Kitako
Four spindles, generally partnered in pairs, are mounted in a square pattern in a large cylindrical carrier drum. When the carrier is indexed 180 degrees, two spindles/parts move from the loading zone to the machining zone. At the same time, the other two spindles/parts move from the machining zone to the loading zone. As two parts are being machined, two new parts are being loaded. This continuous indexing is similar to that of a pallet changer on a machining center, but can take as little as two seconds to complete, you could be back in the cut in only five seconds.