Makino’s next generation of MAG series 5 axis machines is the the A7. based on the MAG series design, the A7 provides increased accuracy and reduced cycle times for large complex aluminum monolithic parts of todays aerospace structural applications, according to the company.
The A7 is designed with extended X, Y, and Z axis travels of 276 in., 99 in. and 40 in. (7,000 mm, 2,500 mm, and 1,000 mm) to accommodate part sizes up to 276 in. x 79 in. x 28 in. (7,000 mm x 2,000 mm x 700 mm) and 11,024 lb (5,000 kg). The machines extended Z axis travel provides increased side face machining efficiency for improved productivity and capability. New linear motors in the X axis produce thrust forces of 30,000N for acceleration rates up to 0.5G, further increasing productivity through reduced cycle times.
The machine features Makino’s new Volumetric Accuracy Compensation technology for improved tool tip positioning accuracy. This technology provides in-process tool tip corrections for sustained dynamic accuracy even in complex three dimensional geometries in parts up to seven meters.
Equipped with a 33,000 rpm HSK-F80 spindle with high power output of 107HP (80kW), at peak power output, the A7 spindle can produce chip removal rates up to 5,400-cc/min. The machine tool is also fitted with bellow covers for thermal isolation, preventing any hot coolant and chip contact with critical machine features. An optional thermal chamber can also be purchased for additional thermal protection.
The A7 can be equipped with an automatic pallet changer system for continuous operations, eliminating costly downtime for part changeovers. A standard 60-tool capacity automatic tool changer (optional 120 and 180-tool capacities are available) is equipped for unattended machining capabilities.
The A7 can be integrated with an automatic pallet transfer and storage system in a highly flexible Makino Machining Complex (MMC) for extended periods of unattended operation. This automation system assigns work and initiates operations automatically, maximizing spindle utilization for increased productivity.
www.makino.com
