The new machines are connected by a common swivel axis – designed to double the output. Since the DMU/C 55 H Twin has independent X, Y, and Z axes, it is capable of compensating tool lengths and radii under changing environmental conditions. At the same time, the machining center guarantees maximum flexibility in the processing of complex precision components.
Wide range of components
The travel paths of the DMU/C 55 H Twin are 580 x 750 x 500 mm. Each table provides space for workpieces weighing up to 400 kg with a diameter of up to ø 630 mm and a height of 500 mm, allowing the machine to cover a wide range of components. The distance between the spindles is 640 mm. The modular design of the DMU/C 55 H Twin allows for application-specific equipment. The spindle range includes motor spindles with speeds of up to 30,000 rpm or a torque of 200 Nm.
Instead of the 4-axis standard table, a version for 5-axis simultaneous machining as well as milling-turning is available. Here, the DMC variant with pallet changer is also possible. A narrow swivel bridge and the double swivel rotary table with up to four B-axes are perfectly suited for automated large-scale production. The scalable tool magazine has a standard of 60 tool slots per spindle and can be expanded to 214 each, ensuring flexibility with a large variance of workpieces and drastically reducing non-productive times. The same applies to the fast tool changes with chip-to-chip times of up to 3.2 seconds. The compact tool magazine is designed for tools up to 400 mm in length and ø 160 mm in diameter. The footprint of the DMU/C 55 H Twin is a compact 18.4 m² (with pallet changer: 25 m²), allowing for increased production capacity even in tightly allocated production areas.
Exact positioning accuracy
A stable basic structure and good damping properties through cast parts made of EN-GJS-600-3, three guides in the X-axis, comprehensive temperature compensation, and permanent synchronization of the two spindles contribute to the DMU/C 55 H Twin meeting the highest accuracy requirements even in the long term – with a positioning accuracy of 5 µm. The rigid basic concept and low moving masses – they support a very energy-efficient operation – also allow for highly dynamic machining with accelerations of up to 10 m/s² and rapid movements of 75 m/min in the X and Z directions and 100 m/min in the Y-axis.
Integrated processes and automated manufacturing
In view of the Machining Transformation (MX), the DMU/DMC 55 H Twin proves to be a future-proof investment. It combines milling, turning, and grinding or even gear cutting in one setup, minimizing throughput times – a unique feature in the segment of double spindle machines. DMG MORI realizes autonomous manufacturing with robot-based workpiece handling and customized special solutions. For example, pallet handling such as the PH Cell series or connection to a central tool magazine (CTS) is possible. The platform for manufacturing digitalization CELOS X with a Siemens SINUMERIK ONE serves as the basis for a connected and digitized production. The use of numerous DMG MORI technology cycles also reduces programming times by up to 60 percent. Furthermore, the GREENMODE ensures energy-efficient and resource-saving machining to enable a path towards more sustainable manufacturing.
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