The term energy chain or e-chain is closely related to the terms drag chain and energy supply chain. The energy chain is a product that safely transports cables along a certain distance. They are primarily used for machines where the guided cables and hoses have to be moved a certain distance without being damaged, so that a machine shutdown is prevented. The energy chain is a safe way of moving energy and data cables or media hoses over this distance.
There are different types and versions of energy chains to meet different requirements. For example, there are completely enclosed versions that withstand external influences such as dirt or swarf and still guarantee the function of the machine. Variants specifically designed for several directions of movement, such as on robots, are also common, as are special materials that prevent electrostatic charging.