Pallet or transfer tracks are typical conveying equipment for serial production, where a product is partially or fully assembled from parts using manual and automated tools. The assembly takes place on pallets, the products are made in one cycle. Pallets traveling on double belt tracks are stopped with stopwatches at the various work phases. Manual and automatic workplaces can follow each other in any order. At automatic workplaces, we can position the workpieces with an accuracy of +- 0.03 mm. On the track, the pallets are guided and controlled by special spring pins. This solution is unique on the market, which greatly reduces the energy consumption of the system, and the control of the system can be solved in a much simpler way, thus reducing the probability of failure and the need for maintenance. Until now, the system has been serviced pneumatically, but as a novelty, the purely electrically controlled 24V system is now available, where again significant energy savings can be achieved. It is possible to assemble several products of similar size at the same time. The size of the pallets can vary from 100 x 100 mm to 1000 x 1000 mm.