Coring Barrel Rockdrill Core Barrel Roller Bits Type for Concret Piling Foundation Construction

According to our many bore pile experience analysis, we summarize below possibility which would cause the roller. bit get stuck and partial wear.

1. Quality of the roller bit, like bearing quality and heat treatment.

2. Over heating of the welding, the damage of the seal.

3.Wrong Operating method.Faster rotate speed or excessive drilling pressure.

4.Narrower welding angle cause the palm tip serious in wear and tear.