The new linear axes series "NS Rotating Nut Linear Actuator" provides long stroke and speed nearly as fast as a linear motor. A maximum speed of 2400mm/s and an acceleration up to 1G is attained through the use of high-lead precision screws (equivalent to C5). Also, since there is minimal impact from dangerous rotation speeds, movement is possible at the maximum 2400mm/s even at the maximum stroke (3000mm), so the cycle time can be greatly reduced. Alltogether payloads of 10 – 80kg horizontal or 6 – 16 vertical are possible.
The actuator structure is that rather than moving the nut in the straight line by rotating a ball screw, the ball screw is fixed and the nut is rotated by a servo motor built into the slider, so the slider moves in a straight line. Because the ball screw does not rotate, the influence of dangerous rotation speeds is minimal and this makes movement at high speeds possible even for long strokes.
For multi-slider support two sliders are set on one shaft and a multi-slider is set to operate them separately. Since this makes it possible for two shafts to operate in the space of one shaft, it has a great effect in saving space and reducing tact time. The "collision prevention function" to prevent collisions between the sliders is standard equipment. A cable track that expands the capacity is available as an option.
The NS high-speed axis combines nut rotation functions with the intermediate support structure that has proven itself in the ISA series to attain a 3000mm stroke, stunning for a ball screw machine. Used as x-axis in 2-, 3- or 4-axes systems, it works smoothly together with other 230VAC linear axes of IAI’s modular construction system (ISA, LSA, RCS2, RS).

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