Shimada Kitako 2SI MKII Series – Twin Spindle Single Turret Lathes

The Shimada–Kitako 2SI MK-II Series consists of twin-spindle, single-turret CNC lathes that allow concurrent machining on both ends of a workpiece. This configuration virtually eliminates spindle idle time by enabling front-side (OP10) and back-side (OP20) operations to run simultaneously. Loading time is reduced to zero, as one spindle performs machining while the other handles loading/unloading—significantly boosting overall productivity and efficiency. Once both operations are complete, the turret drum indexes 180°, and the previously idle spindle begins machining.

The 2SI Series can be configured with 6″, 8″, or 10″ chucks on both spindles. Uniquely, the 2SI-8 MK-II machine is designed with an 8″ chuck but can be adapted to handle a 10″ chuck if the application justifies and clearance and space is evaluated. This flexibility also allows for an asymmetric setup—featuring an 8″ chuck on one spindle and a 10″ chuck on the other—offering added flexibility for different part sizes. Complex, multi-axis, and multi-tasking operations are made possible with the integration of a Y-axis, tailstock, and driven tools (live tooling), effectively transforming the lathe into a compact mill-turn center.

To support affordability and ease of use, the 2SI Series is designed with externally mounted chucks, located outside the machine’s partition door. This design allows for quick manual setups and also facilitates automation. The machine footprint accommodates direct integration of robotic arms without requiring additional floor space. The 2SI Series can also be equipped with a wide range of automation options, including: pusher devices, part length detectors, feeders, chip conveyors, rotary tables, stockers, hopper/lifters, pallet changers, external measurement systems, part reversers, vision inspection, and coolant/air blow-off kits.