Mazak’s heavy-duty Slant Turn Nexus 550 turning center is capable of turning large workpieces such as oilfield pipes, pipeline control valves and power-generating components for the aerospace, oil and gas, coal, and nuclear industries. The machine offers a maximum swing of 40.94" and is available with beds measuring 80", 120" and 160" in length for cutting workpieces as long as 158.8". An NC-programmable tailstock and optional automatic steady rest provide controlled support for short and long workpieces, the company says.
The solid headstock features a 10.8"-diameter (274.3-mm-diamater) bore and a 1,000-rpm, 60-hp spindle that generates as much as 5,163 foot-pounds of torque. The spindle accommodates a 21" chuck size. The tailstocks retract to a known position through the part program and its center makes contact with the workpiece for consistent holding pressure. The tailstock is also capable of drilling holes on a shaft centerline due to its positive independent drive system, providing process versatility. The 12-position non-lift drum turret with rapid tool indexing is designed for minimal interference with boring bars during turning. The turret enables quickly loading and unloading VDI-type toolholders by turning one bolt for faster tool setups.
The turning center is equipped with Mazak’s Matrix Nexus 2 CNC with both conversational programming and EIA/ISO formatted programming. According to the company, the control provides realistic 3D cycle simulation to verify the machining cycle and check for machine interferences, reducing the need for test cuts.
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This machine can run for a long time without any operator intervention, and users can machine finished parts from slug stock or cast blanks while achieving the same high productivity as if they were machining from barstock, the company says.