Selection depends on four key factors: 1) Conductor Type & Size: This determines the required pulling force (kN) and tension. 2) Line Length: Longer pulls may require larger bull-wheel diameters and higher rope capacity. 3) Terrain: Difficult terrain may necessitate equipment with advanced controls or remote operation. 4) Project Scale: Whether it's a single line or a large-scale OHTL project. Our technical team can provide a precise recommendation based on your project specs.