I would argue that the rpm issues mentioned above are irrelevant. Rpm is not the issue. It's velocity. Work out the velocity the bristles on a 19 inch brush move over the carpet by using the Rpm 150 and the circumference of the brush. The do the same for the Karcher machine. I wouldn't think there is too much difference in the two.
! ! ! ! 8) ANORAK ALERT 8) ! ! ! !
15" rotary at 180rpm has a circumference of 1.2m which means a velocity of 3.6 metres/sec at the outer edge.
Assuming brushes on the karcher machine are 6", they have a circumference of 0.47m and a velocity of 5.5 metres/sec at the outer edge
The karcher's brushes are roughly 50% faster moving than a rotary.
but that proves nothing! The pressure will affect what's happening.
Also, there are loads more factors but I'm starting to bore myself now so I'll shut up :)
I would argue that the rpm issues mentioned above are irrelevant. Rpm is not the issue. It's velocity. Work out the velocity the bristles on a 19 inch brush move over the carpet by using the Rpm 150 and the circumference of the brush. The do the same for the Karcher machine. I wouldn't think there is too much difference in the two.
! ! ! ! 8) ANORAK ALERT 8) ! ! ! !
15" rotary at 180rpm has a circumference of 1.2m which means a velocity of 3.6 metres/sec at the outer edge.
Assuming brushes on the karcher machine are 6", they have a circumference of 0.47m and a velocity of 5.5 metres/sec at the outer edge
The karcher's brushes are roughly 50% faster moving than a rotary.
but that proves nothing! The pressure will affect what's happening.
Also, there are loads more factors but I'm starting to bore myself now so I'll shut up :)
You really need quantum theory to nail this one. ::) Do you want to kick it off. If so I'm going to grab my coat ( nice blue anorak) and get out of here. :)