The machine uses a common machine platform for three sizes for bar diameters from ø 13 mm to ø 51 mm, as in the case of the largest model, the SPRINT 420. Up to three machining units with up to three B-axes and a total of five, six, or nine axes allow for efficient complete machining of demanding workpieces up to 600 mm long – bar material as well as chuck parts. The proven SWISSTYPEkit, which has been used for many years, is also available here as an option. This increases the stroke from 200 mm to 360 mm, so that the SPRINT 420 excels in both short and long turning. The changeover time between the two variants is less than 30 minutes.
Automated production with presettable tool holders
The SPRINT 420 features a left and a right spindle, both working with a bar passage of ø 51 mm at up to 6,000 min-1, a torque of 88 Nm, and 15 kW power. The modular tool environment also allows for an application-specific configuration of the SPRINT 420. Three independent tool carriers provide space for a total of 35 tools, of which 27 are driven tools. Their speed is 8,000 min-1.
An innovation is the presettable tool holder system. It facilitates digital data exchange as well as unmanned and automated operation – for example, via a bar loader or an integrated robot for handling chuck parts.
On the control side, the SPRINT 420 is operated via an ERGOLINE X control panel with CELOS X on a Fanuc 301-B Plus. The app-based manufacturing platform enables intuitive operation and facilitates integration into a connected work environment.
A platform for three sizes
Following the SPRINT 420, DMG MORI will also launch two smaller models, the SPRINT 130 and SPRINT 260. The smallest processes bar material with diameters from ø 13 mm to ø 26 mm. Since all three versions share the same platform, different configurations with up to three machining units and a total of nine axes are possible in each size.
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