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Tormach provides compact 4th-axis machining

Tormach Inc.’s microArc 4 device allows high-precision 4th-axis machining in a compact footprint.  The device works with all Tormach machines, and reduces operator workload and cycle times with a high-quality, low-maintenance harmonic drive. The drive provides precise motion control, coupled with much higher rapid speeds than a worm-drive unit.  Key features include near-zero backlash levels because of the harmonic drive system; no maintenance required; smoother start and stop motion due to a crossed roller bearing; and 9-mm center bore pass-through for long bar stock.