Trackless transfer cart for freight rail 90 tons is composed of frame, battery, DC motor, reducer, rubber covered wheel, electrical control system, it can travel without laying track, it can transport goods to different places, so that the place of transportation is not limited, it is equipped with brake device on the wheel, it can stop immediately when the power is off, its stable and safe performance is very high, it can realize uninterrupted, turn while walking, making the operation more convenient, it is more popular when transporting materials in factories and workshops.