Compact VMCs Benefit Job Shops, OEMs
The Bridgeport V480 and V710 vertical machining centers from Hardinge are suitable for applications ranging from job shop work to high-production manufacturing with fast rapid traverse rates, high axis and spindle acceleration/deceleration, and a powerful control. These VMCs provide a 40-taper, 10,000-rpm, 10-hp spindle; 33 foot-pounds of spindle torque; a 20-station swing-arm automatic toolchanger; and a manual pulse generator (MPG). Designed for flexibility and high throughput, the V480/V710 platform features a compact footprint and rugged construction.
Axis travels on the V480 measure 18.9" × 15.75" × 16.93" (480 × 400 × 430 mm). Axis travels on the V710 measure 27.87" × 15.75" × 16.93" (708 × 400 × 430 mm). The machine provides rapid traverse rates of 1,417 ipm on all three axes and acceleration rates of 6, 4.6 and 3.75 m/sec.² in the X, Y and Z axes, respectively.
Features include a 10.4" color LCD monitor, a circular flushing ring and a coolant chip flush system. The machines are offered with a Mitsubishi M70V type A control. Navi-Mill and embedded Ethernet are also standard. Some available options include 12,000- and 15,000-rpm spindles, CTS-Deublin rotary union, 280-psi through-spindle coolant, air blast, chip conveyors, spindle chiller and fourth axis pre-wiring.
The force that holds the toolholder in the machining center's spindle can weaken over time. If you haven't checked drawbar force in a while, this may be the weak link in your process.
Hand-scraping the mating surfaces of a CNC machine tool’s motion system offers myriad advantages.
... not to mention grinding with air. Thanks to high speed spindles powered by shop air, this job shop expands the work its VMCs can do.