Brushogging

/ Brushogging #1  

Jdhager87

Member
Joined
Dec 16, 2017
Messages
36
Location
Cleveland ok.
Tractor
Kublota m6060
Approximately how long to brushhog 35 acres with 65hp tractor and 7’ cutter? Guesstimate.
 
/ Brushogging #3  
Somewhere around 10 hours, at 4mph. That's assuming full 7 foot cut every pass, no doubling back, no over lap, no BSing around. Now, if you can pull off 4.5 mpg average, it will be a bit faster.

I think 4mph is a pretty good number for a field, but if there are obstacles, heavier brush, ect, it could very well be 3 mph, or 14 hours.
 
/ Brushogging #4  
Somewhere around 10 hours, at 4mph. That's assuming full 7 foot cut every pass, no doubling back, no over lap, no BSing around. Now, if you can pull off 4.5 mpg average, it will be a bit faster.

I think 4mph is a pretty good number for a field, but if there are obstacles, heavier brush, ect, it could very well be 3 mph, or 14 hours.
4mph would be too fast for me. I do about 35 in 3 6 hour days. I have 75Hp with 8’ cutter. Impossible to not have overlap and turns etc. This is brush cutting not finish mowing.
 
/ Brushogging
  • Thread Starter
#5  
Somewhere around 10 hours, at 4mph. That's assuming full 7 foot cut every pass, no doubling back, no over lap, no BSing around. Now, if you can pull off 4.5 mpg average, it will be a bit faster.

I think 4mph is a pretty good number for a field, but if there are obstacles, heavier brush, ect, it could very well be 3 mph, or 14 hours.
Kinda what I was thinkin. 12 -15 hrs. Just gitting other opinions. Thanks.
 
/ Brushogging #6  
Somewhere around 10 hours, at 4mph. That's assuming full 7 foot cut every pass, no doubling back, no over lap, no BSing around. Now, if you can pull off 4.5 mpg average, it will be a bit faster.

I think 4mph is a pretty good number for a field, but if there are obstacles, heavier brush, ect, it could very well be 3 mph, or 14 hours.

At 4 mph, and a full 7 ft cut with a field 7 ft wide by 41.26 miles long, it would take 10.34 hours.
 
/ Brushogging #7  
One thing that we can't speak to, is your unproductive time. That's turning, lining up your passes, stopping to 'water the grass', ect; and it adds up more than people think, especially on anything odd shaped.

I would throw a guess out there, that maybe your 85% efficient; so if you are bidding this for someone else; I would use the 14.38 hours at 85% efficient; I get 16.91 hours total job.
 
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/ Brushogging #9  
If you are mowing a unknow field, you may want to double the hours mentioned above in order to have time to react to possible hidden objects. Ken Sweet
 
/ Brushogging #10  
is this for hire or your own? i'm always skeptical of unknown fields, esp hardware w/loaded rear tires.
 
/ Brushogging #12  
Somewhere around 10 hours, at 4mph. That's assuming full 7 foot cut every pass, no doubling back, no over lap, no BSing around. Now, if you can pull off 4.5 mpg average, it will be a bit faster.

I think 4mph is a pretty good number for a field, but if there are obstacles, heavier brush, ect, it could very well be 3 mph, or 14 hours.
4mph brush hogging? That's cooking.
 
/ Brushogging #13  
That math is pretty simple. It also ignores everything that doesn‘t involve mowing in a straight line.
I think it's a good estimator, but yes the shape, condition, and material in the field have a huge influence. As does the skill of the operator.

I think there's a lot of optimistic numbers being pushed so far, I mow a lot of hay and with a 9' cutter mowing flat mostly square fields I'm close to the numbers people are putting up.
 
/ Brushogging #14  
3 mph is my top speed for bushhogging on my land, and that's in the open areas. If I go faster, I'm bouncing all over the place and not comfortable with how quickly things come up that I need to avoid or bounce through. I go a lot slower in the tricky areas.

I'm on a 70 HP tractor with a 12 foot batwing. I own 68 acres, but I only mow areas of it at a time. I've never tried to mow more then 10 acres in a day, I have too many other chores and projects that need to be done. Mowing is how I finish off a day when I have a few hours to do something, but I'm too tired to do anything besides sit in an air conditioned cab.
 
/ Brushogging #17  
I think it's a good estimator, but yes the shape, condition, and material in the field have a huge influence. As does the skill of the operator.

I think there's a lot of optimistic numbers being pushed so far, I mow a lot of hay and with a 9' cutter mowing flat mostly square fields I'm close to the numbers people are putting up.
Agreed. Very optimistic indeed. For me it would be 3 full days and at the end my hour meter would have 18-20 more hours on it. I cut at 2.3 MPH top speed and have to slow down at times. Anything faster is not a good cut and leaves brush clumped and pushed over. My current blades have about 200 acres and So they are sharp…
 
/ Brushogging #18  
So, part of this depends on the material being cut, and also the desired cut quality. If you want to really cut it, or just cut/knock it all down,
 
/ Brushogging #19  
No one asked how tall the field is and that is the one variable that is easily figured in. So, how tall is the material you are cutting. There is a big difference in cutting a field that is 2-3 feet high and one that is 4-5 feet high. Mph will vary greatly.

Also, assuming we are just talking weeds and not bramble, or sapplings?
 

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