The spindle is driven by a 35-hp motor and a two-speed gear transmission. Three spindle speeds are available: 4,000, 6,500 and 8,000 rpm. The optional 3,500 rpm, 30-hp horizontal head is equipped with high-precision, hardened and ground spiral-bevel gears. A coolant-through spindle system is available for both heads.
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Standard machine equipment includes a Big Plus CT40 spindle, 15,000-rpm direct-coupled spindle with oil chiller, coolant chip flush system, three color stack light, 24-tool swing-arm ATC, through-ballscrew chiller and preparation for through-spindle coolant (with rotary union).