The wheels of the trackless electric flat car are made of inner cast steel solid wheels and outer polyurethane rubber shaped wheels. Such wheels can carry dozens of tons of heavy objects without damaging the ground. There are four wheels, two driving wheels and two passive wheels. The driving wheel is connected with a reducer and an electric motor, and is responsible for providing driving force for the flat car. When turning, the automatic control system controls one wheel to rotate and the other wheel to stop, which can achieve the effect of turning. The passive wheel is a universal wheel, which is very flexible and can rotate 360 degrees freely. In addition, the universal wheel is installed on the beam
