INDEX MS40C-8

The INDEX MS40C-8 is the flagship of the INDEX multi-spindle automatic range — an 8-spindle CNC machine built for bar stock up to 40 mm (1.57 in) diameter. This is the largest and most capable machine in the INDEX multi-spindle lineup, designed for shops producing complex, medium-to-large turned parts at volumes where per-part economics demand multi-spindle productivity. The 8-spindle configuration combined with 40 mm bar capacity puts the MS40C-8 in a class of its own, handling parts that are too large or too complex for any other CNC multi-spindle automatic on the market.

The MS40C-8 features 8 independently driven spindles with speeds up to 5,000 RPM and 14 kW per spindle. The Siemens 840D sl CNC coordinates up to 51 axes simultaneously — a staggering level of complexity that INDEX's VirtualLine software makes manageable through offline programming and full 3D simulation. Each station accommodates up to 3 cross slides and 2 end-working units, and the back-working spindle with C-axis enables complete machining of both part ends. With 8 stations and up to 64 tool positions, the MS40C-8 can produce parts with an extraordinary number of features in a single cycle.

The MS40C-8 has no direct competitor. No other manufacturer produces an 8-spindle CNC multi-spindle automatic with 40 mm bar capacity. The closest alternatives are running two 6-spindle machines in tandem or using multi-tasking mill-turn centers like the INDEX R300 for lower volumes. The MS40C-8 is found almost exclusively at tier-1 automotive suppliers, major hydraulic component manufacturers, and defense contractors producing high-volume ordnance components. New machines are priced between $900,000 and $1,300,000, reflecting their position as the ultimate production turning machine. Used units are extremely rare and command $500,000-$850,000 when they appear.