Function of Rasterization

Sorry, i didnt know I can insert video to here. I use the following file as an example

to get rid of the clipping mask, I do the following process:

object > Rasterize >Gray scale 2400DPI> make and expand> click magic wand tool> hit delete

but then the rasterized image transform and move. i could move the image back but cannot improvement the transform. The application is meant to be a very accurate one, but the transform and movement came to be a big issue.

My understanding is that both original and rasterized image are vector graphic. the only different is the clipping marks.

Is there any way to just remove the clipping marks (cannot change the image itself) without rasterizing?

FYI:

1. I am using CC15.

2. I tried using CS 4.  It solved the movement issue but the image still transform.

3. if I enlarge the image by 10X, the result of rasterizing improved but not perfect

4. I am providing a training for some basic workers in a plant. So will have provide a very simple solution.

I wonder if you have to send separations to the platemaker?  Perhaps it is restricted to receiving high res .tiff files?  Are you using a RIP in this process?  Many questions here.  Did you just start this new job or have you incorporated some type of new technology with and research and development?

I don't understand this workflow or the question at all.