NACHI sums up the ES series with a cycle time: 0.29 seconds of standard arch motion on the ES06, 0.30 on the ES12 - the fastest figures in their reach class, earned by super-rigid arms under AC servo control rather than by de-rating the payload. Two models cover the range, ES06 from 3 to 6 kg and ES12 from 6 to 12 kg, over reaches of 350 to 850 mm with vertical strokes to 450 mm.

Why does internal wiring matter on a SCARA?

Because SCARA arms live above dense fixtures. The ES series runs wiring and pneumatic tubing internally through to the hand mounting point, so gripper cables never sweep the peripheral equipment around the base - reliability that shows up as fewer snagged lines, and freedom to use the full 360 degree wrist rotation plus the swivel range that reaches the entire periphery and the area behind the arm.

ES06 or ES12?

Reach and mass decide: the ES06 covers 350 to 550 mm with 200 or 340 mm strokes at 36 kg of body weight, the ES12 stretches to 850 mm and 450 mm strokes at up to 69 kg for heavier assembly and handling. Both repeat to plus/minus 0.012 mm combined X-Y, mount on the floor, and share the same AC servo discipline - against lighter cobot-class SCARAs, the ES series argues rigidity first, with the precision to hold 0.004 degrees on the wrist rotation.