The high-speed Apec G series of gantry-type, five-axis machining centers from CNC Systems is designed for complicated parts in the aerospace, automotive, and die and mold industries. Non-contact linear motors achieve high speed and accuracy with no backlash as well as extreme acceleration/deceleration with 100-percent directly transmitted power, the company says. All axes are directly driven, with X-axis travels measuring 78" to 1,810" and Y-axis travels measuring 78" to 236". The Z axis uses a dual drive. The machine also features a rapid traverse speed of 60 m/min.
The spindle features an inverter cooling system for temperature control and long-term operational accuracy. The 12,000-rpm, 40-hp spindle option enables heavy metal removal, while the 18,000-rpm, 90-hp and the 24,000-rpm, 60-hp spindles provide high-speed cutting.
According to the company, the gantry structure uses as little as half the working area of conventional double-column-type machining centers. A U-frame structure, linear scale feedback and dual-symmetry ballscrews on the Z axis increase cutting rigidity and stability. The Z-axis ram resists deformation and accommodates long, stable Z-axis cutting ranges. Further contributing to dynamic and static rigidity, roller guides on both side walls optimize span.