Horsepower requirements for Gardner Denver T5CDL9 Blower?

We run the same Gardner Denver blowers here, and some Tuthill blowers as well. We're using the same PTO box for both blowers. While I can't tell you specifically about the cfm's and HP ratings, I can tell you this much. The Gardner blowers do turn harder than the Tuthills. But they move more air as well. So, on our trucks, with the Gardner blowers, we unload cement at 800-900 engine RPM. Much more than that is really a waste, and I think we would be over speeding the blower at 1000rpm. With the Tuthills, which is what I use, I'm unloading at 1100 and the Tuthill sales rep says it's too slow. But that's where it seems to work the best.

Once I go back to work tonight, I'll see if I can find a PTO part number for ya. We run Chelsea PTO's, so if you're stuck on Muncie, you could maybe cross reference it.

One other thing, we drop the PTO boxes off our trucks every 200k miles and rebuild them. I dunno if it's really needed, but saves in the long run. There's a gear in there that turns all the time, and the bearings go bad. If that bearing fails and makes pieces, you can wipe out the transmission. Now a couple hundred bucks and some time looks like a bargain, as opposed to another transmission and PTO.

Edit to add: there's a nice perk to having a blower on your truck. When you go to the cement mills and a guy gets overloaded, and doesn't have a blower, having one is a good way to make a couple extra bucks .....