1.Here are two choices for ATC module:standard 16-tools carousal type, or optional side-mounted 24-tools cam type. 2.Spindle thermal expansion is in the same direction with Y-axis thermal expansion, so they will be compensated automatically. 3.The electric cabinet is fully isolated for cleanness, Heat dissipation is achieved by a high performance heat exchanger. Another cooling system is provided for the heat-dissipating devices. 4.The feed is driven by the oversized ball screw with preloaded double nuts and pretentioning on the tail end, ensuring minimum heat strain and higher accuracy in the feed. 5.A super precision ball screw is positioned in the exact center of the guideway, assuring accurate positioning everywhere.