MacKissic Mighty Mac Chipper Shredder

I bought a Mighty Mac shredder/chipper about 25 years ago, have used it -- heavily at times -- all these years and, with a few engine repairs and turning the shredder blades around once (they are 2-sided), it's worked flawlessly on our 1/2-acre homestead. This is a "hammermill" chipper with free-swinging hammer blades for the top-feed hopper, as well as a chipper, a side feed where you put in larger branches (it will grind up a 2x4) at a 90-degree angle to the balanced flywheel blade that runs on the same axle as the shredder blades. If you get one of the bigger professional type units you don't need a separate grinder, but for home-style operation, I wouldn't fool with any of the lower-cost feed-it-in-the-top units. You don't really need to shred stuff like oak leaves (they compost nicely as is), and the smaller shredders tend to choke on stuff such as 1-incg diameter branches. This unit has changeable screens so you can adjust from fine to coarse output.
Be aware: these are dangerous tools. If you get careless and push down on brush in the hopper and get a sleeve caught in the blades, you'll end up with a mangled (or no) hand. See the simple 2x4 pusher tool below for pushing stuck vegetation into the blades. I also use a Collins machete for chopping up branches for easy feeding and of course -- Grandma speaking here -- goggles (chips fly), earphones, and gloves.
Mine (depicted above) has a 7HP Briggs and Stratton motor. The current models have a 10 HP. I wouldn't bother with the electric starter; the rope pull works fine.
-- Lloyd Kahn
MacKissic Mighty Mac Chipper Shredder - 12PT10
$1900 (includes shipping)
Available from The Lawnmower Shop
Manufactured by MacKissic

Pusher safety tool made from 2X4: cross piece an inch or so narrower than hopper's bottom opening (9-1/2"), screwed on to a 21" handle

Favorite (15)






Mike Christensen
I have the same modle as above, just bought and it looks like new. Do you have an owners manual? Can I get a copy of it? I would like to see how the hammers can be changed around. Thanks, Mike
John Hotaling
I have a Mighty Mac Mdl#TPH-12, with 3 point hitch I would like to know if there is an owners manual available and how could I get one. Thanks John
Harry Payne
I have a Mighty Mac Chipper/Shredder Module 12PT/PT. I bought it about a year ago and love it. I'm trying to get an owner's manual if it exists.
Thanks,
Harry
Pete Childs
We just bought a used "hammermill" compost shredder/grinder
(ser. #820A57131) with the top-feed hopper and a side feed. It looks like the one pictured above. Is there a way to get an owners manual? We want to see if there are screens available and also some directions on how to turn the blades around.
I hope you can help us and appreciate anything advice you can give.