Here is my story of my discovery of this "make believe" lift capacity ... But to be truthful, all the manufacturers that I know of use "the pins" as a reference point, this helps people compare them ...
Back in 2022 I was new tractor loader buyer ... Here is a picture of the brochure ... Wow! Over 900 Lbs, GREAT!!!
I went to unload a full pallet of wood heating pellets, I knew it wouldn't lift the whole pallet, so I was prepared to restack "some" of them ... But this is all it could lift, and this was as high as it could lift that's 600 Lbs of pellets! What's wrong? !!! (Did Massey Ferguson lie to me?)
I then decided to stack the next load different ... I discovered that I could get one more 40 Lb bag on, but not lift it any higher ...
Then I started reading and researching ...
I weighed my forks - 347 Lbs (Rated for 4000Lbs!)
The hardwood pallet is roughly 50 Lbs ...
So the last picture I was actually lifting 1000+ pounds, but just not very high!
If I had a more compact 1000 pounds, it would be closer to the "pins" and I could lift it higher!
Same as if you take a 10 Lb sledge hammer, picked it up with one hand by the head, stretch out your arm ... Now set it down and grab the other end of the handle, but keep the handle horizontal at arms length ... !