Homemade atv brush cutter blade RPM???

[cormier]

Hey guys i'm building a homemade 40" 16hp pull behind atv brush cutter. I am going to use it of food plots for deer hunting.It will be cutting some small saplings 1/2"or less but mostly grass. It`s to tight of a trail to get my tractor in their so i`m building a small one for my ATV. anyhow i am looking for the proper RPM the blades should turn so i can figure my belt ratios i need to make cut efficiently?

 

[texasranger556]

I've seen 11-16k feet per minute blade tip speed advertised, work backwards from there. If you anticipate rocks and stumps you'd probably want swinging blades.

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[sandman2234]

I figured 12000 feet per second blade top speed when I built an 8 foot 3 blade mower. I used trailer axle hubs and had 6 spindles made at a local machine shop. Figured I could use the extras for spares. Traded the mower to an electrician so i never got to run it. He was happy with it.
David from jax

 

[bullbreaker]

Swisher Parts - Mower Parts - Replacement Parts | Swisher

also the blades off a Swisher 44 should be very close to specs . These are pull behind brushcutters with similar hp and deck width .

 

[cormier]

Swisher Parts - Mower Parts - Replacement Parts | Swisher

also the blades off a Swisher 44 should be very close to specs . These are pull behind brushcutters with similar hp and deck width .

That is pretty much the same machine i am trying to copy anything between 40" -48".

 

[cormier]

I've seen 11-16k feet per minute blade tip speed advertised, work backwards from there. If you anticipate rocks and stumps you'd probably want swinging blades.

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Perfect thanks the 2nd one 48" shows 914rpm blade speed i can work with that.
Thanks