Push button actuator force

Thread Starter

Andersons

Joined Sep 28, 2019
25
Hello, I’m searching for a small (on)-off push button switch with 20N or more force required for actuation, where can I find such a switch?
 

Tonyr1084

Joined Sep 24, 2015
5,688
If you mean 20 Newtons of force - that's roughly 4 1/2 pounds of force. That seems like a lot of required force to actuate a switch. Sorry, I don't know where you can find such a switch unless you want to find some sort of pressure switch. Of course you could get a spring with the force you want and place a switch at the bottom of it. The plunger of the switch would stand inside the spring. When the weight requirement is reached the switch will activate. I would also suggest a pressure limit - or bump stop so you don't inadvertently overly stress the switch with too much force.
 

Reloadron

Joined Jan 15, 2015
5,781
Look to manufacturer's data sheets, names like Cherry Switch, NKK Switch, C&K Switch, Grayhill and others come to mind. Look in their data sheets for "actuating force" and I have to agree if you rae talking 20 Newtons is a pretty heavy push button switch considering that is 4.5 US Lbs and push button switch activation force is normally measured in fractional parts of one lb but some I have seen at a little over maybe 2 Lbs.

Ron
 

DickCappels

Joined Aug 21, 2008
6,954
If it really is 20 newtons, then it sounds like a foot switch?
Agreed. Try looking in an automotive supply store that specializes in parts for really old cars. My dad's 1951 Ford had a switch like that for dimming the headlights lights. That was before they started mounting controls on the steering column.
 
Top