More and more logistics companies and warehouse operators are opting for transport systems which operate autonomously in-plant. This is because self-propelled robots, which move racks and goods around the warehouse as if operated by an invisible hand, are very versatile indeed. The company Grenzebach Automation is present in the marketplace with G-Com and has thus reached the technical pinnacle - with a mobile rack system. Small robots called "Carrys" pass under the mobile racks, pick them up and take them to the picking station automatically and then, once the items required have been taken, they transport them back to the warehouse. Different types of racks ensure that the most varied item types, from small components to hanging goods, can be stored in a safe and space-saving way. Indeed, particularly in e-commerce, speed and flexibility will be increasingly required to permit companies to react to dynamically changing requirements within intralogistics. Trading companies and their customers expect logistics to deliver a flow of materials in a highly adaptable and flexible way and to handle all logistical processes to allow quick reactions to changed conditions withhin the environment.