Question 1

How strong is push strength at 125psi?

Accepted Answer

You can convert the metric values over but this is what I come up with - Max pressure rating 1 MPa or 145 psi.  
Max force rating 70 Kgf or 154 pound feet of force.
You can also calculate this by the cylinder diameter and the psi you are operating it at - 1 1/4" bore with 120 psi - 1.25"x120psi=150

Question 2

Type of compressorwould this type of compressor work with this? https://www.amazon.com/topdc-compressor-inflator-motorcycle-basketball/dp/b082f5p7j5/r

Accepted Answer

The compressor will extend the air cylinder, it just may not do it quickly. The air cylinder requires pressure to push it out/pull it back, and based on the amount of output (cfm) of the compressor will determine the speed at which it can push it. The other factor is how much load or resistance you want to push. If it exceeds the compressor’s upper limit, then it would not be able to move it.

Question 3

Can you stop it in mid stroke and work from there either way

Accepted Answer

We typically operate with a pneumatic solenoid that is applying air to retract (normal position) and upon signal air applied to drive side which moves a table/in-line saw. The 3-way solenoid has constant air on either side, so ours is either extending to limit or retracting home. If you used independent solenoids, then you could stop the drive air mid stroke, although without air on either side the ram is free to move in either direction. To hold position, you would need to apply balanced air on both sides. So yes, it can be done, but not necessarily a simple set up

Question 4

Is the port NPT?

Accepted Answer

No, it's PT1/8

Manufacturer	CHLED
Part Number	SC 32X500
Item Weight	3.34 pounds
Package Dimensions	25 x 2 x 2 inches
Item model number	SC 32X500
Is Discontinued By Manufacturer	No
Color	Silver
Material	Metal
Shape	Rectangle
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Pneumatic Air Cylinder 1-1/4" Bore 19.69" Stroke SC32x500

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