Can someone please explain the difference between: 'Lift capacity (500mm fwd., max height) & Lift capacity (pivot pin, max. height)?
Thanks again, Scott
Thanks again, Scott
sxs191
Do you remember your high school physics class when you dealt with forces at various points on a standing beam?...
Basically, you are dealing with changing force vectors based on the geometry of the FEL and where the load is relative to the changing positions of the arms...
Basically, you are dealing with changing force vectors based on the geometry of the FEL and where the load is relative to the changing positions of the arms...
sxs191, I would not factor in what tractor can lift what compared to the other. The factory documents what they feel is safe to lift. My 2305 will
lift more than the manual shows. Same case for the bota.:goodl:
lift more than the manual shows. Same case for the bota.:goodl:
Hi
The 500mm figure at full height refers to the maximum you could lift to full height if the weight was 500mm forward of the bucket pivot. This is more or less like placing the weight on the bucket edge for a small tractor. Not realistic in most situations. The pivot point measurement is with the weight at the pivot which is also not a real life situation you are likely to encounter.
In reality the weight will be somewhere in between for lifting most materials. Don't get too fixated on the numbers. All modern loaders will normally lift a full bucket of dirt etc to full height.
Because of the changing geometry of the loader as it lifts a loader will be able to lift a larger weight to a lower height. You will also see a figure called breakout force which is the amount of lift you have when the bucket is at ground level. This figure is important for when you shove the bucket into a pile of material and try to lift it out. The other figure is bucket rollback or curl force which is also an important figure. So it is not just about lift capacity and you need to take all these things into account.
In general the amount a loader can safely lift is related directly to the size and the weight of the tractor. The engineers who design them are paying close attention to safety when they set the weight limits.
Brian
The 500mm figure at full height refers to the maximum you could lift to full height if the weight was 500mm forward of the bucket pivot. This is more or less like placing the weight on the bucket edge for a small tractor. Not realistic in most situations. The pivot point measurement is with the weight at the pivot which is also not a real life situation you are likely to encounter.
In reality the weight will be somewhere in between for lifting most materials. Don't get too fixated on the numbers. All modern loaders will normally lift a full bucket of dirt etc to full height.
Because of the changing geometry of the loader as it lifts a loader will be able to lift a larger weight to a lower height. You will also see a figure called breakout force which is the amount of lift you have when the bucket is at ground level. This figure is important for when you shove the bucket into a pile of material and try to lift it out. The other figure is bucket rollback or curl force which is also an important figure. So it is not just about lift capacity and you need to take all these things into account.
In general the amount a loader can safely lift is related directly to the size and the weight of the tractor. The engineers who design them are paying close attention to safety when they set the weight limits.
Brian
I don't disagree with what JDBrian wrote but would like to add a few things. When you sit down to buy a machine that has a front-end-loader on it, there is a price for the basic tractor with the loader. Quite often, you then choose the type of bucket best suited for the job the loader is intended to perform most often.
There are "utility buckets" or "general purpose buckets" available as well as "snow buckets" or "light material buckets". There can also be specialty models such as the "spade bucket" or the "4 in 1 bucket".
That aside, there is also a huge difference in the weight per cubic foot of materials that one might try to lift to full height. It's one thing to grab a heaping bucket full of dry 3/4" clear limestone and quite another to try and lift a heaping bucket of soaking wet clay soil. The former will pose no problem but the latter can almost stand the loader on its nose.
So you can read those statistics in the sales catalogues all you wish but I suggest that you use them for comparison purposes between brands only. For sure, they are an indicator as to what a FEL will lift safely but once you get into the real world with that loader and begin lifting different materials under different operating conditions, that's when you find out how much your loader can truly handle.
The more familiar you become with the behaviour characteristics of your loader, the faster you will realize when you are lifting an unsafe load and will set it down or dump out a portion. Always be aware of how your tractor is reacting as the lift begins because it's talking to you via its own type of body language. Keep the bucket close to the ground while travelling and only lift it in the last few seconds as you approach the dumping site square on.
There are "utility buckets" or "general purpose buckets" available as well as "snow buckets" or "light material buckets". There can also be specialty models such as the "spade bucket" or the "4 in 1 bucket".
That aside, there is also a huge difference in the weight per cubic foot of materials that one might try to lift to full height. It's one thing to grab a heaping bucket full of dry 3/4" clear limestone and quite another to try and lift a heaping bucket of soaking wet clay soil. The former will pose no problem but the latter can almost stand the loader on its nose.
So you can read those statistics in the sales catalogues all you wish but I suggest that you use them for comparison purposes between brands only. For sure, they are an indicator as to what a FEL will lift safely but once you get into the real world with that loader and begin lifting different materials under different operating conditions, that's when you find out how much your loader can truly handle.
The more familiar you become with the behaviour characteristics of your loader, the faster you will realize when you are lifting an unsafe load and will set it down or dump out a portion. Always be aware of how your tractor is reacting as the lift begins because it's talking to you via its own type of body language. Keep the bucket close to the ground while travelling and only lift it in the last few seconds as you approach the dumping site square on.
Hi
Good advice from CG2. Make sure you follow the manufacturers guide on ballast as well. When I got my loader I started out by moving some firewood which is a lite load for the loader and let me get familiar with the controls and how the tractor handles. I then moved to heavier material after I had some experience. I have lately been moving fill which is gravelly and full of rocks up to about 6" diameter. It is also soggy due to our wet weather lately. Since I am moving this stuff over terrain that is a bit uneven I have been taking only about 3/4 of a bucket to be safe. Always beware of the slopes and obstacles you are dealing with and plan accordingly. Better to take a little more time than to risk a roll over.
Brian
Good advice from CG2. Make sure you follow the manufacturers guide on ballast as well. When I got my loader I started out by moving some firewood which is a lite load for the loader and let me get familiar with the controls and how the tractor handles. I then moved to heavier material after I had some experience. I have lately been moving fill which is gravelly and full of rocks up to about 6" diameter. It is also soggy due to our wet weather lately. Since I am moving this stuff over terrain that is a bit uneven I have been taking only about 3/4 of a bucket to be safe. Always beware of the slopes and obstacles you are dealing with and plan accordingly. Better to take a little more time than to risk a roll over.
Brian
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
