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Air cylinder and solenoid setup

Air cylinder and solenoid setup

Air cylinder and solenoid setup

Not sure if this is the right place to ask this or not, but figured I would give it a shot.

We are setting up a semi automated spray booth at my company (small company so I am doing it myslef)to spray RF absorbers which we make.

I purchased a 6' long rodless air cylinder similar to the one below

which will support the spray head/atomizer.

The question is I am having a hard time figuring out what type of switches to use and how to do the wiring.  The air cylinder has a magnet in it so a reed switch seems to be the way to go.  We want the trolley to travel to the ends of the rail so i imagine putting the reed switches where they trigger when the trolley gets to the end of its run.  Then I want it to reverse direction and do the same thing at the other end.

I am new to pneumatics so I dont know what sort of a solenoid I should use.  I am pretty sure that I need a 4 way 2 position solenoid but am unsure if i should use one with a single solenoid and spring or dual solenoid.

Here is a pic of a dual solenoid

The more I think about it the more i think the dual solenoid would be the way to go.

Is my following logic correct given the following configuration:
Dual solenoid is plumbed as follows
In: from air regulator
Out: nothing... exhausts into room
A: plumbed for right to left motion
B:plumbed for left to right motion

The solenoid which activates left to right motion is wired to the reed switch 1 on the left side of cylinder

The solenoid which activates right to left motion is wired to reed switch 2 on the right side of the cylinder

Say the trolley starts out with path A  (R to L) active it passes by the reed switch 1 firing the solenoid to activate path B.  Then travels L to R activates reed switch 2 and the whole thing repeats???

In order to reduce any shock hazard I am running 24V DC solenoid/transformer etc.

Should the solenoid wiring be as follows
- from 24v transformer to reed switch 1 then to solenoid activating path A
- from 24v transformer to reed switch 2 then to solenoid activating path B
+ from all solenoids to + on transformer

Is this correct or am i way off?

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