The spherical tooth series bit has a long passivation life cycle, and its non-grinding life is about 5-6 times that of the same diameter blade bit bit. It is beneficial to save auxiliary man-hours, reduce workers' physical labor and speed up engineering.Therefore, the taper connection and threaded connection button bits of different diameters are widely used in all kinds of hard and brittle rocks with drill rigs for rock drilling..Swedish engineering and technical personnel believe that the combination of button bit and hydraulic rock drilling rig is a good match for modern rock drilling technology..
In the past 20 years, the domestic and foreign button bit series have developed rapidly. With the rapid perforation of hydraulic rock drills, the goal of saving auxiliary man-hours for rock drilling and increasing industrial drilling speed has been achieved..
Compared with the traditional chip bit, the cylindrical bit has the
characteristics of long grinding cycle and fast drilling speed.Mainly divided
into the following categories:
The down-the-hole column tooth bit is a kind of drill bit used in conjunction with the down-the-hole impactor. It is used for drilling operations through splines and impactors. It is widely used in open-pit mines, quarries, hydropower projects, and drilling of water wells. , Excavation side pillar support, etc.It is divided into: low pressure DTH column tooth bit, medium and high wind pressure DTH column tooth bit.The down-the-hole cylindrical bit is used in conjunction with the down-the-hole impactor, which has the characteristics of straight drilling, high speed, and deep drilling.So it has been widely used in recent years.
2.Threaded connection column tooth bit
The threaded connection column teeth are mainly used with hydraulic rock drills (or pneumatic rock drills) and hydraulic drill rods (air drill rods). Through different forms of threads and drill rods, drilling operations are carried out. The diameter of the drill bit is determined by 32-203mm, mainly used in the mining of underground mines, open-pit mines, blast furnace openings in steel mills, etc.Fast speed and easy grinding.
3.Taper connection column tooth bit
The taper connecting column tooth bit is mainly used in conjunction with the pneumatic rock drill and the taper rod. It is connected with the drill rod through the taper to perform drilling operations. It is mainly used for secondary crushing in mines and anchor rod support. DHD360 DTH Drill Bits Protection, roadway excavation and other fields.