... and 'typical time' for one diameter can of course be somewhat manipulated (or vary) depending on one, or several in combination, of:
-actual torque -> selection of actuator size
-air pressure
-airline pipe diameter and length
-solenoid valve diameter (capacity, Kv)
-throttle valves on solenoid outlets/inlets (if allowed by construction of solenoid valve)
-throttle valves on actuator
-actuator air inlet and outlet diameter and inside construction (length and diameter of inside air tubing)
-actuator size, type and producer
Both short operating time (for instance emergency shutdown) and prolonged (as long as practically limited by equipment) can be 'engineered' by above.
Time limits for control circuits automatically acting on signals from air actuators limit switches therefore either to be given 'ample time' ot to be tested at site if critical for next step.