2023-10-24
When selecting a tunnel drilling rig, the main data is the pulling force. Other data are easily ignored. The correct principle should be: first check whether the pulling force value of the drilling rig is within the required range, and the output torque of the drilling rig and the parameters of the drill pipe are the key. Data, of course, these capabilities of the drilling rig are determined by the heart of the drilling rig – the engine, so when choosing a drilling rig, you also need to look at