As a world-renowned construction machinery brand, Carter Excavator provides a variety of tonnage options for different engineering needs in its product series. When we pay attention to the specific tonnage of the three Carter excavators, we can learn more about the three hot-selling excavators of the Carter 320D, Carter 336D and Carter 349D, which represent the tonnage range of about 20 tons, 25 tons and 40 tons respectively. These excavators are known in the industry for their high performance, durability and excellent working ability. First of all, the Carter 320D excavator, with its moderate tonnage of about 20 tons, is suitable for all kinds of complex earthworks, which can not only meet the fine construction requirements of small and medium-sized projects, but also play an important role in large-scale projects. Secondly, the Carter 336D excavator has been upgraded to a tonnage level of about 25 tons, which further enhances the digging force and loading capacity, and is especially suitable for heavy civil engineering projects with higher efficiency and performance. Finally, for larger mining or infrastructure projects, the Carter 349D excavator is one of the largest in the industry with its 40-ton tonnage design, unmatched power and performance. To sum up, the selection of three Carter excavators of different tonnages can flexibly adapt to different working scenarios and achieve the efficient completion of various complex engineering tasks from general earthwork excavation to large-scale infrastructure construction. In general, when purchasing or leasing a Carter excavator, it is important to understand and select the appropriate tonnage model according to the actual working conditions, and the Carter excavator can meet the market demand with a variety of tonnage configurations, helping customers improve engineering efficiency and reduce operating costs.