A cell based scara robot traverses along the length of the work cell to move parts from one machining centre to the next. The machining cycle time is relatively long which relaxes the time required to move from one machine to the next. A vector motor is used to position the robot in the desired location.
Placing and removing parts from the machine is more time critical. Servo motors are used to deliver the shortest change cycle thereby ensuring that the machine spends more time machining and less time sitting idle.