Milking Machine question

[Rustic Green Acres]

I got this milker second hand. I am wondering what is the difference between this and an expensive one. If I turn this one up to 10lb of pressure it gives my goats teats a hicky. I tried it out on my hand and the suction is fairly strong, and doesn't change with the pulseing. The vacuum gage goes up and down, but the suction to keep it on the teats feels the same. Do better milkers not suction on as hard?

 

[rachels.haven]

Those will ruin udders. Please don't use it.

My milk machines pulsate and can be adjusted between 12 and 14 psi, but they get breaks between every pulsation. One I built, one I bought so I could learn the concepts before the build. The hantops also look difficult to clean and that can be dangerous for both you and the doe.
Try building one of these. They won't be as cheap, but they are good. Just don't forget to add an ooopise jar/regulator tank to catch milk mist or it will ruin your pump (also might switch the order of pulsator and gauge)

 

[rachels.haven]