Powerful High-Productivity HMC

Haas Automation’s (Oxnard, CA) newest horizontal machining center—the EC-550—represents the latest expansion of the company’s rugged line of high-productivity HMCs.

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Haas Automation’s (Oxnard, CA) newest horizontal machining center—the EC-550—represents the latest expansion of the company’s rugged line of high-productivity HMCs. The EC-550 features a 30" x 34" x 32" work envelope, 50-taper geared-head spindle, dual pallet changer with 550 mm pallets, 50-pocket side-mount tool changer and a built-in 1-degree pallet indexer. The EC-550’s standard geared head couples the motor directly to the spindle through a Haas-built, high-precision gearbox. This smooth-running system is very efficient, and offers tremendous thermal stability. The two-speed gearbox provides 450 ft-lb of torque for heavy material removal, and speeds to 6,000 rpm for finish cuts. For high-speed work, an optional 10,000-rpm inline direct-drive spindle is available. Driven by a 45-hp vector dual-drive system, this spindle yields 170 ft-lb of torque at 1400 rpm, and a peak power rating of 60 hp at 7000 rpm. Each of the EC-550’s pallets handles a 2205 lb load, and the servo-driven pallet-changer swaps pallets quickly. A separate, protected load station allows the operator to safely load and unload parts or change fixtures on one pallet, while parts are being machined on the other – keeping spindle run-time at a maximum. For long-cycle production with minimal downtime, the EC-550 is equipped with a large-volume coolant tank and a high-capacity belt conveyor for efficient chip removal. Also standard are 710-ipm rapids, a 15" color LCD monitor with USB port, 1 MB of program memory, a flood and washdown coolant system and a programmable coolant nozzle. High-productivity options for the EC-550 include a 10,000-rpm spindle (described above), a full 4th-axis, a 72-pocket side-mount tool changer, high-pressure through-spindle coolant, a wireless probing system, high-speed machining software and more.