I have several large rocks and would like to know if anyone knows a simple formular to approximate the WEIGHT of the rock/boulder by a length x height x width formular, I live in New York State and the boulders are typical for this region in material composition
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Loader lift capacity
- Thread starter earthly2
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timb
Veteran Member
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- Deere 4710/reverser, JD 318 (still needs TLC), JD LT160
Here's a site with a simple list covering a lot of materials you might (and a lot you probably won't!) pick up with your loader.
Material Weights
Example - a bolder roughly 2x2x2 feet (8 cubic feet) could weigh anywhere from just under 1200 lbs (sandstone) to nearly 1400 lbs (granite).
Material Weights
Example - a bolder roughly 2x2x2 feet (8 cubic feet) could weigh anywhere from just under 1200 lbs (sandstone) to nearly 1400 lbs (granite).
Thank you Timb for your reply, this information does help.
How much weight can a 300cx loader on a JD 3320 push.????
given a boulder is 8' x 2' x 3' = 48 cubic ft. and approx weight
would equal 48 cubic ft X 168 lbs = 8,064 .lbs.
Can the loader push this boulder???
Thank you again for your help
How much weight can a 300cx loader on a JD 3320 push.????
given a boulder is 8' x 2' x 3' = 48 cubic ft. and approx weight
would equal 48 cubic ft X 168 lbs = 8,064 .lbs.
Can the loader push this boulder???
Thank you again for your help
Woody_NH
Silver Member
My 3320 with 300cx loader and ballast box won't push an 8,000 lb rock around on my lot. Here in NH I have some uncleared land with many such rocks, uneven terrain and many trees. If I wanted to clear an acre as you do, I would hire an excavator to move the larger rocks and get the stumps out. Then I would use my tractor to clean-up and level the area.
timb
Veteran Member
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To quote Capt. Brody from "Jaws"...
"You're gonna need a bigger boat"...
er... "tractor".
/forums/images/graemlins/tongue.gif That's a big pebble.
"You're gonna need a bigger boat"...
er... "tractor".
/forums/images/graemlins/tongue.gif That's a big pebble.
Jrrcorp
Silver Member
Just as a general guideline, assume you could move, push about a 1000 lb rock. Up hill, down hill, type of terrain, etc. all play a part. An 8000 lb load, now really, you need a dozer not a tractor.
rancar
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Thanks for sharing this link Tim....very helpful.
...Bob
...Bob
Renze
Elite Member
I think you shouldn't try to LIFT a heavy rock...
As a rule of thumb, a tractor can push its own weight, on level, firm ground.
You can increase the push capacity by either ballasting the tractor (this will increase the pushing capacity by the same factor as your ballasting)
or: by lifting the load partially, in other words, transferring weight from the object to be moved, onto the (driven) tractor axles. This works double: the weight transferred increases the push of your tractor, and decreases the load to be pushed /forums/images/graemlins/wink.gif
As a rule of thumb, a tractor can push its own weight, on level, firm ground.
You can increase the push capacity by either ballasting the tractor (this will increase the pushing capacity by the same factor as your ballasting)
or: by lifting the load partially, in other words, transferring weight from the object to be moved, onto the (driven) tractor axles. This works double: the weight transferred increases the push of your tractor, and decreases the load to be pushed /forums/images/graemlins/wink.gif
I think it may be more accurate to say a tractor "can push NO MORE than its own weight..."
This is assuming perfect traction. On dirt or turf, you are going to be about 1/2 of that.
Add any incline, and the maximum drawbar force starts to come into play (max torque in lowest gear).
Add loose dirt, snow, or worst case, loose sand, and you are going to use up tractive force and torque just moving on the soft surface. Rolling a wheel through loose sand, for example, can be similar going up to a 20 to 30% grade!
I do aree with the partial lifting concept, though. Even of the loader can't lift the object at all, by having a constant lifting force, you are transferring weight from the object to the tractor's wheels.
- Rick
This is assuming perfect traction. On dirt or turf, you are going to be about 1/2 of that.
Add any incline, and the maximum drawbar force starts to come into play (max torque in lowest gear).
Add loose dirt, snow, or worst case, loose sand, and you are going to use up tractive force and torque just moving on the soft surface. Rolling a wheel through loose sand, for example, can be similar going up to a 20 to 30% grade!
I do aree with the partial lifting concept, though. Even of the loader can't lift the object at all, by having a constant lifting force, you are transferring weight from the object to the tractor's wheels.
- Rick