The valveless DTH Hammer Bit has no valve. On the cylinder wall is the air distribution system that regulates the piston's reciprocating action. The air is automatically expelled as the piston travels. This DTH Hammer Bit may employ compressed air expansion since it doesn't need valve plates to distribute air. It workforces the piston to move, which lowers power usage. Fewer elements, a straightforward structure, and easy processing define it. Pressure consumption can be reduced by roughly 30% as compared to DTH Hammer Bit. with valves. According to the exhausting manner, the valveless DTH Hammer Bit. is further separated into side exhaust and center exhaust. Nowadays, center exhaust valveless shocks constitute the majority.
2) The DTH Hammer Bit may be split into a low-pressure DTH Hammer Bit and medium-high-pressure DTH Hammer Bit depending on its rated operating pressure. Low-pressure DTH Hammer Bit typically has a rated operating pressure of 0.5 to 0.7 MPa, medium-pressure DTH Hammer Bit usually ranges from {{10}}.8 to 1.5 MPa, and high-pressure DTH Hammer Bit often ranges from 1.5 to 2.0 MPa.
3) The DTH Hammer Bit may be separated into a small-diameter DTH Hammer Bit and a large-diameter DTH Hammer Bit based on the drill intake diameter. Small calibers are those with a caliber under 200mm, and big calibers are those with a caliber of more than 200mm.
4) The DTH Hammer Bit may be classified into three types: eccentric, hollow, and central through-hole types, each of which has a particular application range.
Bit Shape: DTH hammer bits come in various shapes such as spherical, ballistic, cross, and chisel. Each shape is suitable for different rock types and drilling requirements. For example, spherical or ballistic bits are ideal for hard rock formations, while chisel-shaped bits work well in softer rock formations.
Bit Diameter: DTH hammer bits are available in different diameters, ranging from small sizes like 2 inches to larger sizes like 6 inches, depending on the desired borehole diameter.
Size: DTH hammer bits come in various sizes to accommodate specific drilling requirements. The size of the bit is selected based on the desired borehole diameter. For instance, smaller diameter bits like 2 inches or 3 inches are suitable for narrower boreholes.
Applicable Wind Pressure: DTH hammer bits have specific applicable wind pressure ranges, which vary based on the manufacturer and model. The wind pressure range determines the optimal air pressure required for the efficient operation of the bit. Different models of DTH hammer bits may have varying wind pressure requirements, such as 10-20 bar or 20-30 bar.
