New CNC multi-spindle automatic

Posted on 25 Feb 2020 and read 618 times
New CNC multi-spindle automatic  A new version of the MS32 six-spindle automatic has been introduced by German CNC turning machine manufacturer Index, which is represented in the UK, Ireland and Middle East markets by Gosport-based Kingsbury UK.

Designed for the series production of high-precision turned parts from bar up to 32mm in diameter, the machine has been designed to be quick to set, thereby reducing the economical batch size.

Moreover, the way it can be configured to extend its range of applications increases its flexibility (

The maximum speed of the main spindles has been increased from 7,000 to 8,000rev/min, and their power has been increased by more than 50% — to 19kW.

Moreover, the machine can be equipped with six pairs of V-shaped cross slides and X, Y, Z axes at each spindle position; there is also the option of a simpler single-axis NC grooving or drilling/boring slide to serve any
of the six spindles.

Fluid cooling allows high power output (for heavier machining loads and higher speeds without excessive heat generation), while enhancing thermal stability.

Furthermore, the ability to select speeds and feeds independently at each spindle offers optimal results for chip forming, surface quality, tool life and production times — even when processing ‘exotic’ materials.

For fast set-up, each cross slide now has a W serration that matches a similar feature ground into the tool-holder (both live and static cutters) to ensure alignment to micron levels of accuracy.

Improvements have also been made to the machine’s simultaneous rear-end-working capability, as either one or two swivelling C-axis synchro spindles can now position themselves in two NC axes on a pair of slideways rather than one — plus they can be equipped with up to six tools, half of which may be driven (this feature gives a broad range of machining options, including off-centre drilling, threading, contouring, hobbing and polygonal turning).

If two rear-working synchro spindles are specified, it is possible to set the machine for ‘double-three’ machining, giving a rapid output of less-complex components with front and rear end features.

Also increasing efficiency is the availability of a ‘small twin turret’; this can be mounted on a slide in five of the spindle positions and contains static tools that can be changed within half a second.

The front-opening design of the MS32-6 ensures good accessibility; there are also various automation options that enable it to machine chucked parts.

Control is by Index’s Industry 4.0-ready iXpanel with 18.5-in touch-screen and Siemens S840D s CNC system.

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