A Cable Sagging Machine works by applying controlled tension to the conductor during stringing. It typically uses a powerful engine (diesel or gasoline) to drive a series of bullwheels or capstans that grip and pull the conductor. Integrated hydraulic systems and precise tension control mechanisms, often with digital readouts, allow operators to monitor and adjust the pulling force in real-time. By maintaining a specific tension, the machine ensures the conductor achieves the calculated sag curve, which is influenced by factors like span length, conductor weight, and temperature. Some advanced machines also incorporate data logging for quality control.