TURNING CENTER FOR LARGE PART TURNING APPLICATIONS

Mazak's (Florence, KY) SLANT TURN NEXUS 550M is a powerful, heavy-duty CNC turning center designed for large part turning applications such as oil field pipes, pipeline control valves, turbine wheels, aircraft and off-road parts and the production of power generating components for the aerospace, oil, gas, coal and nuclear industries. The SLANT TURN NEXUS series is a renovation of the SLANT TURN series of CNC lathes.

The STN550M headstock features a 10.8 in bore mounted on a 60 hp, 1,000 rpm turning spindle generates up to 5,163 ft-lb of torque for heavy duty cutting of large workpieces. The spindle is also used as a C-axis, capable of being indexed at 0.001 deg increments to accurately position the part for slotting cuts and precisely drilled holes.

For convenient tool management, the STN550M utilizes a 12-position drum turret for rapid tool indexing. The machine is also equipped with a 10 hp, 4,000 rpm high-speed milling spindle for roughing, grooving, endmilling and facemilling operations, allowing many processes to be completed in a single machine cycle. The STN550M's total travels are 18.25 in X-axis and 129.88 in Z-axis, with a 40.7 in swing capacity and a capacity steady rest of ø 16.14 in.

The machine also features an NC servo-driven tailstock to enable automated processes. The tailstock is fully programmable, driving the W-axis on its own AC servomotor and ball screw. The tailstock motion can be controlled through part program and automatically and accurately position to the desired location. Further, because of its positive independent drive system, the tailstock can be used to drill holes on a shaft centerline adding versatility to the jobs it can process.

The MX Hybrid Roller Guide System is integrated into the STN550M to deliver levels of durability and reliability that result in long-term accuracy. The MX Hybrid Roller Guide System increases vibration dampening to extend tool life, handles higher load capacities, accelerates and decelerates quicker to shorten cycle times, uses a grease pack for "greener" operations, and lasts longer with less required maintenance.

The sixth-generation MATRIX NEXUS CNC simplifies multi-tasking metalworking operations on the STN550M. It offers a 12 in LCD color display and the familiar QWERTY keyboard. A pointing device, acting like a mouse, and USB port for downloading programs are also at the operator's fingertips. Conversational part programming can be accomplished while the machine is cutting another part, or off-line in a CAD/CAM system. Once imported into MATRIX, a realistic 3D cycle simulation verifies the machining cycle and checks for machine interferences, greatly reducing the need for test cuts.

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