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Compact affordable HMCs with direct drive spindles
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August 2008
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Haas ES-5 Series HMCs are compact and affordable horizontal machining centres with 1,016 by 457 by 559 mm (xyz) travels, and a VMC-style enclosure that provides good visibility and access. Each machine features a 24+1 tool side-mount toolchanger, and is equipped with an 8,000 rpm, 40-taper spindle that uses an inline, direct-drive system that couples the motor directly to the spindle to provide fine surface finishes, extreme thermal stability and quiet operation. A 20 hp vector dual-drive system with on-the-fly wye-delta switching yields plenty of low-end torque and a wide constant-power band.
High lead ballscrews and high torque servomotors on all axes on all models provide rapids up to 1,000 ipm to reduce cycle times, and the 24+1 tool side-mount toolchanger swaps tools quickly to keep non-machining time to a minimum.
Options include a 12,000 rpm spindle powered by a 30-hp vector dual-drive system for more power and additional speed, and a 40-pocket side-mount tool changer.
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Author
Celia Cadwallader
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