A construction engineer asked me how to choose a 3-ton single-drum roller with front steel and rear rubber wheels.
Actually, when it comes to buying rollers, there’s a simple rule: go bigger rather than smaller.
In this case, consider purchasing a 5-ton single-drum roller with front steel and rear rubber wheels. Let’s compare the parameters:
- Static pressure: The 5-ton roller is 2 tons heavier than the 3-ton one, so 5-ton wins
- Vibration compaction: The 5-ton roller typically has a centrifugal force of around 50 kN, while the 3-ton roller is around 30 kN. The 5-ton roller wins
- Compaction density: The kneading effect of the 5-ton roller is also superior to that of the 3-ton roller. The 5-ton roller wins again.
In summary, although the 5-ton roller is slightly more expensive than the 3-ton model, the performance improvement makes it well worth the extra cost. Most importantly, in cross-border trade, the transportation costs don’t differ much.
That said, if we must mention the advantages of the 3-ton roller, it is indeed more compact and offers greater operational flexibility. However, if the budget allows, it is recommended to go for the 5-ton roller.
