Choosing the correct roller is critical for a successful underground cable installation. Here's a quick guide:

1. Project Type: Determine if you are pulling in a straight trench, around corners, or through manholes. This will tell you the type of roller you need (trench, corner, or manhole roller).

2. Cable Weight & Diameter: Select a roller with a Working Load Limit (WLL) that can safely support your cable's weight. The roller's diameter should also be large enough to handle your cable size without exceeding its minimum bending radius.

3. Material: Rollers are typically made of steel, aluminum, or nylon. Steel rollers are highly durable for heavy-duty applications. Nylon rollers are often used for delicate or lighter cables, as they are non-conductive and prevent sparking.

4. Placement: Proper roller placement is just as important as the type of roller. Rollers should be spaced at regular intervals along the route to provide continuous support and minimize friction.