The VL-46~100AT/MT models are part of the HONOR SEIKI Twin series, engineered to redefine productivity in vertical turning applications. The central feature of these machines is the integration of dual spindles and dual tool turrets within a single, compact frame. This configuration allows for two primary modes of operation: either machining two identical workpieces simultaneously for maximum production speed, or executing two separate, sequential operations—like a first and second side—to achieve complete part processing in one setup. This flexibility is crucial for minimizing handling time, reducing work-in-process inventory, and achieving higher overall equipment effectiveness.

The series encompasses various models with increasing capacity, starting with the VL-46 and extending up to the VL-100, offering maximum turning diameters up to 1-100 mm (43.3 inches) and supporting maximum workpiece weights up to 1-000 kgs. All models are equipped with two 12-position tool turrets, ensuring ample capacity for complex tooling needs. The MT designation indicates models with milling capability for multi-tasking, while the AT models focus on pure turning. The machines come standard with essential features like a complete splash guard, automatic lubrication, and a hinge-type chip conveyor, ensuring a reliable and clean operating environment for high-volume, unmanned production.