204saskman
Gold Member
So i had a thread on this a while ago and i built one but it didnt last long(the test and the squirl cage blew apart. So i have gone back to square one and decided to start over again. Now i recently started a new job and the place i work at has a pretty big scrap/bone/parts yard. Now as i was out there the other day i noticed a air mover(about 20" fan and 12" wide) and it is connected to a 5hp electric motor. Now i was sizing this unit up as it has been demmed scrap(they bought about 6 different sizes before they got the right size. Now my questions are the electric motor is rated at 3490 rpm and my tractor only has 540 rpm. So what my question is, is there a speed increasing gear box(i was thinking of something that is 1-6 increase(540 in and 3240 out.). But i have been looking around and it seems that most of them are lik 40-1 or 20-1 or odd sizes like that. If anyone can point me in the right direction it would be helpful.