Upgraded VMC Advances High-Speed, High-Precision Mold Component Hard Milling 

The Mitsui Seiki VL30 Series high-speed vertical machining centers (VMCs) were developed specifically for high-speed/high-precision hard milling of mold components for a wide variety of applications for medical, packaging, industrial and aerospace applications. Hard milling graphite and copper tungsten electrodes are also part of the series’ capabilities.

The VL30 Series features high-thrust, high-efficiency linear motor drives for the X, Y and Z axes to machine hardened tool steel alloy components. The five-axis versions utilize direct drive rotary axes for smooth and optimally controlled complex contouring. Delivering up to 1,574 ipm cutting feed rate with 1 G acceleration/deceleration, the VMC provides improved speed and motion control in performing high-speed point milling in multi-axis contouring applications. For accuracy, the precision glass scale feedback system detects 0.1-micron increments.

The upgraded VL30 line offers advanced features for process automation, workpiece and tool handling, and the latest FANUC 31i-B with i-HMI operator interface to more easily realize improved output and profitability. The latest Graphite Package option enables customers to machine completely dry with no risk of electrode contamination or premature machine wear. All versions ensure simple integration with robotics and in-process part inspection.

Available in three models, the VL30-5X five-axis machining center, and VL30, and larger VL50 3-axis versions, this series features a 15-hp 50,000 rpm spindle accepting HSK E25 tooling for precise roughing and ultra-fine finishing. An integrated tool changer holds up to 90 tools.

Specifications include 7.9" × 11.8" × 7.9" X-, Y- and Z-axis travels, an 11.8" × 15.8" table and a compact 53" × 128" footprint.

Enhanced production features include a four-point leveling bed, finite element analysis-designed main components, hand-scraped castings for optimized machine geometry and chip and dust evacuation.