No need for timers. Most all actuators are sensitive to resistance. When it stops due to a resistance, it can go no further until dc current is relieved then reapplied, or another dc current the opposite polarity with reverse the mechanism the opposite direction. Most actuators strength is measured in lbs. For a cabinet door application, try looking for an actuator with a minimal lb rating. Probly only need one with a 2" throw. Very small actuator is needed for this app.