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Mazak’s slant-turn Nexus 550M CNC turning center is designed for large parts such as oil field pipes, pipeline control valves, turbine wheels, aircraft and off-road parts. It is also suited for the production of power-generating components for the aerospace, oil, gas, coal and nuclear industries.
The headstock features a bore, measuring 10.8" in diameter, mounted on a 60-hp, 1,000-rpm turning spindle, which generates as much as 5,163 foot-pounds of torque. The spindle is also used as a C axis and is capable of indexing in 0.001-degree increments to accurately position the part for slotting cuts and precisely drilled holes, the company says. Additionally, the C-axis spindle is a full-function CNC controlled axis for milling.
The turning center 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, end milling and face milling operations, enabling multiple processes to be completed in a single machine cycle. The turning center’s total travels are 18.25" in the X axis and 129.88" in the Z axis. Swing capacity is 40.7" and steady rest capacity is 16.14" in diameter.
The machine also features an NC servo-driven tailstock for automation. The tailstock is fully programmable, driving the W axis on its own AC servomotor and ballscrew. Through the part program, the tailstock will retract to a known position, and its center contacts the part with consistent holding pressure. Further, a positive, independent drive system enables the tailstock to drill holes on a shaft center line, adding versatility to the jobs it can process.
The Mazatrol Matrix Nexus CNC simplifies multitasking operations on the STN550M. It offers a 12" LCD color display. The machine can be programmed conversationally in Mazatrol language while it runs or offline in a CAD/CAM system. Once imported into Mazatrol Matrix, a 3D cycle simulation verifies the machining cycle and checks for machine interferences, reducing the need for test cuts, the company says.
The 2016 Capital Spending Survey
The machine tool market bottomed in the summer of 2016, but will continue to rebound in 2017 as shops invest in technology for unattended operation.