How to use drill teeth correctly in rotary drilling?

In order to extend the service life of the drill teeth as much as possible and reduce construction costs, we have to consider how to use the drill teeth correctly.

Firstly, we need to select right drill teeth which is suitable for the strata and drilling tools.

1)Flat teeth: It is suitable for drilling in soil layers, has sharp teeth and fast cutting speed, but cannot be used for hard formations such as pebbles and rock formations.

2)Bauer flat teeth: Compared with bucket teeth, it is thicker and not easy to break. It is used for large diameter drilling buckets and is suitable for small and medium-sized pebbles and soft rocks.

3)Bullet teeth: Rock drilling teeth. Wear-resistant alloy points provide greater pressure to the rock, suitable for rock crushing.

4)Roller bit: It is suitable for drilling in super-hard rocks, crushing and crushing rocks. The self-rotation of the cone reduces the vibration of entering the rock, and the multi-wear-resistant alloy cutters extend the service life.

Of course, the above is only a relatively large classification of drill teeth, which also includes many different models and sub-categories and suitable for various substrates. Please let us know if any needs, our professional team will provide you all in one solution.

At the same time, we also need to select right teeth holder for the drill teeth. There are 4 kinds of teeth holder for bullet teeth generally. Small round teeth holder, alloy small round teeth holder, alloy large round teeth holder and square teeth holder.

1)Small round teeth holder

Features: Small round teeth holder usually have a smaller diameter and a round contact surface. This design helps provide better stability and precision during drilling.

Applicable scenarios: It is suitable for occasions where the geological conditions are relatively simple or where the drilling precision is required to be high. For example, in geological conditions such as soft soil and clay, the small round tooth seat can effectively penetrate the stratum and maintain a good drilling direction.

2)Alloy small round teeth holder

Features: The alloy small round teeth holder is made of high-strength and high-wear-resistant materials such as cemented carbide on the basis of the ordinary small round teeth holder. This makes the teeth holder has higher hardness and wear resistance, and can maintain a good working condition for a long time under complex or hard geological conditions.

Applicable scenarios: The alloy small round teeth holder is particularly suitable for drilling strata containing hard inclusions such as pebbles and boulders, as well as deep drilling projects that require frequent replacement of drill teeth. It can reduce the number of drill tooth replacements caused by wear and improve drilling efficiency and economy.

3)Alloy large round teeth holder

Features: The alloy large round teeth holder has a large diameter and a round contact surface, which enables it to provide a larger contact area and stronger rock breaking ability during drilling. At the same time, the teeth holder made of materials such as cemented carbide also has high wear resistance and hardness.

Applicable scenarios: The alloy large round teeth holder is suitable for drilling hard geological conditions such as hard rock formations and medium-weathered coarse-grained granite. Its large contact area and rock breaking ability can ensure the smooth progress of drilling, while reducing the number of drill teeth replacement due to wear.

4)Square teeth holder

Features: The square teeth holder has a square contact surface. This design enables the teeth holder to provide more stable support and guidance during drilling. At the same time, the square teeth holder can also be customized according to different drilling needs to meet specific engineering requirements.

Applicable scenarios: The square teeth holder is suitable for occasions that require higher drilling accuracy and stability, such as tunnel construction, pile foundation engineering, etc. Its stable support and guidance can ensure the smooth progress of drilling and improve construction efficiency and quality.

Secondly, after finding the right drill teeth, we need to install the drill teeth correctly. The service life of drill teeth will be extended under right installing angle and position. As the data of difference teeth from different factory are difference, our engineer will provide our customers guidance in this part when our customers install the drill teeth.

Thirdly, it’s also important to operate drilling processes correctly.

1)Choose the appropriate drilling method (cutting, crushing, turning, grinding) according to the geological conditions.

2)Control the drilling speed to avoid excessive drilling speed that may cause increased wear of the drill teeth or damage to the drill tool.

3)Pay attention to the ammeter indication during the drilling process. When the rated current is exceeded, the drilling speed should be appropriately slowed down.

Last but not least, the correctly maintenance of the drill teeth is also important.

1)Clean after each use: After each use of the rotary drilling teeth, clean them immediately to remove mud stains and impurities on the teeth to prevent the soil from drying and becoming difficult to remove, and to avoid rust.

2)Check the connection status: Before and after each use, check whether the connection between the rotary drilling teeth and the joints is intact to ensure that there is no looseness or damage to avoid accidental damage to the teeth during use.

3)Dry storage: When the rotary drilling teeth are not in use, they should be stored in a dry and ventilated place to avoid rusting of the teeth due to a humid environment.

4)Regular ventilation: Even when not in use, the teeth should be taken out for ventilation regularly to prevent moisture and mildew caused by long-term closed storage.

5)Check the wear condition: Check the wear condition of the teeth regularly. If there is severe wear or damage, replace them in time to avoid affecting the construction quality and safety.