Earthmoving machinery washing

We are renting equipment here in Europe , we have only one yard and a lot of machines going in and out everyday , at the moment we clean by a simple hot water pressure washer , we spend a lot of time washing , do anybody knows about a wash bay system to reduce manpower time. we rent from 1 T excavators to 90 T excavators , most of the machines coming in and out are of course 1 to 20 T machines

Wheelloaders and excavators .

Earthmoving machinery washing