I have the Mackissic made for Gravely attachment. It does an awesome job. You need a commercial or Pro tractor for it. I would not recommend an "L" tractor for this attachment. Mackissic still makes this shredder and someone (don't remember who) said Mackissic would make more if they could get an order for 12 units. They won't make one. If you are going to try and retro fit one yourself buy the Mackissic 12p/pt/pte and copy the Gravely attachment design. Mine is the newer model with the front swivel wheels. The earlier model had skids out front. The wheels are better.http://www.mackissic.com/HSC_12P.html - Kris :rauch10:Has anyone on this board made one or converted one to work on a Gravely walk behind? I am interested in a chipper/shredder for my gravely but they seem pretty rare here in WI. If you have made one can you post pictures?
I don't have a pic from underneath but it is a belt drive. If look closely at the middle pic you can see the top pulley with the belt on the left side. There is a schematic of the early one here: http://www.oldgravelys.net/pdf/MacKissic_Attachments.pdfWow - that's a gorgeous looking unit.
I'm more familiar with the older units, which had the Gravely PTO attach to a wheel-driven [rubber] pulley belt.
Yours almost looks like it's a direct drive [?!?].
Can you get a photo from the ground looking up at the drive?
Is there any pulley belt rubber at all?
Or is it only metal gears?
Carlisle 18X9.50x8That is a great looking unit, I also like the larger tires. What size are those? I am thinking of putting an ad on the local craigslist to see if I can get a chipper/shredder with a bad engine that I can convert to run off my gravely. I have a commercial 12 with a fresh .020 over rebuild, so it should have enough power to handle most of what I might find on CL.
Wonder who built it?I know this thread is old, but I came across these pix of a chipper. Thought it might be of interest to someone.
Looks well built.