Getting back to the thread of the original post, it could be argued that a portable can be more powerful than a truckmount
:
Firstly, IMO, a T/M will always outperform a portable, but what I have to say is interesting. Last year, when I had nothing better to do
I worked out the vacuum in Air Watts for a high end portable and a "starter" T/M. Air Watts are generally considered to be the most valuable method of truly calculating a vacuum's true potential (on paper at least)I used figures that are widely available in various brochures. The portable was AO with 3x3 stage vacs. It produced more AW's than than the T/M. With portables typically capable of delivering psi that is in excess of what's needed, the greater psi of a T/M is not usually required. So, there's an argument that a portable is more powerful than a T/M
In reality, because the blowers and fans are engineered and work in different ways, the blower will always realise more of it's potential, so will actually out perform a more powerful porty.
For those interested,
Air Watts = lift(Hg)xCFM '/. 8.5
and for inches of water lift and Mercury lift Hgx13.5
Safe and happy cleaning
Ken