The SD5K is a new all-hydraulic bulldozer with dual-circuit electronically controlled hydrostatic drive system, electronically controlled closed-heart load sensing device hydraulic system, PAT power angle shovel, and automatic control independent cooling system. Full power matching, flexible operation, low fuel consumption, stepless speed change, power and in-situ steering function, electric proportional control walking and working device operation accuracy and comfort; human-machine interactive instrument display, intelligent service system, fully sealed air-conditioning cab Modular design and easy maintenance. SD5K is an ideal machine for fine or heavy-duty operations such as port, traffic, stadium, electric power, urban earth and stone materials excavation, backfilling, modeling, and leveling.