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Quarry operations begin with the removal of overburden (clearing of vegetation and top soil) using excavators and dumpers in order to expose the underlying bedrock. Removal of overburden is usually carried out simultaneously with quarry face development to ensure that optimum work area is achieved.
After stage 1, quarry managers will employ drilling machines to drill holes for installation of explosive agents in the bedrock.
A licensed shot-firer then blasts the bedrock; the resulting fragments of rocks are then transported for crushing.
The blasted stone blocks are loaded by hydraulic excavators or wheel loaders into dump trucks to the crushing plant.
At the crusher plant, the blasted rocks are reduced to the desired sizes. A crusher plant usually comprises 3 sections:
Screens are used to separate the stones into graded sizes as purposed to their end usage in infrastructure and building construction.
Minetech Realty Sdn Bhd was incorporated as a property investment holding company
The aggregates are then sold for use in the development and maintenance of road and railway infrastructure and the construction industry.
Types of aggregates marketed include: