DMG / MORI SEIKI offers the DMC 80 H linear in a multitude of versions – now also with an HSK-A100 tool taper and 430-Nm spindle

After the success the DMC 60 H linear achieved  last year, DMG / MORI will be presenting the premiere of the second winner in this series at the Open House 2013 in Pfronten: the DMC 80 H linear. Designed for larger workpieces, this horizontal machining centre impresses just like its smaller brother with maximum precision, excellent idle times and brilliant dynamics. Linear drives, an intelligent tool magazine and the extensive use of modular building block system offer productive machine solutions whatever the variant. The DMC 60 H linear has also been given a new interesting option: in future it will be available with an RS12 rotary pallet magazine,  thus offering users even more flexibility.

The areas of application of the DMC H linear series are as versatile as its different configurations. Like the DMC 60 H linear, the DMC 80 H linear is also predestined for both the production of classic components in the job shop sector and the machining of motor and gearbox components for the automotive industry. The travel ranges of the machines are ideal for the machining of the crankcases and cylinder heads of v-engines and serial six-cylinder engines. It is also well-suited for applications in the hydraulic industry and security sectors.

All the application examples have one thing in common: the high demand on productivity, precision and flexibility. The latter begins for the new horizontal machining centre with the work area:  the generous 630 x 630 clamping surface can accommodate workpieces with a diameter up to 1,000 mm. Workpieces with a maximum height of 900 mm and a maximum weight of 600 kg can be machined on the 5-axis version equipped with a swivel-rotary table. As far as the standard NC-rotary table is concerned, these values even go up to 1,100 mm and 900 kg. The small space requirement of the standard pallet changer brings a plus in productivity and allows an overall footprint of just 19 m² making this the most compact machine in its class.

The extensive spindle range offers the customer an endless choice of options. Other spindles available, in addition to the standard 12,000-rpm spindle (20 kW, 110 Nm), include an 18,000-rpm motor spindle and an HSK-A100 spindle with 430 Nm that sets new standards in heavy-duty machining.

The horizontal machining centre proves equally versatile when it comes to the available tool wheel magazines. There is space for 40 tools in the standard version of the HSK-A63 machine. Up to 363 tool pockets are possible if additional wheels are added. The short chip-to-chip time of this version is fully in line with productive and efficient manufacture: at 2.6 seconds it enables the shortest possible throughput times. Equipped with the large HSK-A100 tool interface the magazine can take up 243 tools in its most extensive version. Both expansion options can accommodate tools with a length of up to 650 mm.

In addition to the fast and intelligent tool magazines, the X, Y and Z-axes are also outstanding with regard to top dynamics thanks to linear technology. Rapid traverses of up to 80 m/min guarantee fast machining speeds, and the 0.8 g acceleration provides the necessary dynamics. To ensure long-term accuracy of the linear drives – as well as the motor spindle and rotary table - DMG / MORI SEIKI puts its faith in effective cooling of these components. The arrangement of the drives is another means used to prevent thermal deviations: the linear drives are all located outside of the work area, so they have no thermal impact during machining.

Chip disposal within the machine was also optimised by DMG / MORI SEIKI during the development of the DMC 80 H linear. One-piece vertical steel covers ensure long-term durability, while steep chip guide plates allowing unobstructed flow through the machine bed enable direct and simple connection to a central chip disposal system. A centrally located spiral conveyor transports the chips to the rear of the machine. This facilitates ease of use as does optimum accessibility of the work area and user-friendly controls: a Siemens 840D solutionline offering operators extensive programming possibilities is integrated in the clear and ergonomic SLIMline-panel with 15“screen.

Increased flexibility thanks to a rotary pallet magazine for DMC 60 H linear

In addition to the DMC 80 H linear DMG / MORI will also be presenting another innovation in the series at the Open House in Pfronten. In future the product portfolio will be expanded to include a DMC 60 H linear equipped with an RS12 rotary pallet storage. Ten additional pallets, or rather a total of 12 pallets provide the user with the chance of reacting individually and flexibly to the respective order situation. At 600 kg, the maximum loading capacity of each pallet is the same as the standard DMC 60 H linear machines. The pallet dimensions are 500 x 500 mm. The rotary magazine also contributes to reducing idle times, because the individual pallets can be loaded parallel to primary machining and pallet handling is fully automated.