Makino A66 HORIZONTAL MACHINING CENTER

Technical Description

The 1999 Makino A66 Horizontal Machining Center is a high-precision CNC machine engineered for versatile and efficient machining operations. It features substantial axis travels with 31.5" on both the X and Y axes and 25.2" on the Z axis, enabling the handling of moderately sized workpieces. The machine is equipped with a numerically controlled rotary table facilitating full 4th axis capabilities with precise 1-degree indexing, supporting complex multi-axis machining. Its spindle is robust, powered by a 25 HP motor, delivering speeds up to 14,000 RPM to accommodate a range of material cutting requirements. The tooling system includes a 40-position automatic tool changer (ATC), enabling rapid tool swaps to minimize downtime and maximize productivity. Integral to its cooling system is a thru-spindle coolant delivery operating at 1000 PSI and 8 GPM, which ensures effective chip removal and heat dissipation directly at the cutting interface, enhancing tool life and machining accuracy. Additionally, the center supports rigid tapping functions, improving threading quality and consistency. The machine’s structure supports pallets measuring approximately 19.7" by 19.7" with dual pallet changers, allowing for efficient part loading and unloading during operations. The Makino PRO-3 control (Fanuc 16M based) provides advanced CNC control with precise axis positioning and programming flexibility. Overall, the Makino A66 combines high-speed machining, precise multi-axis control, rigid construction, and a comprehensive tooling and cooling system suitable for mold, die, and general manufacturing applications. It is a durable and reliable machine with a footprint of roughly 160" x 109" x 116" and a weight near 26,000 lbs, reflecting its industrial-grade build quality.