The MILLAC VII Series of vertical machining centers from Okuma America Corp., Charlotte, N.C., represents the pinnacle of large VMCs with high rigidity, heavy cutting ability and high operability, according to a Jan. 29 company news release. The VMC series is said to feature a strong base column construction with optimally placed ribs to counter chatter and twisting during heavy-duty cutting. In addition, traditional box ways are used for all axes to provide high accuracy and rigidity over the long term.

With the use of variable speed gear head and large-diameter spindle bearings, these vertical machining centers can perform heavy-duty cutting and high speed machining with high torque from low to high speeds, according to Okuma. The X, Y and Z travels and large table designed to withstand heavy loads are said to be well-suited for machining large, heavy work pieces.

The MILLAC VII Series includes a diverse lineup for a variety of machining needs: 561, 611, 761, 852, and 1052 models.

Features of the MILLAC VII Series include:

• Highly rigid, slide guideway structure,
• Variable speed gear head,
• Large diameter spindle bearings,
• Heavy-duty cutting,
• Thermo-Friendly Concept Intelligent Technology, and
• OSP-P300 open architecture control.