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Unisig has introduced two models for its USC-M series of machines for milling and deep-hole drilling in moldmaking applications.  The USC-2M and -3M machines can mill and gundrill in various metals with a single universal CAT 50 spindle. The spindle’s 40 hp is said to provide high torque for aggressive metal removal and shorter cycle times. The use of a single spindle also reduces changeover times when switching between gundrilling and milling operations, the company says. A 60-position automatic toolchanger further minimizes nonproductive time. Both models can run oil and water-soluble coolant.

The USC-2M provides a nominal drill depth ranging to 1,500 mm (59.1"); the USC-3M’s drill depth ranges to 1,800 mm (70.9"). The two machines’ X-, Y- and Z-axis travels measure 2,100 × 1,500 × 850 mm and 3,100 × 1,750 × 1,300 mm, respectively. Both machine models feature an A axis with a range of +30 to -15 degrees as well as a B axis with 360,000 positions.

Both the USC-2M and -3M are built with fully enclosed machining envelopes installed above the shop floor to avoid time-consuming and costly below-ground installations.