# I want to use a 12v dc actuator to make a can crusher.

#### bkhood1991

Joined Feb 9, 2016
29
Hi I am wanting to make a can crusher. I want to use a 12v dc actuator. I want it to simply crush the can and automatically retract back and keep going until you push a stop button. I was thinking maybe some photo eyes and latching relays or even a timer. But I need to know how you would wire this up so it will work right. And I need to convert the actuator 12v to 120v . Any suggestions about how to go about hooking this up. Maybe a step by step

#### ebeowulf17

Joined Aug 12, 2014
3,274
Might need to get more specific to get help. Do you have a specific actuator in mind? If so, more details (amperage, maybe dc resistance and/or inductance) will help. As for the control side, there are many regulars here who can probably help you out, but you need to figure out what you want. Does the optical sensor immediately trigger crushing? If so, is it going to crush someone's hands? Do you want delays before each crush? If it were my project, I'd want less automatic crushing and more safety, but it's your call.

#### Bernard

Joined Aug 7, 2008
5,556
Try: www.surpluscenter.com for linear actuators.12 V DC, 110 lb., 9 in. stroke about

#### bkhood1991

Joined Feb 9, 2016
29
I posted the link to the actuator I need . I just need to know what's next ? You have the actuator ? I need a convert it to 120v . Will I need relays for reversing polarity ?timer? Photo eye ? Ex

Joined Jul 18, 2013
20,898
That is .5"/sec and non-adjustable limit switches so if using these you would need to set the maximum travel for the L.S. when extended.
Max.

#### bkhood1991

Joined Feb 9, 2016
29
how would you wore it up if I wanted to have the actuator fully extend and retract back and keep doing that until I hit a stop button ? Would I wire the actuator to a latching relay to a timer then to another latching relay?

#### bkhood1991

Joined Feb 9, 2016
29
Feel free to call or text if easier .

MOD NOTE: Removed phone number.

Last edited by a moderator:

Joined Jul 18, 2013
20,898
So you want a cycle start P.B. etc then advance until the extend limit switch, then reverse until retract limits switch and repeat, with a cycle stop button included.
Max.

#### bkhood1991

Joined Feb 9, 2016
29
That sounds like it . Where would I wire my convertor into this ? Going from 12v to 120v . Wanting to be able to plug it into the wall

Joined Jul 18, 2013
20,898
First you need to obtain or build a 12vdc supply of a suitable power rating in order to run the motor .
Then you need the circuit required to run it, should be possible with relay logic.
Max.