What do you this rock weighs?

   / What do you this rock weighs? #31  
Hello,

I don't trust myself making guesstimates about weight of objects, that's why I'm attaching some photos of a rock I was moving with my Kubota BX24. There is a picture that shows the whole tractor with the rock hanging from a dynamometer, a picture of just the rock and dynamometer, and a picture of the reading on the dynamometer.

I am able to zoom in on the dynamometer in the picture that clearly shows the rock hanging from it to see the exact weight. I hope the quality of the attachments will still allow this.

For all those wondering how powerful a BX24 is, these pictures are clear proof of the power...I am constantly surprised and always proud of my BX24.

Back to why I am posting these pictures:

1) We all love to see the pictures (I would like to say I always remember to take before, during, and after pics...but like most of us, I don't always do it and always wish I did)

2) It's always nice to have a definitive reference point and I think these pictures do that

3) The rock in the pictures weighs 1200 pound, this dynamometer has 50 pound divisions. You can see and count the lines for yourself by zooming in, or just look at the close up of the dynamometer to read any markings (even words) on the face)

4) I didn't have a ruler in the picture but the tractor can give some reference to the size of the rock. I know this rock is smaller than yours but the density has a chance to be the same (it's in NH, the Granite State) . I know that doesn't mean it is but that is one very dense little rock.

Anyway, you ask what I think it weights? I'm going to agree with the calculations you have made base on rock density and your knowledge of your tractor's power.

I like that you calculated a low and high range. These pictures should help you feel confident about that weight range for the size of your rock.

~Steven
 

Attachments

  • BX24_rock_backhoe_3.jpg
    BX24_rock_backhoe_3.jpg
    857.8 KB · Views: 208
  • rock_dynamometer_backhoe_3.jpg
    rock_dynamometer_backhoe_3.jpg
    599 KB · Views: 200
  • close-up_of_dynamometer_shows_1200_pounds_2.jpg
    close-up_of_dynamometer_shows_1200_pounds_2.jpg
    996.9 KB · Views: 192
   / What do you this rock weighs? #32  
Many thanks for posting the information.:D It gives me a different perspective about rock weight and handling.:D :D
 
   / What do you this rock weighs? #33  
To determine irregular volume, see how much water it displaces. You could drop it into a large plastic trough and see how much water moves into your over flow.
 
   / What do you this rock weighs? #34  
EdC said:
If the rocks aren't too far try skidding them with a stone boat. I think it was Bird that said he used (or saw being used) a hood from a car to skid rocks. You'll probably be able to move rocks quite a bit larger than the one that was keeping your three point busy.

Doesn't this ruin the paint on the hood?
 
   / What do you this rock weighs? #35  
Detroit Tom

It does mess up the paint a little but just get the right color touch-up and a roller and you're good as new:D

A769259, Jeesh, now I have t add a load cell to the liat.:)
 

Tractor & Equipment Auctions

1827 (A51248)
1827 (A51248)
Homemade Flatbed Tilt Trailer (A50322)
Homemade Flatbed...
2023 JOHN DEERE 8R340 LOT NUMBER 205 (A53084)
2023 JOHN DEERE...
1999 Case 850G Crawler Tractor Dozer (A51691)
1999 Case 850G...
UNUSED X-STAR 101" X 25' BRIDGE PLATFORM (A51247)
UNUSED X-STAR 101"...
JOHN DEERE HX14 LOT NUMBER 261 (A53084)
JOHN DEERE HX14...
 
Top