When evaluating a tractor loader, the most critical technical factor is the Rated Load Capacity, which must align with your specific operational needs (e.g., 0.8 tons to 5 tons). You should also verify the Maximum Dump Height to ensure it can clear your transport trucks or mixing hoppers. Pay close attention to the Engine Brand and Power (kW/HP); reputable brands like Weichai, Cummins, or Yunnei are preferred for their global parts availability. Additionally, check the Hydraulic System Pressure and Cycle Times (lifting, dumping, lowering) as these directly impact work efficiency.