This article, published in a professional construction machinery magazine, conducts in - depth discussions on world - renowned brands such as Caterpillar, Komatsu, Hitachi, and Volvo. For each brand, it elaborates on its development history, technical advantages, and market positioning. In terms of models, it focuses on analyzing the performance parameters, applicable working conditions, and user feedback of popular models such as Caterpillar Cat 336D2, Komatsu PC360 - 8, and Hitachi ZX360H - 5A. Through actual cases and data comparisons, it clearly presents the performance of each model in different operating scenarios for readers, helping them accurately match the excavator that suits their own needs. For example, when introducing the Caterpillar Cat 336D2, it mentions that in large - scale mine mining, relying on its powerful power system and efficient hydraulic control, it can quickly and stably complete a large amount of ore excavation work, which is highly favored by mining enterprises.