Here is a 10' cutter that can be hauled without a permit.I'd opt for the larger 60" cutter. Your tractor is physically big enough to handle it just fine.
No matter what you buy, it will be slower going the first time, but once under control, 5' will likely be faster. Cause once maintained, with a 4' cutter, you will likely be slowing down because of rough terrain or because you are overrunning the cutter and not cause of lack of power. Thus a 5' would be better.
And given your 51" width, a 5' cutter will allow you to actually mow along edges, fencerows, and next to trees.
Alot of people think that if you cannot maintain 5MPH that the cutter is too big. I dont buy into that theory. As long as the cutter isnt too heavy for the machine, go as big as you can. I'd rather run a 8' cutter at 2.5MPH than a 4' cutter at 5MPH. Even though time to cut an acre is the same, going slower makes for a smoother ride. I run a 6' heavy cutter on my 29HP PTO and wish I had an 8'. I have never cut anything that required me to slow down below 3rd gear, and only in the thickest of thick, do I use 3rd gear. But there are a ton of times I have to slow down just cause the rough terrain. If they werent so heavy and unable to trailer without a permit, I'd be looking for a 10' cutter.
The old rule is 5 PTO HP per foot width of a bushhog, so you will be over this with only 20 HP on a 5 ft. I'm not suggesting to not go 5 ft, just that you may have to go slow or take smaller bites like suggested above when you have heavy cutting to do. What weight bushhog is your 3-pt capable of comfortably lifting? If you do opt for a 5 ft, would probably be best to stick with a light or medium-duty for weight considerations.
- Jay
I'd opt for the larger 60" cutter. Your tractor is physically big enough to handle it just fine.
No matter what you buy, it will be slower going the first time, but once under control, 5' will likely be faster. Cause once maintained, with a 4' cutter, you will likely be slowing down because of rough terrain or because you are overrunning the cutter and not cause of lack of power. Thus a 5' would be better.
And given your 51" width, a 5' cutter will allow you to actually mow along edges, fencerows, and next to trees.
Alot of people think that if you cannot maintain 5MPH that the cutter is too big. I dont buy into that theory. As long as the cutter isnt too heavy for the machine, go as big as you can. I'd rather run a 8' cutter at 2.5MPH than a 4' cutter at 5MPH. Even though time to cut an acre is the same, going slower makes for a smoother ride. I run a 6' heavy cutter on my 29HP PTO and wish I had an 8'. I have never cut anything that required me to slow down below 3rd gear, and only in the thickest of thick, do I use 3rd gear. But there are a ton of times I have to slow down just cause the rough terrain. If they werent so heavy and unable to trailer without a permit, I'd be looking for a 10' cutter.