Rear grader blade max weight recommendation?

KubotaHawg

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Equipment
L2800DT, LA463, Landpride ΒΒ1260, RCR1260
Jan 9, 2022
56
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18
NW Arkansas
Been a bit since posting but researching rear grader blades and need some advice from the group: I have realized the need for a grader blade in addition to my box blade for maintaining our 6/10 mile private dirt road AND the ditches along to promote/maintain proper drainage. I think I would prefer a 7' blade for more reach but think I can get by with a 6' blade if it has useable offset and tilt functions.

My main question is max weight that my tractor will be able to use effectively. Our road is very rocky and steep but has a good base. Main problem is maintaining the ditches so that all these heavy rains we have had in NWA recently will quit washing our road down the ditches, and keeping them clean of leaves since my three neighbors don't clear their parts of leaves. So offset and tilt are pretty much necessity.

So here are the variables and main question:

L2800 gear MFWD tractor, 29 hp, 2536 lb, R1 tires set widest possible, tires filled

LA463 loader--I mention just to note front ballast for rear implement

Have a LP BB1260, weight 346 lb. ~100 lb log strapped on top still bounces around, and over any size loose rocks. Not heavy enough unless loose gravel/dirt.

Have a LP RCR1260, weight 496 lb, no problem with lifting (obviously, light duty)

Lift capacity for L2800 from tractordata: 1433 lb 24" from end of arms

Found a Bison 8' blade on CL this morning that checks all boxes but is 772# and think might be more than I need. I'm thinking 500-600# range to be heavy enough yet not too heavy for my little rig?
From what I have found researching the best made and most features are Rhino, Woods, LP, Bison--but my primary question is weight for my tractor.
 

old and tired

Well-known member

Equipment
L2800 HST; 2005; R4
Lift capacity for L2800 from tractordata: 1433 lb 24" from end of arms....
772# is less than the lift capacity... I have ballast, about 1000 pounds, 55 gallon drum for grapple work... I think you'll be able to use the blade BUT only heading down hill!!! Which is what I do with my 6 foot Tufline blade.... For ditching, the blade follows my tire track. Not ideal but doable (and sometimes scary!!)
 

MtnViewRanch

Well-known member
Oct 10, 2012
850
285
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Lakeside Ca.
Get a 7' blade that weighs between 7-800 lbs. To light, and you are just wasting your time. The other thing when looking, specifically because you are cleaning out ditches, get one with more than 24" of offset capability. I know that Land Pride has an RPT3584 that offsets 30".
I also very highly recommend skid shoes. Not everyone likes them, but after not having them and then having them, I would not be without them.
An RBT3584 is on my wish list for my 32hp tractor.
 

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NorthwoodsLife

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Lifetime Member

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Kubota B7100(sold), Kubota LX2610 Cab
Oct 15, 2021
1,110
1,042
113
Wisconsin
My 2 cents.

In my experience, back blades are good for snow clearing and spreading, not much else. If your box scraper isn't doing the leveling, maybe try a land plane. Or get more experience with the box scraper.

As for the ditches, that is usually backhoe or manual labor territory. You might be able to tilt a blade far enough for parallel grading, but that is doubtful. If perpendicular grading a ditch, the bucket 100%, or box scraper in a pinch.

The beauty of a box scraper is it's strength. A simple back blade has little of that. And the bigger the back blade the less control you have.
 

jyoutz

Well-known member

Equipment
MX6000 HST open station, FEL, 6’ cutter, forks, 8’ rear blade, 7’ cultivator
Jan 14, 2019
3,296
2,320
113
Edgewood, New Mexico
My 2 cents.

In my experience, back blades are good for snow clearing and spreading, not much else. If your box scraper isn't doing the leveling, maybe try a land plane. Or get more experience with the box scraper.

As for the ditches, that is usually backhoe or manual labor territory. You might be able to tilt a blade far enough for parallel grading, but that is doubtful. If perpendicular grading a ditch, the bucket 100%, or box scraper in a pinch.

The beauty of a box scraper is it's strength. A simple back blade has little of that. And the bigger the back blade the less control you have.
My tear scraper blade weighs 1025# and it’s very useful for cutting ditches when tilted and offset. Rear blades are very useful IF they are heavy. Lightweight blades are near useless because they just skip over the ground. In fact I prefer them over box blades because they are more versatile.

IMG_1233.jpeg
 
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McMXi

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***Current*** M6060HDC, MX6000HSTC & GL7000 ***Sold*** MX6000HST & BX25DLB
Feb 9, 2021
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Montana
My tear scraper blade weighs 1025# and it’s very useful for cutting ditches when tilted and offset. Rear blades are very useful IF they are heavy. Lightweight blades are near useless because they just skip over the ground. In fact I prefer them over box blades because they are more versatile.

View attachment 152792
According to the literature, the NB80-240 is 850lb for the manual model and 913lb for the three-way hydraulic model. The NB120-240 manual model is 1,025lb. Looks like you have the NB80-240.

The Buhler/Farm-King I bought last year is an 8096 (Series 80) and weighs 970lb in the manual version and around 1,050lb with the three-way hydraulics. I only run it on the M6060 at present, and most likely wouldn't run it on the MX6000. It's a bit of a beast.
 
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jyoutz

Well-known member

Equipment
MX6000 HST open station, FEL, 6’ cutter, forks, 8’ rear blade, 7’ cultivator
Jan 14, 2019
3,296
2,320
113
Edgewood, New Mexico
According to the literature, the NB80-240 is 850lb for the manual model and 913lb for the three-way hydraulic model. The NB120-240 manual model is 1,025lb. Looks like you have the NB80-240.

The Buhler/Farm-King I bought last year is an 8096 (Series 80) and weighs 970lb in the manual version and around 1,050lb with the three-way hydraulics. I only run it on the M6060 at present, and most likely wouldn't run it on the MX6000. It's a bit of a beast.
Mine is three way hydraulic, not manual. But you are correct that I read the wrong weight. It’s 950# in the hydraulic mode. I don’t have the tilt cylinder on the blade because I have the hydraulic tilt on the 3ph. It is a bit of a beast, but the MX6000 handles it well.
 
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NorthwoodsLife

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Kubota B7100(sold), Kubota LX2610 Cab
Oct 15, 2021
1,110
1,042
113
Wisconsin
My tear scraper blade weighs 1025# and it’s very useful for cutting ditches when tilted and offset. Rear blades are very useful IF they are heavy. Lightweight blades are near useless because they just skip over the ground. In fact I prefer them over box blades because they are more versatile.

View attachment 152792
Thank you.

OFFSET is key.

My mistake. I thought that the OP had a much smaller tractor than an MX6.

Be well. Tractor on.