The relationship of the core barrel roller bits’piling efficient,rotate speed and wear and tear on construction concrete piling project

Before we cut the rock or piling on some concrete projects,we should control the rotate speed of the roller bit core barrel.The bigger diameter core barrel, the lower rotate speed, ensuring the speed in the reasonable arrange.The actual cases proofed that the wear and tear of the core barrel roller bit is related to it rotate speed.It’s very important to optimize the bits angle.