boom mower on backhoe... electric motor?

[sikboater]

I would like to make a small boom mower for my backhoe but don't have enough hydraulic flow to run a mower...

I was thinking you could put a generator in the bucket and convert an old 20 inch mower to use an electric motor to run the cutting blade. Then run an cord from the generator to the motor...

Of course it would not cut real fast or thick grass or brush, but might work well for off angle mowing the ditches.. Was thinking of trying an old washing machine motor...

Any thoughts? What would be a good electric motor for this?

Thanks

Tim

 

[not2old]

If I was considering this, I'd look into using the original gas motor. I assume you are trying to do this on the cheap. Where are you going to get an electric motor and generator anywhere near the power of one of the gas engines? 3.5 to 7 HP.

 

[sikboater]

I originally thought about using the motor on the mower, but was worried about the angles and a 4 stroke motor (oil starvation).... I thought (and probably wrong) that even a 1 HP motor that had a high enough RPM might do the job. The torque on electric motors is pretty high....


Just kinda throwing it out there to see about opinions.... Thanks!

 

[PapaPerk]

You may look into a lawn boy mower engine. I know they are 2 stroke so angle would not bother there oiling system... because there is none! :laughing: The carb may have trouble though... not sure.

Have you thought about using a heavy duty weed eater and just mount that to the bucket? They make them that turn metal blades.

 

[J_J]

Just how many GPM does your tractor provide?

These grass cutters use about a 3 to 5 cu in hyd motors.

How about something like this.

 

[Kevin M]

This isn't impossible, But I got some questions for you ? #1 Is your backhoe using the power beyond , or does it have a separate PTO pump ? If its using the power beyond your in luck ! Just use the PTO to run the system for your hydraulic mower. Those parts aren't gonna be cheap though.

 

[sikboater]

I have a woods ground breaker 6500 and it runs with a PTO pump (~10 gpm from what I can find) and the tractor (MF 1240) has one that is only ~6.5 gpm. I know I can add remotes and probably run the Backhoe from there but it is not currently set up, would have to buy the parts. Could be done, not sure if it is worth the cost.

I looked online for a 2 stroke motor lawn mower and have not been able to find one (even used). I was thinking if an electric lawn mower can cut grass, why not put one on the end of the Backhoe (with a larger motor) and try it.

Thanks for everyones ideas!

Tim

 

[LBrown59]

The only problem with your idea is you have to lower the
stapleizers to operate the BH.
How do you drive the tractor with them down on the ground

I have a woods ground breaker 6500 and it runs with a PTO pump (~10 gpm from what I can find) and the tractor (MF 1240) has one that is only ~6.5 gpm. I know I can add remotes and probably run the Backhoe from there but it is not currently set up, would have to buy the parts. Could be done, not sure if it is worth the cost. Tim

 

[slowzuki]

Yeah I was gonna say, driving next to a bank with the backhoe boom extended downhill is bad news. The electric motor won't cut very fast, even the electric lawnmowers are about 2 hp and they barely cut lawns. You need about 3500 watts of generator to run a big electric lawnmower.

You can buy old mowers on craigslist for 25-50$, just overfill with oil and use em.

 

[jenkinsph]

I would like to make a small boom mower for my backhoe but don't have enough hydraulic flow to run a mower...

I was thinking you could put a generator in the bucket and convert an old 20 inch mower to use an electric motor to run the cutting blade. Then run an cord from the generator to the motor...

Of course it would not cut real fast or thick grass or brush, but might work well for off angle mowing the ditches.. Was thinking of trying an old washing machine motor...

Any thoughts? What would be a good electric motor for this?

Thanks

Tim

I would be inclined to build something along the lines of JJ's post. Notice the lighter boom and counterweight setup.

Have you considered a used sickle bar? Might be the easiest and cheapest way to go.