Thorlabs' motorized actuators are offered with varying degrees of travel. Choose from motorized actuators offering 6 mm, 8 mm, 10 mm, 1/2" (12 mm), 1" (25 mm), or 2" (50 mm) of travel. Our selection of motorized actuators include high-load, high-precision piezo inertia and stepper motor actuators as well as DC servo actuators.