An indexing apparatus includes a fixture tool, movable relative to an operation cell and an indexing feature, fixed relative to the fixture tool. The indexing apparatus also includes a gripper, configured to engage the indexing feature. The indexing apparatus further includes a controller, in communication with the gripper. The controller is configured to locate the fixture tool relative to the operation cell from a gripper location of the gripper, engaged with the indexing feature.

Disclosed is a spacer gripper, a bead-apex storage system and a method for lifting one or more of the spacers from a stack of bead-apexes, wherein each spacer has a central aperture, wherein the central apertures of the spacers in the stack of bead-apexes are aligned in a stacking direction to form a central space, wherein the spacer gripper has a gripper head and a plurality of spacer engagement members protruding from said gripper head for reaching into the central space of the respective stack at least up to a second spacer of the respective stack from the top of the respective stack, wherein the plurality of spacer engagement members are movable into an engagement position for engaging said second spacer to lift said second spacer from the respective stack simultaneously with a first spacer at the top of the respective stack.