Toyoda offers the FH1250SW, a quill-spindle version of the FH1250SX, which combines the original HMC’s speed with the capabilities of a boring mill. The quill-spindle HMC is designed to increase efficiency and versatility of large-part machining through process integration.
The machine is said to demonstrate maximum power during large-diameter drilling and boring cuts. The 60-hp, 3,000-rpm spindle features 968 foot-pounds of torque, making it ideal for steel and casting applications, the company says. Equipped with a 5.11" quill diameter, the HMC is capable of a 21.6" W-axis stroke. The spindle is engineered with proprietary bearing technology, which can accommodate a cutting thrust load of as much as 4,500 foot-pounds.
The machine’s standard NC table supports workpieces as heavy as 11,000 lbs (5,000-kg), and the Y-shaped pallet changer configuration enables simultaneous setup of two pallets.
The quill-spindle HMC is equipped with dual-axis ballscrews in both the Z and Y axes. Oil-chilled ballscrews are included on the X, Y and Z axes to suppress thermal displacement during long cycle times. The 49" × 49" pallets with X, Y and Z travels enable large applications to be handled with ease, the company says.
Horizontal four-axis machining enabled McKenzie CNC to cut operations and cycle times for its high-mix, high-repeat work — more than doubling its throughput.
Cutting hardened steel, titanium and other difficult materials requires picking the right tools, eliminating spindle runout and relying on best practices to achieve tight part tolerances.
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