The type and specification of the top hammer drill can be summarized according to different classification methods. The following are some common classification methods and corresponding specifications:
By diameter:
1. Small top hammer drill:
- The diameter range is usually between 20mm and 40mm.
- Suitable for stone mining and building decoration work carried out by hand or small machinery.
2. Medium hammer drill bit:
- Diameter range from 50mm to 80mm.
- It is more suitable for large-scale stone mining and building decoration work, which needs to be operated with more powerful machinery.
3. Large top hammer drill:
- Diameters range from 90mm to 100mm.
- Suitable for special needs in large stone mining and construction projects, which often require special customization.
By head shape:
- Cone top hammer drill bit: The head is tapered, suitable for specific drilling needs.
- Curved top hammer bit: The head is curved and may be used for drilling at special angles or curves.
- Flat head hammer drill: the head is flat and straight, suitable for general drilling work.
Other specifications:
- Length: The length of the top hammer drill is usually between 400mm and 1200mm, and the specific length may vary depending on the application scenario and requirements.
- Material: Common including high-speed steel, high-speed steel containing cobalt and solid carbide, etc., different materials of drill bits in hardness, wear resistance and toughness are different.
In addition, specific models and specifications may vary by manufacturer and product family. For example, some manufacturers may offer certain types of top hammer bits such as "76-T45" or "45-R32", which often include key specifications such as the diameter, length and shape of the bit.
In general, there are a variety of models and specifications of the top hammer drill, and the selection should be considered according to the specific drilling needs, working environment and material characteristics.