPIROC
Part No. : 3128078407
Description : Spacer
Use in : Boomer 353 , Boomer K102 , Boomer M2d , Boomer Xe3 , Boomer Xl3 , Simba S7d

The rock quality in Jinfeng Gold Mine is overall poor， classified from extremely bad to medium． In light of the problems in the approach mining， such as the intense workload of roadway excavation， and poor excavation efficiency and quality， the excavation drilling blasting parameters are optimized

Based on the construction conditions and engineering characteristics of the Wujialiang super-long tunnel of Chengkai Expressway, this paper studies the mechanized excavation application of three-arm rock drilling rigs in high-risk long tunnels, and compares the cost of manual excavation