Edited by Jedd Cole
Associate Editor, Modern Machine Shop
Related Suppliers
Mitsui Seiki’s Vertex 55X II line of machines expands on the Vertex 550-5X line. Six models comprise the series, featuring linear XYZ axes measuring 550 × 600 × 500 mm (21.7" × 23.6" × 19.7"). The machines’ ultra-high accuracy package makes them well-suited for tight-tolerance die/mold work, aerospace and energy applications, and other high-precision component applications. Traditional machine warmup time is virtually eliminated, which significantly increases production in demanding precision jobs, the company says. Positioning accuracy in the X, Y, and Z axes is 0.001 mm (0.000040"), ±6 arcseconds in the A axis, and ±4 arc seconds in the C axis.
The company offers a 30,000-rpm spindle with the Vertex 55X II in addition to the 15,000- and 25,000-rpm choices. According to the company, users can take full advantage of the machine’s acceleration and deceleration characteristics and high-speed machining functions. An HSK 80-taper spindle connection (for those requiring more heavy-duty machining) is available as an option to complement the existing HSK 63- and 40-taper tool interfaces.
The line includes several configurations based on table sizes and types from 225 (9") to 400 mm (15.7") in diameter. A choice of rotary-axis drive systems (high-torque geared type or direct-drive) is also available.
A cast iron bed provides an ultra-rigid and thermally stable machine structure for machining accuracy. The machine’s “box-in-box” design provides good rigidity, stiffness and agility. All Mitsui Seiki machines have hand-scraped guideway mounting surfaces for high volumetric accuracies.
These machines are also available in the company’s B series of high-speed, five-axis VMCs dedicated to turbine blade production.
RELATED CONTENT
-
When Spindle Speed is a Constraint
Though it won’t replace high speed machining, Boeing sees “low speed machining” as a viable supplement to higher-rpm machines. Using new tools and techniques, a shop’s lower-rpm machining centers can realize much more of their potential productivity in milling aluminum aircraft parts.
-
Tool Considerations for High Speed Cutting
Fast CNC processing and high-pressure coolant contribute to removing metal at dramatic rates. But what should a shop know about cutting tools in high speed machining?
-
The 400° Difference
Cryogenic machining achieves dramatic tool life gains not by flooding the cut, but by refrigerating the tool.