The idle time of the 2SI Series and 6/8 Spindle Automatic Lathes are minimized by loading and unloading workpieces while machining. The shorter cycle time job, the greater advantage of using a machine with a short idle time.
Although this process takes more time and more difficult than shaving a flat surface, Construction for both guideways are chevron-type (V-shaped) slideway which eliminates any zig-zag movement and prevents tension torque while ensuring smooth and accurate machining.
Cams have usually been used in multi-spindle automatic lathes. However, not using a cam achieves a simpler structure and a wide tooling zone.
Tooling zone of multi-spindle lathe tends to become narrow since there are same number of chucks and tools as spindles.
However SHIMADA's 6/8 spindle lathe is different from other company's machine, and have no column which attaches tools between spindle drum and end slide.
Therefore the widest tooling zone can restrain twining of chip and realizes wide range of work materials.