New and Different—Really

“New” and “different” are often overused terms, but a new multi-spindle machine introduced by Tornos at this year’s IMTS (Booth S-8666) does fit the description. The Multi-Swiss is a six-spindle multi machine with the additional wrinkle of providing sliding headstock capability on all six spindles.

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“New” and “different” are often overused terms, but a new multi-spindle machine introduced by Tornos at this year’s IMTS (Booth S-8666) does fit the description. The Multi-Swiss is a six-spindle multi machine with the additional wrinkle of providing sliding headstock capability on all six spindles.
 
Like a conventional Swiss-type machine, Z-axis motion is generated by the stroke of the main spindle or, in the case of the Multi-Swiss, all six spindles operating independently. The Z-axis stroke of this 14-mm-diameter machine is 50 mm, with a maximum part length of 40 mm.
 
There are some that might take issue with calling this machine a Swiss-type since it does not use a guide bushing. However, the point is that the machine’s Z-axis motion is generated by the linear motion of the main spindles, eliminating the need for compound slides on the cross-slides.  
 
The machine is fully integrated, including a barfeeder, electronics, chip conveyor and ancillary equipment, all on a single platform. The machine uses 1.5-m bar stock, which reduces the overall footprint by 35 percent and enables higher rotational speeds for the machine’s main spindles.
 
The heart of the machine, or of any multi-spindle, is the spindle drum. Integrated 5.6-kW motors with an active cooing system can provide rotational speeds up to 8,000 rpm for each independently programmable spindle. The machine uses a torque motor for positioning and indexes station-to-station in 0.3 seconds. The drive motors are hard wired, so a reverse rewind is a necessary part of the cycle.
 
If your shop does medium- to high-volume production of highly complex parts, check out this new machine at the Tornos booth. It really is new and different. 

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