The applicable range of layered rock drill bits

Layered drill bit, as the name suggests, is a type of drill bit that is connected by layer structure.This type of drill bit belongs to the industry-specific accessories, and meets the standard and particularity of the use of rock drill bits in use and structure, so it is generally not common on the market.The applicable drilling rig model for layered drills is KHYD Series of electric rock drills are currently supporting rock drilling hardness coefficients10The best drill bit around the level.

The layered drill bit is shown in the figure below:

MinuteAs shown in the figure above, the layer drill bit is formed by a variety of separate alloy sheet drill bits. The number of combinations depends on the drilling diameter requirement. The maximum reamable diameter of the drill bit in the display is130mm, Of course, it can be connected to a larger size jacket.The advantage of using a layered drill bit is that through multi-layer intersection, the drill bit can ream and advance the rock layer separately when rotating and drilling. The alloy in the drill bit is relatively sharp, which can speed up the simultaneous advancement of the drill bit and the subsequent drill pipe..

The application areas of layered drill bits include some rock drilling projects, and the usable range of different rock types under various hardness coefficients.Common types of rocks are: marble, granite, limestone, etc. These rocks have high hardness, and only layered drill bits can be used to effectively and quickly advance rock drilling..