When selecting a skip loader, the most critical factor is the lifting capacity, typically ranging from 3 to 20 tons. You must ensure the hydraulic system uses high-pressure hoses and reputable valve brands to prevent leaks. Additionally, check the arm type: telescopic arms offer greater flexibility for stacking containers, while swing arms are more traditional and cost-effective. The chassis compatibility is also vital; ensure the upper body dimensions align with brands like ISUZU, HOWO, or SHACMAN if you are buying the superstructure separately.