CNC lathe from DMG rivals cam auto for speed

DMG has introduced a CNC lathe to replace the single-spindle cam auto for the series production of mill-turned components. The MSL 42/60 has fast-acting slides like a cam machine, but moved under NC.

The main benefit of using an MSL lathe is complete machining of components in one hit to high quality in a compact footprint. Setter / operators with knowledge of CNC programming are able to use the machine with minimal training. Compared with cam autos, the MSL is more reliable. Speeds and feeds can be optimised for each tool carrier at both spindles, so productivity is optimised, tighter tolerances can be held and surface finish is improved. There is no need to use expensive form tools, so running costs are reduced. Up to 14 tools can be in the working area and four tools can be in cut simultaneously, challenging the speed of cam auto's while taking out the "black art" associated with setting them. MSL multi-slide CNC automatic turning machines are available in two sizes for machining components from up to 42 mm and 60 mm diameter bar respectively. There are two designs with either six or seven computer-controlled axes. The 6-axis models have two compound cross slides, a third slide, and three fixed tools for front-end machining.On the 7-axis MSL machine, the latter tools are replaced with a 6-position turret, with driven and fixed tools. Main and counter spindle power ratings are 7.5 / 5.5 kW and 3.7 / 2.2 kW respectively, both having a maximum speed of 5,000 rpm. Acceleration of 5 m/s² with rapids of up to 30 m/min, make for very short idle times. The 42 mm, 7-axis MSL lathe is also available as a chucker for parts up to 85 mm diameter, with automated load / unload.