Difference between Top Hammer vs Down the Hole Drilling - Drill Tech International There are two types of drilling approaches used in industrial applications. Two common methods, the Top Hammer vs Down the Hole drilling methods, perform similar functions but in different ways. The primary difference between the top hammer and down-the-hole drilling methods is where the hammer is attached. The hammer in the industrial equipment makes contact with the bit during the Down the Hole drilling method. The top hammer drilling method’s activity is concentrated at the very top of the drill string. The activity occurs separately from the bore.
Top Drilling With the Top Drilling Method, the piston will increase to the ideal rate. Once the goal velocity has been reached, the striking part of the process begins and disturbs the particles. Once it has struck the surface, the particles disseminated are transmitted throughout the area. As this is done repeatedly, the stress wave triggers a vibration throughout the rod based on the angling of the drilling activity. The stress waves created are influenced by the piston and drill string. Different geometric configurations shape the stress waves, determining the outcome of the drilling area. Down the Hole drilling During the Drill-Down the Hole method, the hammer doesn’t concentrate its efforts around the circumference. Instead, the process involves focusing the drill down the actual hole. The hammers strike the surface directly during the drilling process. Often chosen because it is the