Five-Axis Universal Machining Center

The company says its new compact five-axis universal machining center DMC 60 T offers high dynamics, a fast pallet changer, short chip-to-chip times, optimized work area design and a good price/performance ratio. This universal machining center is based on the monoblock design with overhead traversing column, which has five axes already in the standard configuration. Key features are the fast pallet changer for setup parallel to production time, a chain tool magazine that can be expanded to 120 tools by request, as well as a fast CNC driven tool changer that is said to reduce chip-to-chip times to 4 seconds. Underneath the metal casing, the machine has been geared toward universal productivity. The company says that universality is ensured by the milling head in two ways: with a high performance 37.5-hp spindle with 12,000 rpm (optional 18,000 rpm), and with a B axis that can be interpolated with a swivel range of 30 degrees in each direction, beyond the horizontal or vertical axes, which allows machining with negative angles. The B axis itself is pretensioned via a spur gear, which the company says leads to distortion-free power transfer. During metal removal, the B axis is held in place with a clamping power of 2,628 ipm. High process productivity is ensured, says the company, by the company's motor spindle and by the rapid traverse speeds in the linear axes of the overhead traversing column, which are accelerated with up to 0.6 g to 1,968 ipm. The internal coolant supply is dimensioned at 40 bar (580 psi). And in the construction of the conveyor, the company has taken into account the expected high chip volume by installing a scrape belt conveyor above the gap sieve. The company says the machining center offers an optimized workroom and operating concept. The axis travel in the X axis is 30.7". This is said to contribute to accessibility of the spindle to the workpiece. For example, in vertical head position, the spindle can come as close as 57.6" to the table surface, and in the horizontal position, the minimum distance between spindle center and table surface is 5.4". In combination with the swivel range of the B axis (90 degrees ±30 degrees) that has been enlarged to 150 degrees, the user has free space for productive five-sided/five-axis machining. The pallet changer has been shifted by a 45-degree angle in relation to the work area: the work area is now accessible for the setup of the first piece and highly visible during the remainder of the production process. The machining center is controlled by the iTNC 530 or the MillPlus IT, for which OEEthernet on board is part of the standard configuration, as is a full range of software features for five-sided/five-axis machining.

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