Technical Description
The Makino A120NX is a high-performance horizontal machining center designed for large-part production, featuring a robust 4-axis configuration with X, Y, Z, and B-axis rotary table support. The machine delivers expansive travels of 74.8 inches (1,900 mm) in X, 63 inches (1,600 mm) in Y, and 66.9 inches (1,700 mm) in Z, enabling the machining of oversized workpieces up to Ø82.7 inches (2,100 mm) by 70.9 inches (1,800 mm) tall and weighing up to 11,000 pounds. The standard pallet size is 39.4 inches by 39.4 inches (1,000 mm by 1,000 mm), with a dual-pallet changer that switches in just 38 seconds for maximum productivity. The spindle offers a horizontal orientation with a CAT50 taper (HSK-A100 and BT50 optional), a top speed of 8,000 RPM (up to 20,000 RPM with optional spindle), and a 30-minute power rating of 60.3 HP (up to 80.5 HP with optional motor). The automatic tool changer (ATC) holds 204 tools, with a rapid tool change time of 2.2 seconds, supporting tools up to 35.4 inches long, 14 inches in diameter, and 77 pounds in weight. All linear axes achieve rapid traverse and maximum feed rates of 2,126 inches per minute (54 m/min), ensuring fast positioning and efficient machining. The B-axis rotary table provides full 360-degree indexing for complex 4-axis operations. The machine is equipped with advanced thermal management, dual-supported and pre-tensioned ballscrews, and Makino’s four-cone pallet clamping system for superior rigidity, accuracy, and repeatability in demanding production environments.
