Technical Summary

If construct machine with the view to tact time less than 1 second with cylinder or AC servo actuator, it is difficult to synchronize or it may be impossible to maintain stable condition for long term even if keeps good condition when installed new machine.  Then, cylinder reaches end of its running distance in a short term, therefore it has a short maintenance cycle.  In machine constructed cam mechanism, it is able to settle such problem because all driving is held by minimal motor.