The maximum air pressure of 4" high air pressure DTH (Down-the-Hole) bits can vary depending on the manufacturer and the specific model of the bit. However, typically, the maximum air pressure for a 4" high air pressure DTH bit can range from 20 to 35 bar (290 to 507 psi). It's important to note that operating the bit at a pressure beyond the manufacturer's recommendation can result in reduced performance, increased wear, and potential damage to the equipment. It is always recommended to follow the manufacturer's guidelines for the specific bit being used.
Is there a big demand for 4"high air pressure DTH bits?
Yes, there is a significant demand for 4" high air pressure DTH (Down-the-Hole) bits in the drilling industry, especially in the mineral exploration and mining sectors. This is because 4" DTH bits are commonly used for drilling medium to hard rock formations, which are often encountered in mineral exploration and mining operations. They are also used in geotechnical investigations and construction projects where hard rock formations are present.
The demand for 4" high air pressure DTH bits can be influenced by various factors, including the overall demand for mineral resources, exploration activity, and the level of investment in mining and exploration projects. The popularity of high air pressure DTH drilling methods also plays a role in the demand for these bits.
There could be several reasons why a 4" high air pressure DTH (Down-the-Hole) bit may not be impacting:
Low air pressure: Insufficient air pressure delivered to the DTH hammer can cause the bit to stop impacting. It's essential to ensure that the air pressure supplied to the hammer is within the manufacturer's recommended range.
Worn-out bit: A worn-out bit can lose its impact energy, causing it to stop impacting. It's important to inspect and replace the bit periodically to ensure optimal performance.
Damaged hammer: Damage to the DTH hammer, such as a damaged piston, can cause the bit to stop impacting. It's essential to inspect the hammer regularly and perform necessary repairs or replacement.
Blocked drill hole: A blockage in the drill hole, such as a rock formation or debris, can prevent the bit from impacting. It's important to clear the drill hole regularly to prevent blockages.
Drilling parameters: The drilling parameters, such as feed force and rotational speed, can impact the performance of the DTH bit. Incorrect drilling parameters can cause the bit to stop impacting.
Incorrect bit size: Using a bit that is not the correct size for the hammer can cause the bit to stop impacting. It's essential to use the correct bit size for the DTH hammer being used.
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