The paper analyzes developmental trends of hydraulic surface tophammer drill rigs home and abroad and proposes the classification of this kind of products. Based on the latest data, it compiles makers and models of the hydraulic surface tophammer drill rigs in China, collects specifications of the

Sandvik of Sweden is a well-known company in the world for manufacturing mining equipments, rock drilling machinery and rock drilling tools. Sandvik rock drilling products are renowned for high-quality and high—efficiency in international market, and as well represent the developing trend

Brand : EPIROC
Part No. : 0324155065
Description : Back Up Ring
Use in : Boomer K41 , Simba H1257 , Simba S7d

Sandvik of Sweden is a well-known company in the world for manufacturing mining equipments, rock drilling machinery and rock drilling tools. Sandvik rock drilling products are renowned for high-quality and high—efficiency in international market, and as well represent the developing

the paper focuses on the comparison of economy between the drill rig and the pneumatic drill and also makes an economic analysis of the full-computer-controlled drill rig and the conventional drill rig. Those can be used as a guild when selecting equipments during tunneling.