DMG MORI 5-AXIS TRAVELLING-COLUMN MACHINING CENTRE FOR LARGE WORKPIECES
High precision 5-axis machining of components up to 2,300 mm long may be carried out productively on the new DMF 200|8 travelling-column machining centre from DMG Mori. Markus Rehm, Managing Director of Deckel Maho in Seebach, Germany where the machines are built said, “This is the latest in a line of such DMG Mori machines of which more than 2,700 have been installed worldwide. It takes the technology to a level of precision and performance never seen before.”
Having a rigid table measuring 2,300 x 850 mm and travels of 2,000 x 800 x 850 mm, the DMF 200|8 offers users in the aerospace and mouldmaking industries, for example, scope to machine long components up to the maximum table load of 2,000 kg. Rapid traverse in the linear axes is 50 m/min as standard, but with an optional linear drive in the X-axis it reaches 80 m/min. Holistic cooling throughout the machine delivers long-term accuracy and tight tolerances.
The B-axis milling head with 6,000 Nm maximum clamping torque offers a swivel range of ± 120 degrees for flexible 5-axis machining. A 15,000 rpm speedMASTER spindle is standard, while an extensive choice of other modular spindles is offered including a 200 Nm high-torque version and a 20,000 rpm high-speed version. All are covered by a 36-month warranty, regardless of running hours.
The machine is equipped with a Siemens control and the latest version of DMG Mori’s proprietary APP-based user interface, CELOS. So users are well equipped for digitalised production and automation, for example by the attachment of the manufacturer’s PH Cell automatic pallet changer.
During the development of the DMF 200|8, the working area was optimised by the innovative tool change, which takes place behind the table for fast, safe, collision-free cutter exchange, so the entire clamping surface is available for use. Compared to the predecessor model, the working volume is over 50 percent larger, creating new possibilities for machining complex components. The ability to employ 400 mm long tools is said to be a unique selling point in this machine class.
DMG Mori claims that a strong argument for investing in its travelling column machines has always been their stability, so the manufacturer has specifically considered this area. The DMF 200|8 has been designed in such a way that the cantilevered Y-axis has consistent rigidity over the entire traverse. Three linear guideways in the X-axis reinforce the stability of the machine and create the necessary basis for highly precise and productive machining. Even with the Y-axis slideway fully extended, maximum spindle power can be applied for machining.