3v0
Platinum Member
I have been reading about this here and else where. Everyone talks about it but I did not see any numbers.
Math was never my strong point so I hope I got this right.
Lets assume a small tractor loader like used on a Kubota BX is 60 in from the rear pivot pin to the bucket. The lift spec is 500 lbs. This gives us 500 * 60 or 30,000 in lbs of torque at the arm pivot. This figure will stay the same.
Now lets extend the lift point by 6 in to 66 in by attaching a quick attach setup. Our new lifting capacity will be 30,000 in lbs / 66 in or 454.5 if we ignore the weight of the adapter. 454/500 is 90%. This also makes sense in that we increased the distance by 10% so the drop in lift capacity is 10% but we should also lift 10% higher.
But add the weight of a 70lb adaptor and we are down to a 385.5 capacity or about 77% of what we started with.
I need to get the tape out tomorrow and see what the actual length of the loader arm is.
Math was never my strong point so I hope I got this right.
Lets assume a small tractor loader like used on a Kubota BX is 60 in from the rear pivot pin to the bucket. The lift spec is 500 lbs. This gives us 500 * 60 or 30,000 in lbs of torque at the arm pivot. This figure will stay the same.
Now lets extend the lift point by 6 in to 66 in by attaching a quick attach setup. Our new lifting capacity will be 30,000 in lbs / 66 in or 454.5 if we ignore the weight of the adapter. 454/500 is 90%. This also makes sense in that we increased the distance by 10% so the drop in lift capacity is 10% but we should also lift 10% higher.
But add the weight of a 70lb adaptor and we are down to a 385.5 capacity or about 77% of what we started with.
I need to get the tape out tomorrow and see what the actual length of the loader arm is.