Segment and crowns are essential components of diamond core bits used for drilling holes in tough materials like concrete, stone, and other hard surfaces.
Segments: These are the individual parts of the outer edge of the core bit. Segments are made of a mixture of diamonds and metal powders that are pressed and sintered (bonded) together. The segments contain the actual cutting diamonds that grind away the material being drilled. The number, shape, and quality of the segments affect the performance and lifespan of the core bit.
Crowns: The crown is the entire outer edge of the core bit, consisting of all the segments. The crown's diameter determines the size of the hole being drilled. Crowns can vary in diameter, number of segments, and segment arrangement depending on the specific drilling requirements.
Both segments and crowns are critical for the efficiency and effectiveness of diamond core bits, as they determine how well the bit can cut through the material being drilled.
For reinforced concrete, exposed aggregate and precast concrete
Developed with a softer bond for a fast, aggressive cut and long life
Serrated design grips straight into the substrate reducing deviation from point of contact
Designed specifically for drilling through concrete
These segments offer durability and efficiency when cutting through this hard material.
These segments are coated with abrasive materials like diamond grit, offering enhanced cutting performance when drilling through abrasive materials such as asphalt or heavily reinforced concrete.
For reinforced concrete, exposed aggregate and precast concrete
Featured on core bits < 66mm in diameter
High-speed crowns are designed for applications where drilling speed is a priority.
For heavily reinforced / high MPa concrete
Featured on core bits < 45mm in diameter
Developed with a softer bond and larger diamonds to make faster cutting speeds compared to regular crowns.
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