Which Types of Drill Bits Are Suitable for Rotary Drilling Rigs?

In the field of building foundation construction, rotary drilling rig plays an irreplaceable role. In order for rotary drilling rigs to operate efficiently under various geological conditions, suitable bits are indispensable. Below, let's take a look at the various types of drill bits suitable for rotary drilling rigs.

1. Short auger bit: Short auger bit drilling efficiency is high, suitable for clay, silt and soft rock formation. It can quickly cut rock and soil, and drill slag spiral to the surface, greatly improving the drilling speed.

2. Rotary bucket bit: Rotary bucket bit has strong adaptability to all kinds of soft soil, and is outstanding in backfill and silt soil. By rotating excavation, the soil slag is loaded into the bucket and raised to the ground to complete the excavation operation.

3. Barrel coring bit: In hard rock formation, barrel coring bit shows its skill. Its annular cutting edge cuts rock and can extract a complete core to provide samples for geological analysis.

4. Bottom expanding bit: When it is necessary to expand the diameter of the pile bottom, the bottom expanding bit can be useful. After drilling to the designed depth, it can deploy the blade and perform reaming at the bottom of the pile.

5. Impact drill bits: For hard gravel and bedrock, impact drill bits rely on their own gravity and impact force to break rock. Through repeated impact, the rock is broken to achieve the purpose of drilling.

6. Bailing drill: In the construction of loose sand layers, bailing drill plays a key role. Using the principle of negative pressure, the sand is sucked into the drill to effectively prevent hole collapse.

Different types of drill bits allow rotary drilling rigs to cope with a variety of complex geological conditions. As long as the construction personnel choose the suitable drill bit according to the actual geological conditions and engineering requirements, the rotary drilling rig can efficiently and stably complete the drilling operation, laying a solid foundation for the smooth advancement of the construction project.