A trackless heavy-duty transfer vehicle driven by a motor driven by a motor and a gear reducer. Rubber wheels can reduce damage to the ground, sometimes directly on the factory floor, without a limited running distance. 360° on-site steering to a narrower space operation, no angle protection, sound and light alarm, limit damping, encountering people stop and other devices to protect the safety of workers. The installation of PLC has become a fully automatic, unattended function that makes it more intelligent and has become a pioneer in the industry 4.0 era. A battery supplies power to a DC motor through an electrical control system. We can make the trackless transfer cart start, stop, forward, retreat, turn, adjust speed and so on.