Homemade dingo brush cutter

[Msc2177]

I am building a 42" bush hog for my dingo tx425. It will have a 5.9 ci hydraulic motor
Going thru a 40 hp 1:1 gearbox.

 

[Msc2177]

A few more pics. I put hinges at the top of quick attach for mowing up slopes

 

[stuckmotor]

Cool! What hydraulic flow rate does the motor require?

 

[Brad_Blazer]

Pretty sweet so far. Are you going to have a pair of castors or skids at the front to limit the cut?

 

[Msc2177]

It is rated for 15.8 but my machine only puts out 11gpm. It should still turn 550rpms

 

[DT86]

Looks great! I've never seen a mower on a Dingo or the like but it looks like a great idea. Just don't hit any yellow jackets.

 

[Msc2177]

I will put 3" flat bar along the bottom for skids. Not sure if I'll need the castors yet.

 

[Arc weld]

Will you need to install a hyd. oil cooler for continuous operation?

 

[Msc2177]

I don't believe I'll need an extra cooler. A lot of dingo attachments are built for continuous use. It has a cooler now with an electric fan mounted to it.

 

[Scooby074]

nice project :thumbsup:

 

[stuckmotor]

It is rated for 15.8 but my machine only puts out 11gpm. It should still turn 550rpms

Thanks. I asked about the flow because I'd like to have one on the side of my MF. Maybe one day…

 

[Msc2177]

The motor I bought from amazon. It's built by dynamic. $179.00

 

[Arc weld]

What pressure is the motor rated for? I know some hydraulic motors are only rated to around 1200/1500 PSI and the high pressure motors are quite a bit more expensive. With a 1-1 gearbox is 550 RPM's enough? A brush cutter is a pretty heavy load on a machine. All the brush cutters made for skid steers require high flow and usually high H.P. hydraulics with higher pressure as well. I hope it works for you when it's finished.

 

[Renze]

I want to build a PTO brush cutter myself... nothing available second hand here in Holland so i'll have to build my own...
But first i have to finish many other maintenance and repair jobs... Let us know how it performs, i'll allways learn from it

 

[Msc2177]

What pressure is the motor rated for? I know some hydraulic motors are only rated to around 1200/1500 PSI and the high pressure motors are quite a bit more expensive. With a 1-1 gearbox is 550 RPM's enough? A brush cutter is a pretty heavy load on a machine. All the brush cutters made for skid steers require high flow and usually high H.P. hydraulics with higher pressure as well. I hope it works for you when it's finished.

The motor is rated for 2575psi. I converted a bush hog sq48 to hydraulic a few years ago. Using the same style motor mounted on a mini ex. It's been worked hard and never give any trouble

 

[Ken45101]

What pressure is the motor rated for? I know some hydraulic motors are only rated to around 1200/1500 PSI and the high pressure motors are quite a bit more expensive. With a 1-1 gearbox is 550 RPM's enough? A brush cutter is a pretty heavy load on a machine. All the brush cutters made for skid steers require high flow and usually high H.P. hydraulics with higher pressure as well. I hope it works for you when it's finished.

I have a Brushmonster cutter on my skid steer that is designed for standard flow. It works fine.

 

[Msc2177]

Here are a few more pics. I got the skids welded on. I also put in the reinforced plate to mount gearbox

 

[lumberjack1986]

Nice project! I have thought about doing that in the last, never got to actually doing it though.


Btw...
11 gpm x 231 cu in/gallon / 5.9 cu in motor= 431 rpm with no losses.

 

[J_J]

You are only turning 446 rpm using 11.4 and 5.9 cu i motor, and 1 : 1 gear box..

Don't believe that is enough rpm as most bush hogs are 1:1 to 2.5 ratio.

Close to 1000 motor rpm would be better.

Try and get about 12,000 to 14,000 fpm

 

[Sysop]

Very neat job on a very neat project, looking good!