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Air cylinder and solenoid setup

Air cylinder and solenoid setup

Air cylinder and solenoid setup

(OP)
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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