Mechanical Teleportation (機械式転移 Kikai-shiki Ten'i, Mechanical Transition) is a way to transport objects from one place to another through the power of machines (science). It is used by Kokonoe Mercury. It has more limitations than Teleportation Magic, such as requiring time to set coordinates.
This type of teleportation usually only transports objects from Kokonoe, but it is possible to teleport to her using special "keys", Iron Tager is one of them. When Lambda -No. 11- teleports to Tager, the teleportation is very stable, because her Idea Engine is attracted to his Event Weapon Imitation.
It is also called a Space-time Teleportation (空間転移 Kūkan Ten'i, Space Transition).