Need ID for these track maintenance machines.

[Rick A]

I saw these 2 machines on the tracks nearby today and although I'm assuming they are for track maintenance, I would love to know for sure. One had some kind of clamping device that would drop down and come together over something on the ties. I think.

 

[bcp]

Looks like the second one:
https://www.nordco.com/products-cat...clip-machines/spring-clip-applicator-ncsa.htm

Bruce

 

[Rick A]

Thanks. That must be it.

 

[Kmaster2007]

Those are track cars. Any unusual trains like that are most likely on the MOW team