Slim pick-and-place actuator with the Ezi-SERVO II EtherCAT 4X multi-axis drive: stroke (Z), rotation (θ) and vacuum through the hollow shaft in one unit, integrated into the machine control via EtherCAT – for chip mounters, dispensers and inspection devices with limited installation space.
Mechanics
The hollow-shaft motor and ball screw spline are coupled directly – no belts or pulleys, making the unit particularly slim. Repeatability is ±0.01 mm on the Z-axis and ±0.1° on the θ-axis. Sizes 28 and 42 mm with 50 mm stroke and up to 1.5 kg payload; the hollow shaft accommodates Ø6 mm vacuum tubes. A home sensor set (NPN or PNP) is factory-mounted. The actuator is designed for vertical mounting; radial loads are not permitted.
Control
The Ezi-SERVO operates in closed loop: no lost steps, no hunting at standstill, no gain tuning required. A single EtherCAT drive controls up to four axes – i.e. the Z- and θ-axes of two VZR units. This saves drives, cabling and control cabinet space. Integration uses the standard CiA 402 profile; control and main power supplies are separate.
