Cobblestone stratum tunnel construction faces common challenges : loose soil structure, easy hole collapse and poor stratum stability. Traditional rock bolts only work well in intact hard rock, failing to deliver reliable support in loose geotechnical conditions. Nowadays, self drilling hollow ...
Integral Drill Rod: Core Advantages, Specifications and Industrial Application Scope Integral drill rods are integrated drilling tools with an all in one structure of drill bit, rod body and shank tail, widely adopted in mining, quarrying and rock drilling projects. Different from traditional ...
Tunnel construction frequently encounters complex soft geological conditions, among which sand layer surrounding rock is one of the most common and high-risk strata. This special rock formation features loose structure and poor self-stability, easily triggering gravel falling, local slumping and ...
Threaded rod-tooth drill bits serve in extreme rock drilling conditions featuring severe impact loads, intense abrasive wear, and diversified complex stress states. Such harsh working conditions impose rigorous performance requirements on drill bit substrates, including high structural strength, ...
Project Background In 2026, a large local mining contractor from Brazil launched a new open pit mineral exploration project. The client needed stable and high wear resistant downhole tools for complex stratum drilling, including frequent hard rock drilling and high temperature underground operation. ...
For underground mining operations, choosing the right drill bit directly impacts operational efficiency, downtime, and overall cost. A mid - sized underground coal mining contractor in Peru faced recurring challenges with drill bit wear, inconsistent hole quality, and frequent tool replacements when ...
In the large scale continuous mining operation in the Central Asia mining zone, roadway advance exploration and underground geological survey are essential safety pre work for daily coal mining. The local mine features complex and variable stratum conditions, with interbedded soft coal seams and ...
1. Customer Background The customer is a large open-pit quarry in North Rhine Westphalia, Germany, established in 2005, specializing in basalt and granite mining. Their products supply numerous road and rail infrastructure projects across Europe. In May 2025, the customer contacted us through our ...
1. Project Overview Project Type : International Hydropower Dam Construction (Tailrace Tunnel Section). Geological Profile : Predominantly composed of highly abrasive granite and medium hard sandstone (Protodyakonov scale f =10 -14). Scale : Simultaneous excavation of parallel tunnels (Tunnels No. 1 ...
At the 1200-meter tunnel working face, a hydraulic drilling rig was used to drill blast holes with a diameter of 45 mm and a depth of 5 m. The working stratum was medium-hard granite (compressive strength 120 MPa), and the environment was humid and dusty. Previously, when using ordinary alloy drill ...
Industry Scenario Southeast Asia is an important mining base in the global mining industry, with a large number of small and medium-sized mines engaged in mineral mining and processing. These mines often face the problem of high procurement costs for mining machinery components — local suppliers ...
Customer Background This customer is a medium-sized quarry located in Madrid, Spain, established in 2010, primarily engaged in granite and limestone mining. Their products mainly supply the local construction industry. In March 2025, the customer contacted us through our company's independent ...