Core Barrel Roller Bit

The single roller bit is used as an accessory, which is installed on the barrel drill alternately. It is mainly used in the pile foundation construction of municipal bridges and buildings, and is mostly used in coastal areas.

The rock-breaking principle of the rotary barrel drill is to form a broken ring by alternating inner and outer roller bit, then break rocks through extrusion, shearing and impact. Finally, break the rock core in the middle of the barrel bit by oscillating the barrel bit, and form the holes required for the construction after the rock core is taken out.

The O-shaped rubber lip is used to seal the large- diameter bearing
structure, which improves the bearing capacity and
effectively
improves the service life of the drill bit bearing;
Large-diameter cones and U-shaped bottom hole cutting mode
improve cutting efficiency and the stability of the bottom hole
operation of the drill bit
It can meet the needs of 1 20mm in width.