Big difference in turning radius: Kioti NX5510 vs Kubota MX5200 vs Mihindra 2555

[LD1]

LD1, excellent contribution!

Measurements are without brake-assist, yes?

When thinking about trying to mow close the things I can see that it's the inner rear wheel track that would tend to matter most.

Just ran across this (from http://standardsproposals.bsigroup.com//home//getpdf//1453):

3.4 turning diameter: Diameter of the circular path described by the center of tire contact
with the surface of the test site of the wheel describing the largest circle when the tractor is
executing its sharpest practicable turn under the test conditions described in clause 5. (See
figure 2.)
3.5 clearance diameter: Diameter of the smallest circle which will enclose the outer most
points of projection of the tractor and its equipment while executing its sharpest practicable
turn. (See figure 2.)

Yes, that is without the brakes.

 

[DieselBound]

Yes, that is without the brakes.

OK, so for the MX5100 we've got 11' 2" w/o brakes and a spec of 8' 11" (8.9') with brakes. 2' 9" tighter turning radius (or 5' 6" diameter) with brakes.

As it is likely to make a (slight) difference, what tires are you running?

 

[LD1]

AG's.....set to the widest as well

 

[TSO]

Not sure what you're referring to when you state "extra foot of turning radius." My first post mentions extremes (posted specs) of 8.9' and 13.1'. And, again, I appreciate that others have different requirements; I'd hope that people can respect my others' requirements.

As evidenced by that standards proposal document that I linked to above there IS a concern: it's likely an even greater concern for big tractors.

I wasn't trying to criticise your personal requirements, I hope you didn't perceive it that way. I think if you equipped all three tractors similarly (including tire choices and tire width settings) they would likely test very similar regarding their turn radius' ... Especially relative to their wheelbase. I'm not sure what their respective wheelbase measurements are, but (like already mentioned by another poster) if one has a longer wheelbase, thus effecting the turn radius, it's probably part of the total tractor design (maybe that is what gives the Kioti and Mahindra their higher FEL lift amounts)... That's why i feel that the turn radius, by itself, when the numbers are all "relatively" close, probably isn't a high priority stat.

My opinion.

 

[DieselBound]

AG's.....set to the widest as well

OK. Kubota doesn't make any distinctions on what tires they're basing the specs on. Might not be significant enough.

 

[DieselBound]

I wasn't trying to criticise your personal requirements, I hope you didn't perceive it that way. I think if you equipped all three tractors similarly (including tire choices and tire width settings) they would likely test very similar regarding their turn radius' ... Especially relative to their wheelbase. I'm not sure what their respective wheelbase measurements are, but (like already mentioned by another poster) if one has a longer wheelbase, thus effecting the turn radius, it's probably part of the total tractor design (maybe that is what gives the Kioti and Mahindra their higher FEL lift amounts)... That's why i feel that the turn radius, by itself, when the numbers are all "relatively" close, probably isn't a high priority stat.

My opinion.

No, no problem.

But as I noted, and the reason for this thread in the first place, there IS a substantial difference. Mahindra doesn't list wheelbase, only "total length." Given that they're in the middle of the pack of the three vis a vis turning radius I'll just assume that their wheelbase is close to the others. The MX5200 and NX5510 differ by a single inch: the MX5200 is 4 inches wider than the NX5510. There's a difference in tires, with, I believe, the MX5200's tires being taller: but, I am totally worthless when it comes to deciphering tractor tire numbers!

 

[Luke'sScreenName]

If I remember correctly for R4 tires the rears were the same and MX fronts were larger.

 

[DieselBound]

Just a quick update. I called and talked to the sales guy I'd been in contact with previously (he'd been on vacation) and I'm pretty sure he's bound and determined to get me an answer: he's extremely perplexed on the specs showing the cab model with a much smaller turning radius.

I'm going to be getting a quote on the NX5510H (asked for two sets of rear remotes, grab hooks on the bucket and filled rears). Have to break down and make a buy soon!

 

[DieselBound]

Talked to the dealer today and was told that that's the correct specs. Still not sure whether he believes it (cab vs open). I looked through the shop manual and I see it lists 157.5", which comes out of just over 13' (and it also says minimum "when braking").

I suppose I'll measure their NX4510HC. I am still waiting on testing An NX with a loader on it.

 

[LD1]

Talked to the dealer today and was told that that's the correct specs. Still not sure whether he believes it (cab vs open). I looked through the shop manual and I see it lists 157.5", which comes out of just over 13' (and it also says minimum "when braking").

I suppose I'll measure their NX4510HC. I am still waiting on testing An NX with a loader on it.

Thats surprising. 13' is the minimum WITH braking? Wonder how bad that would have been without brakes?