dth button bits are widely used in mining, quarry, water well drilling etc. According to drill in different types of soil condition, we can make the DTH bits with different kinds of buttons to improve the drilling efficiency and extend the service life. Here is the introduction about the feature of the common buttons:
Romed/Round Buttons are usually used as gauge buttons of DTH bits, suitable for every abrasive and very hard formations.
Parabolic/Semi-Ballistic Buttons are usually used as gauge buttons and front buttons of DTH bits, suitable for medium abrasive and hard formations.
Ballistic Buttons are usually used as front buttons of DTH bits, suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft.
Sharp Buttons are usually used as front buttons of DTH bits for soft formations, suitable for high rotation speed and low bit broken rate soft rock.
Flat Buttons are usually used as protection buttons to reduce wear on rubbing surface of DTH bits.
The performance of the DTH bits majorly depend on the buttons of the head. Once the buttons are worn down a lot, it will affect the drilling speed. So the maintenance of DTH button bits after the drilling job is necessary. Actually there are some special designed grinding tool can be used to sharpen the DTH buttons. Welcome to contact us if you need any help.