Rotary Cutter Rotary Cutters

[Texasmark]

Got anything that backs that statement up?

On the location of the rating it's in the seller's specs, sometimes there are at the lift pins and sometimes both there and 1' out. On the foot-lbs, it's just like any other weight-distance calculation, aka a torque wrench. In my example obviously the weight of the attachment would be distributed along the distance as a function of how the weight is distributed within the unit. But if you put the weight out on a 10' boom, it will only do 250#. Don't believe that, you can verify it yourself easy enough, Or get out a McGraw-Hill, Mechanical Engineering Handbook and you'll find it and the supporting equations contained therein.

 

[Jim Timber]

I was talking about the lift rating being tied to the tractor at full power RPM. I think you pulled that out of your butt.

 

[LD1]

You danced around some topics and I am unclear where you stand.

If your belief is that a 3ph that can lif 2500# at 1' means it can only lift 250# at 10',then you are dead wrong. The 3ph is not a simple lever as the formulas you cite are used for.

The "felt" weigh, or weight transfer off the front end and weather you loose steering or flip backwards cn be calculated as such, but not the capacity of the hitch hydraulics itself.

This has been discussed in depth many many times here on TBN.

How much your hitch can lift at 10' back depends on the geometry and toplink configuration of the particular tractor. And can vary greatly even on the same tractor if you have a toplink that has multiple mounting locations.

Basically, the closer to parallel you can keep the hitch through out its cycle, the more capacity you will have.

On my 6' bushhog, that's tailwheel is about 8' back, I can make the tailwheel raise about 18" for every 12" the front comes up. Or I can adjust the TL and make the tailwheel raise 36"+ for every foot of movement the front makes.

If you want to find your capacity at a given distance, this is the simplest solution. Express it as a ratio of lift height. If you have 2500# capacity at the ball ends measure how high they are off a level surface as well as whatever point you want to know the capacity of. Now raise hitch and measure again. The amount of movement, expressed as a ratio, is the same ratio for lift capacity.

IE: 2500# capacity at ball ends, raise the hitch. If it moves 12", and the tip of your boom raised 60".... That's 1:5. So you will have 1/5th the capacity...or 500#.

If for every foot the ball ends move, the tip of the pole moves 2'...that's 1:2. So you would have 1/2 the capacity...or 1250#.

To go as low as 250# capacity, you would need a 10:1 difference in range of travel. Just ajnt gonna happen on a 3ph

 

[WadleyTreeFarm]

Happy Friday everyone!!!

I've been looking at and have started to price out rotary cutters and wanted to see what all of you have to say. I have just purchased a new home with 35 acres and theres a old field on it about 8 acres . Its starting to get brush and small pines growing in it. Id like to mow it and the trails on the property eventually hay that field but thats a project for later anyways. So I have a 2007 john Deere 110tlb it has 43 hp and ive been trying to decide if I want to get a 5 foot or 6 foot cutter. Also Ive been asking the john Deere dealer about the frontier cutters john deere sells but they haven't gotten back to me yet the other cutter ive been looking at is king cutter brand. The local Runnings store sells them i'm just worried that they are as well built. So if anyone wants to recommend size or opinions on brands that would be great thanks much.

Happy Friday as well!

I am in need of a shredder as I recently sold mine with my last machine. I have been looking at 6' and 8' shredders. I can't really afford a new 8', and they hold their value really well on most machines.

I recently looked at a new brand shredder. Bad Boy makes zero turn mowers, and recently was at TSC. They had a 5' and 6' Bad Boy Shredder. It's very nice and at the price of $2200, I'm really thinking about it.

Let me know what you find. As for me, the field won't cut itself so I need to make a decision shortly!

 

[ericm979]

You can get a very nicely made Kodiak from Agrisuppy for less. I got a Mahindra-branded 5' Kodiak with my Branson. With shipping to CA the Kodiak would have been a bit cheaper but it was convenient to get it with the tractor. Shipping to TX should be cheaper.

They're well made with sturdy tubular steel tail wheel supports instead of steel strap on the cheap cutters. The pivot design has a lot of travel so it doesn't bind when I back it up a bank.

There's a big price jump from 6' to 7' though.

 

[ovrszd]

Happy Friday as well!

I am in need of a shredder as I recently sold mine with my last machine. I have been looking at 6' and 8' shredders. I can't really afford a new 8', and they hold their value really well on most machines.

I recently looked at a new brand shredder. Bad Boy makes zero turn mowers, and recently was at TSC. They had a 5' and 6' Bad Boy Shredder. It's very nice and at the price of $2200, I'm really thinking about it.

Let me know what you find. As for me, the field won't cut itself so I need to make a decision shortly!

Welcome to TBN.

Yeah, used 8' cutters are very hard to find!!! And they hold their value well.

I bought a used 6' Rhino SE6 cutter a few years ago for $650. It's paid for itself many times over.

New cutters are hard for me to swallow. But sometimes a guy doesn't have any choice!!!

Let us know what you get.

 

[buickanddeere]

I always try to slightly undersize my implements to the tractor I prefer to have plenty of power for the worst possible situation.

For generators , post hole diggers , cutters etc . I like to go oversize so the tractor does not tear it apart .

 

[flewism]

I buy my implements to fit my tractor, my 5' rotary cutter is perfect for the TC30, 5' tiller, 5' snow blower.

One of my neighbors has a Deere 870 and put a used 6' snow blower on the back and it struggles with deep wet snow way more than my 5' does and we both have the same 25hp at the PTO.

A friend of mine kid just got a Deere 3025E last summer, and bought a 5' KK tiller just like mine, He called me to go to his kids place because they were struggling with the tiller. After adjusting and readjusting the slip clutch, it still would not dig at full depth. Bottom line is his new tractor only has 19 hp at the PTO and the tiller called for 25 hp minimum. He told me he bought that particular tractor because it didn't have the DEF stuff on it. His statement was any diesel under 25 hp don't require DEF. If I understand him correctly he could have gotten the same tractor in either a 32hp or 38hp but it would require the DEF, anyway he would have been better off with a 4' tiller in my opinion.

 

[ericm979]

Tractors under 75 hp do not requre DEF.

Under 25hp there's no emissions requirements. Between 25 and 75hp there's an emissions limit but it is not as stringent as 75hp+. It can be met with a DPF or DOC in most cases. A few like Mahindra use neither.

 

[Bigfoot62]

. . .
Purchase at least a medium duty cutter,the cheap light weight ones are a waste of money.

Agreed. In fact, if you had a bigger tractor, I would say that even the medium duty cutters are a waste of money. I have a Rhino medium duty 7' cutter that I wish I had never bought. I went there to buy a TW, (heavy duty) and let the dealer talk me into the medium duty. It was a leftover from the previous year, and he made me a good deal. But I've already replaced the entire tail wheel assembly with a much heavier unit, and the deck skirt is bent in a couple places. Rhino wouldn't warranty the tail wheel. They said that was "miss-use and abuse." Understand that I'm talking about a 7' cutter and I'm running it on 70-90HP tractors, but you would think that the manufacturers would realize that you can't run a 7' mower with a 30HP tractor!

If you haven't already bought one, take a look at the Bad Boy brand. The local TSC store is carrying them. Looked pretty impressive to me. I'm a Bad Boy mower fan anyway. I have a MZ Magnum and an Outlaw.