Tractor backhoe - homemade

[BFreaky]

2nd boom assembly

 

[Kyle_in_Tex]

I hope your leg is better.

Good work. Still watching.

 

[4570Man]

Did you end up using the Hardox or is it regular mild steel?

 

[BFreaky]

Wear parts are gonna be Hardox, the rest is S355MC. It will be fine, no worries

 

[Renze]

is it fairly easy to push that sheet of steel around the curve, or did you have to put a pipe wrench on the handle of your clamps ?

And what was the wall thickness of top and bottom plates, 8 or 10mm ?

 

[BFreaky]

It's a small curve but it was quite hard to bend. I have to make a hydraulic shop press...it would come in handy many times. Its 8mm plate, 180 mm width, approx 2 m lenght. Why do you ask? Rk 525 had 10 mm but I think it was too much...

 

[Renze]

Its 8mm plate, 180 mm width, approx 2 m lenght. Why do you ask? Rk 525 had 10 mm but I think it was too much...

I ask because at work, we never work with steel thinner than 15mm in booms. That is, for machines from 30 to 250 ton operating weight

But i am thinking of building my own backhoe as well, the Bobcat attachment i modified for tractor use, is too limited for any foundation digging.

 

[BFreaky]

Well, now I'm sure this is too thick.... What size of bh do you plan to build?

 

[4570Man]

8mm is more than 1/4 thick. I don’t think the boom on my 310 is any heavier. Making a boom ridiculous overkill has no benefits and plenty of negatives. Upwards of 15mm on the boom would result in something his tractor couldn’t even move.

 

[aczlan]

8mm is more than 1/4 thick. I don’t think the boom on my 310 is any heavier. Making a boom ridiculous overkill has no benefits and plenty of negatives. Upwards of 15mm on the boom would result in something his tractor couldn’t even move.

8mm is ~5/16" that's pretty thick.

Aaron Z