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The combination of Citizen CNC control and software with Miyano machine-tool technology has resulted in the Miyano BNX-42SY fixed-head turning centre for turn-milling applications.

The machine, which has two spindles and a single 12-station turret, has a similar productivity capability as a twin-spindle, twin-turret machine configuration.

The 42mm bar capacity BNX-42SY is being launched at Mach 2010 and follows the Citizen high-productivity capability of overlapping X- and Z-axis functions with simultaneous machining of components in the main 11kW, 6,000rev/min spindle and 5.5kW, 5,000rev/min second spindle.

The turret has 12 independent driven tool positions and 40mm of Y-axis cross feed that improves the level of setting flexibility and machining capability.

The Miyano has a clear screen display that is customised to the BNX-42SY through display illustrations, photographs and operational modes on the menu.

T-code commands now simultaneously execute multiple actions.

G-codes are available for 10 machining sections, such as simultaneous machining, pick-off and axis superimposition control, which, from a single command, simultaneously moves the axis to the start position and sets the work co-ordinates and change mode.

Set-up time reduction is achievable by inputting workpiece diameter, chuck and tool dimensions in advance, which enables the turret to automatically move to a safe index position by the shortest path.

A further example is the selection of a feature such as ‘cut-off operation’.

The pressing of a button initiates a series of operations involving tool positioning, the cut-off cycle and tool retract.

The machine requires 2.7 x 1.5m of floor space and is available with options including high-pressure coolant and a through-parts carrier for longer components.

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