On Sun, 07 Apr 2013 17:23:59 -0700, Oren wrote:

On Sun, 07 Apr 2013 20:00:02 -0400, wrote:

On Sun, 7 Apr 2013 16:37:07 -0700, "Steve B" wrote:

I need an actuator, but one that is air powered preferably. Instead of the
shaft coming out slowly, I want it to shoot out instantly upon air pressure
hitting it. What are those called?

Solenoid?

...plunger?

A plunger is on the end of a solenoid. The solenoid is the "motor"
that activates the "plunger".