Line of High-Speed VMCs for High-Precision Industr

Haas Automation, Inc. (Oxnard, CA) now offers a line of VMCs designed for the moldmaking, tool and die and medical industries: VM Series—high-performance VMCs that provide the accuracy, rigidity and thermal stability required for high-precision work.

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Haas Automation, Inc. (Oxnard, CA) now offers a line of VMCs designed for the moldmaking, tool and die and medical industries: VM Series—high-performance VMCs that provide the accuracy, rigidity and thermal stability required for high-precision work. They are available in three frame sizes, feature a 12,000-rpm spindle driven by a 30-hp vector dual-drive system, a 24-pocket side-mount toolchanger, a high-speed control with full look-ahead and a unique, multi-fixturing table. The smallest is the VM-2, with a 30"x20"x20" work cube and a 36"x18" table. The VM-3 features a generous 40"x26"x25" work cube and a 54"x25" table, and the VM-6, the largest, has 64"x32"x30" travels and a 64"x28" table. Each machine’s cast-iron table features T-slots in both the X and Y directions, as well as precision dowel-pin bores and an array of drilled and tapped holes; high-precision linear guides on all axes; high-speed brushless servos combined with fine-pitch ballscrews and high-resolution encoders; a 40-taper spindle that uses an inline direct-drive system that couples the motor directly to the spindle; and, on-the-fly wye-delta switching. Coolant is circulated through the head castings to remove heat generated by the spindle and to prevent radiated heat from affecting the casting, the headstock is insulated and cool air is circulated through the entire assembly. An electronic thermal-compensation algorithm in the Haas control models ballscrew heating from high-duty cycles and automatically corrects for any expansion.. They come standard with a 24-pocket side-mount toolchanger that swaps tools in 2.8 seconds.