Loader Specs

[Guesseral]

I'm not even close to having any mechanical engineer background, but.......the variations could be due to the design and target buyer by the manufacturer. It seems to me that the geometry of the hard parts, the size of the hydraulics etc. could produce some variation in rating even if there was some "standard". The design/dimensions of the tractor could create some geometry differances. The manufacturer probably targets the use his buyer would expect. Thus the differances.
Just a thought.

All good points.

 

[LD1]

Everything comes into play on the slight differences.

Cylinder angle, cylinder size, tractor psi (even 50psi makes a difference).

Then there are things like total weight of the loader, weight of the bucket, and how that weight is proportioned in relation to pivots.

All subtle differences, with the length (leverage), can make big differences in the numbers.

And here's another question, when you get a "pin" rating, is that with a bucket attached?? Cause a 300lb bucket forward of the pins might make a 400 lb difference in what "can" be lifted at the pins.

 

[Guesseral]

Everything comes into play on the slight differences.

Cylinder angle, cylinder size, tractor psi (even 50psi makes a difference).

Then there are things like total weight of the loader, weight of the bucket, and how that weight is proportioned in relation to pivots.

All subtle differences, with the length (leverage), can make big differences in the numbers.

And here's another question, when you get a "pin" rating, is that with a bucket attached?? Cause a 300lb bucket forward of the pins might make a 400 lb difference in what "can" be lifted at the pins.

Again all good points! That is why I left it open and in question form.

 

[Grandad4]

+1 Lift specs alone don't tell the whole story.

 

[Turbys_1700]

The specs are a good guesstimate of what you can lift...
The main thing is for the loader to be matched to the tractor and most all of the manufacturers have done a really nice job of doing that...
I bought my STOL FC350 loader for my 1720 couple years ago and even the STOL specs are different from the owners manual versus the on-line specs...
Best I can tell the loader is rated to lift around 1240# at the pins at full extension...
That is at a psi of 2450#...
Just for comparison my NH 1720 is rated at 2150 psi so my theoretical lift would be around 1100# give or take...
Couple weeks ago I was over at the Optimist Park spreading rock dust on the fields and was loading a full bucket...
I found out that I could curl the bucket full but had to back out to lift it...
This was a rounded bucket and I could lift it to the full height of the loader...
Doing the math a cubic yard of rock dust weighs 2700#...
The bucket on my STOL FC350 is 1/3 cubic yard which equates to 900#...
If you add 200# for the bucket I am at 1100#...
Pretty close if you ask me...
And a good match to my tractor...