The ultimate bush hog

[Soundguy]

Good paint will keep it from rusting too.

Soundguy

 

[sandman2234]

Soundguy,
Your right about good paint keeping one from rusting, but how do you keep the underside painted when you use it every week? I know you did a great job on yours, even the underside, but what keeps brush and limbs and bobwire from scratching the paint off? (I know I am not supposed to cut bobwire, but it does happen! Hot dip galvanize is a chemical reaction with the metal and actually bonds below the surface of the metal. It also cost more than paint, but doesn't usually have to be touched up, or reapplied.
David from jax

 

[Soundguy]

For the price of galvanizing.. I can apply alot of paint, either thru a sprayer.. or a roller.

If I was cutting barbwire frequently.. or brush constantly.. i think I'd paint the underside of the hog with ruberized paint.. like pickup bed coating.. or undercoating. Or if I was on the cheap, I'd get a pail of black asphalt paint and just roll it on. Both of those should last a long time.

When I painted mine, I pressure washed the bottom clean.. in most areas it still had JD green paint on it. I knocked all the loose stuff off, gave it 2 coats of primer, and then a couple coats of paint, plus hardner. So far the underside paint is holding up great. If I have to paint the underside again in a coupl e years, no biggie. The wings are easy as pie.. the center section requires a front end loader and some cribbing.. but again.. all in a days work.. etc..

Soundguy

 

[itsgottobegreen]

Brown MFG Makes the best bush hogs.
Ive got a 672

Brown Mfg Corp Homepage

I will 2nd that. I watched one of their tree cutters working once. It was taking down 4"-6" maples like they where grass.

I have one of their bed edger / trench masters. Its heavy duty and super slick too. Beats a shovel anyday when trenching.

 

[Tom_Veatch]

... going 14,000 feet per second would entail building a cutter that weighs more than a tractor ...
quote]

Not only that, but you're going to have to use some really exotic, high temperature material and/or provide some way to cool it. Otherwise it's going to burn up from aerodynamic heating.

Wow, that's almost Mach 13!!!

At least it's a little less than half the Earth's escape velocity, so you won't completely lose the parts if it comes apart. The orbit will be elliptical and intersect the Earth's surface before it goes all the way around.

Maybe somebody dropped a decimal point, or added an extra zero somewhere??

 

[LeadPoison]

I think 14,000 would be "blade feet per minute (bfm)"

 

[MrJimi]

From the talk we had yesterday afternoon, I think he is into making something like this and if you have a fast connection? make sure you watch the videos
Skid Steer Clearing Mowers - Bobcat Skidsteer Brush Mower Attachments & Accessories

or

Flail Mower is Tractor Mounted

or

Skid Steer 6' Rotary Cutter

Jim

 

[browns40]

OOps, caught!

Blade feet per minute is what I was referring too--guess I went ballistic!

Point was things will hit the inside of any cutter hard & fast.., and how rugged a tool would have to be to avoid deformation with high speed/high mass impacts.

Good eye!

 

[sandman2234]

I think what you mean is blade tip speed. Speed of the tips are faster than the other end, since they are following a larger circle path.
I noticed they last link Mr. Jimi posted has a HD cutter that is sold as hot dipped galvanized.
David from jax

 

[3RRL]

I think what you mean is blade tip speed. Speed of the tips are faster than the other end, since they are following a larger circle path.
I noticed they last link Mr. Jimi posted has a HD cutter that is sold as hot dipped galvanized.
David from jax

Theoretical question then...
Is there anything..can you go faster than the speed of light?
If you spin the hub at the speed of light, how fast are the blade tips going?