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December 2017

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Swiss Turning Machine with Automation Options

TRAUB, a brand of the INDEX Group (Reichenbach, Germany), offers the sliding/fixed headstock automatic lathe TRAUB TNL20 with a quick start function.

In conjunction with a modified start-up strategy and the latest CFast memory technology, the control starts twice as fast as before. Thus, the machine is ready for production in minimal time. A CNC CPU developed by Mitsubishi, used for the first time in the NC section, is tailored specifically to the needs of a CNC machine and offers enhanced block processing speed. To extend this speed to the drives, the connection of the CNC control to the drive bus was equipped with a high-speed bus in the latest fiber optic technology.

The TNL20 can be equipped to use up to four tools simultaneously, and an optional robot cell integrated in the machine is available for automated loading of blank shafts or preformed workpieces.

The TNL20 is available in two versions. One equipment level is the TNL20-9, which has nine linear axes, two turrets (each with eight stations, max. 12,000 RPM, 2.0 kW), a back working attachment (four stations) and an autonomous counter spindle. The TNL20-9 can deploy three tools simultaneously, resulting in increased productivity.

A second version, the TNL20-11, is equipped with an additional front working attachment (six stations, three of which are live, max. 12,500 RPM, 2.0 kW) on an autonomous X/Z slide. By the interpolation of the H indexing axis of the front working attachment with the X-axis of the autonomous compound slide, Y machining operations or tool offsets can be easily performed with the front working attachment on the main spindle. At this equipment level, it is also possible to produce with up to four tools simultaneously to reduce machining times.

TRAUB TNL20 features include:

  • Work spindles: Main and counter spindles (max. 10,000 RPM, 5.5 kW, 17.2 Nm) are identical and designed as the liquid-cooled module motor spindles. The work spindle includes a clearance in the draw tube of 29 mm, allowing the use of a standing reduction tube for bar stock diameters up to 20 mm.
  • Parts handling and automation options: Small parts can be flushed through a tube inserted in the indexing axis of the lower tool carrier onto a conveyor belt on the right of the machine and carried away. For larger workpieces, an optional 2-axis gantry unit moves into the work area with a linear Z-axis and then swings in front of the counter spindle. To assist unattended machining of blank shafts or preformed blanks, a robot cell is integrated into the front of the machine.
  • Xpanel i 4.0 ready: Xpanel is included as standard in the TRAUB control and can be individually extended. The newly designed control panel with 19" multi-touchscreen in the center provides a familiar operating environment. The TX8i interface is enhanced by gesture control. The TRAUB WinFlexIPS programming system is available on the control.

For more information contact:

INDEX Corporation

14700 North Pointe Blvd.

Noblesville, IN 46060


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