Carbide cutter or Timberaxe?....
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Robbie Hegwood
Platinum Member
Hey Maka. Gyrotrac's are so cool. To see them just sitting there one would have no clue to the maham they can cause. Gyro has really done there homework, they are extremely serviceable and tough as nails. I don't now if I told you but the GT-25 I demoed the salesman actually chewed up a aluminum wheel and tire.The biggest piece I could find was the size of my hand. How awsome is that? Did you see my post on the other thread about me going to a demo for a Newholland TV-145 with a carbide extreme? That was an very interesting approach to a mulcher carrier. Last thing, after seeing the pictures you posted of the snow you need a loftness snow blower on an ASV to show off !!!! Robbie
Maka
Veteran Member
How about these? The pipe was in some underbrush. No damage to the machine and I was told they could eat much more. Here are some taking down some brush and small trees.
Loftness is nice stuff. I like what they have. I have an opportunity to be a Gyro-trac dealer but I just don't know about it as the prices are up there. By the way, see the gyro-trac says stay back 400', I was'nt. I would make sure in the future I am as that is one nasty monster.
Maka
Loftness is nice stuff. I like what they have. I have an opportunity to be a Gyro-trac dealer but I just don't know about it as the prices are up there. By the way, see the gyro-trac says stay back 400', I was'nt. I would make sure in the future I am as that is one nasty monster.
Maka
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Robbie Hegwood
Platinum Member
Maka, good time for this story. When gyro was here we were heading out of the woods to be done and load our tractors.Of course I said just one more tree that was in the way. A 60' rocket of a hardwood. He cut it lose and the push bar on a GT-25 is usless and the tree came back over the tractor. And...where was I standing? 55' away from the 60' tree. Well after a got his attention to call 911 because of the whole in my head, back boarded out of woods, ambulance ride to hospital, 14 stitches in top of head and mild concushion, I do know exactly what you are talkin about. Yes I learned my lesson, The statments on the tractor are accurate measurements.
And yes the bottom line with gyro's is the price, man what a price.
I'll post this and wait for the comments. Robbie
And yes the bottom line with gyro's is the price, man what a price.
I'll post this and wait for the comments. Robbie
Renze
Super Member
Robbie,
Sure it will test my skills to build a machine like that... but that's the whole idea of this undertaking
I am a machine freak and i love to build gadgets that others cant afford.. You're right, FAE is from my continent, from Italy. There is also Meri crusher, from Finland. Suokone Ltd product lines
my idea looks most like the Loftness carbide cutter, Carbide Cutter, forestry products by Loftness, tree brush cutter
I want to use my newly acquired band saw to saw triangular blocks from mild steel 2x3 inch solid bar, weld these to a pipe with 3/4 inch wall thickness, and then weld a laser cut 1 inch HARDOX 500 wear resistant chiselplate to the front of these tooth. When i do clever welding, i could reach these welds with an angle grinder and replace all the teeth in a saturday. We would only use such a machine to clear up the mess around our farm, and for a few customers of my brothers construction, farm, and municipal contracting business.
I am not afraid of welding the basic machine, with some help from people i know, who work at machine shops.
The only payed labor i would need to hire, is the balancing shop to balance my assembled rotor. i have contacts in the business (at previous employers) from whom i can get an adress of suitable balancing shops.
The biggest pain in the &rse would be to find a cheap angle gear that can take this abuse... A new one would be out of my budget
Sure it will test my skills to build a machine like that... but that's the whole idea of this undertaking
I am a machine freak and i love to build gadgets that others cant afford.. You're right, FAE is from my continent, from Italy. There is also Meri crusher, from Finland. Suokone Ltd product linesmy idea looks most like the Loftness carbide cutter, Carbide Cutter, forestry products by Loftness, tree brush cutter
I want to use my newly acquired band saw to saw triangular blocks from mild steel 2x3 inch solid bar, weld these to a pipe with 3/4 inch wall thickness, and then weld a laser cut 1 inch HARDOX 500 wear resistant chiselplate to the front of these tooth. When i do clever welding, i could reach these welds with an angle grinder and replace all the teeth in a saturday. We would only use such a machine to clear up the mess around our farm, and for a few customers of my brothers construction, farm, and municipal contracting business.
I am not afraid of welding the basic machine, with some help from people i know, who work at machine shops.
The only payed labor i would need to hire, is the balancing shop to balance my assembled rotor. i have contacts in the business (at previous employers) from whom i can get an adress of suitable balancing shops.
The biggest pain in the &rse would be to find a cheap angle gear that can take this abuse... A new one would be out of my budget
Robbie Hegwood
Platinum Member
Renze, sound like you have a very sound plan. If you can made your plan work you will be saving yourself a small fortune. I don't know if you saw the prices on the loftness web site but these puppies aren't cheap. I don't recall what you will be running this on??? Just make sure you have a "tree bar" to keep trees away from you. Last thing if you had to cut off the "teeth" to change them and reweld wouldn't that affect your balance? Maybe build some form of a pocket with smaller weldes to address that. Keep us posted, this does sound like a fun project. Mulchers by Renze, kinda catchy.
Robbie
Robbie
Renze
Super Member
Robbie i will run this off PTO of my brothers 6718 Zetor.
You said 75 hp will make short work of trees up to 6" but after that the required power rises fast... i wont be doing anything bigger than 6" because we dont want to waste good firewood...
About the balancing, i'm sure that laser cut 1" hardox plates dont differ all that much in size and weight.... it would be mostly the rotor itself, with its screw wise mounted chisels. (positioning the chisels on the rotor would be hand measuring and i dont rely on myself in this matter)
At a former employer, they made a kind of tub grinder for household waste, a 3 meter high bin, 2 meter in diameter, with a christmas tree shaped rotor inside, spinning at 900 rpm. There were solid bars made of Hardox steel, the top ones short, the bottom ones were longer, hence the christmas tree shape of the assembly.
trash was fed on top, then it would be shred while falling down into the grinder while the space between sidewall and chisels would decrease when the material fell deeper into the grinder.
This rotor was built up from chisel holding disks around a 6" steel shaft and weighed allmost a ton (litterally)
it was precision balanced by a company, that welded some plates of flatbar on strategic positions on the rotor.
The tub itself was lined with hardox plates as well and after a half a year the tub had to be welded with wear resistant rod. Then after a year, the tub was replaced and the rotor assembly was rebuilt.
It was powered by a 250 Kw electrical motor, and to test run it we had to hire 3 diesel generators, because if we ran it off the net, it would down the electricity network in quite a few surrounding villages..
You said 75 hp will make short work of trees up to 6" but after that the required power rises fast... i wont be doing anything bigger than 6" because we dont want to waste good firewood...
About the balancing, i'm sure that laser cut 1" hardox plates dont differ all that much in size and weight.... it would be mostly the rotor itself, with its screw wise mounted chisels. (positioning the chisels on the rotor would be hand measuring and i dont rely on myself in this matter)
At a former employer, they made a kind of tub grinder for household waste, a 3 meter high bin, 2 meter in diameter, with a christmas tree shaped rotor inside, spinning at 900 rpm. There were solid bars made of Hardox steel, the top ones short, the bottom ones were longer, hence the christmas tree shape of the assembly.
trash was fed on top, then it would be shred while falling down into the grinder while the space between sidewall and chisels would decrease when the material fell deeper into the grinder.
This rotor was built up from chisel holding disks around a 6" steel shaft and weighed allmost a ton (litterally)
it was precision balanced by a company, that welded some plates of flatbar on strategic positions on the rotor.
The tub itself was lined with hardox plates as well and after a half a year the tub had to be welded with wear resistant rod. Then after a year, the tub was replaced and the rotor assembly was rebuilt.
It was powered by a 250 Kw electrical motor, and to test run it we had to hire 3 diesel generators, because if we ran it off the net, it would down the electricity network in quite a few surrounding villages..
Robbie Hegwood
Platinum Member
Renze, Sounds like you have a advantage to making your mulcher with your background. The tub grinder sounds like a beast, my kind of machine.
With how your driving it,Friday I went to a demo of a new holland TV-145 bi-directional tractor running a carbide cutter extreme mulcher. It was also pto drivin with 105 pto hp {the tractor was 145 gross hp] and to me it seemed to not bog down as easily as hydraulicly drivin heads. It also recovered qiucker so your 75 pto hp I believe will be more than enough. Plus the sharper you make your teeth/knives the more work per hp you will get. Does that make since? I think that is were gyrotrac gets there extra capicity is from smaller sharpened knives verses my full length rows of knives.
As far as bringing down the power grid did ya'll learn that the hard and fun way? Where I work we are a sub 0 freezer storage warehouse for Kroger grocery stores with over 1500 hp of electric motors on 7 screw compressors so I too know about using elect. Talk about something that uses a ton of elect. is starting a elect. motor of these sizes. Our largest motor is 300 hp. We were looking into having a backup generator made for our engine room but when onan/cummins said it would cost 2 million dollars and take a 12 cylinder diesel in a 53' trailer Kroger said they would take the product lose and deal with the insurance company. Robbie
With how your driving it,Friday I went to a demo of a new holland TV-145 bi-directional tractor running a carbide cutter extreme mulcher. It was also pto drivin with 105 pto hp {the tractor was 145 gross hp] and to me it seemed to not bog down as easily as hydraulicly drivin heads. It also recovered qiucker so your 75 pto hp I believe will be more than enough. Plus the sharper you make your teeth/knives the more work per hp you will get. Does that make since? I think that is were gyrotrac gets there extra capicity is from smaller sharpened knives verses my full length rows of knives.
As far as bringing down the power grid did ya'll learn that the hard and fun way? Where I work we are a sub 0 freezer storage warehouse for Kroger grocery stores with over 1500 hp of electric motors on 7 screw compressors so I too know about using elect. Talk about something that uses a ton of elect. is starting a elect. motor of these sizes. Our largest motor is 300 hp. We were looking into having a backup generator made for our engine room but when onan/cummins said it would cost 2 million dollars and take a 12 cylinder diesel in a 53' trailer Kroger said they would take the product lose and deal with the insurance company. Robbie
Renze
Super Member
Robbie the PTO mulcher has more inertia (flywheel mass) than a hydro drive. I noticed on the videos i saw, that excavator mounted mulcing heads died their rpms off pretty quickly.
I first need to get started on my straw chopper/bedder, finish my ongoing FEL project and then see if i still want to build the mulcher...
First i need to get my recently aquired band saw running in the right direction, as i've already wasted a saw while reversing the saw...
I first need to get started on my straw chopper/bedder, finish my ongoing FEL project and then see if i still want to build the mulcher...
First i need to get my recently aquired band saw running in the right direction, as i've already wasted a saw while reversing the saw...
Robbie Hegwood
Platinum Member
Hey Renze. Okay, you can finish your other project first and get your bandsaw to cooperate. I was really surprised how well the TV-145 ran and cut with the carbide cutter. The salesman said the timberax extreme on that tractor was even more impressive but I'm already having issues with sharpening blades all the time, so if I buy another head it would be a carbide cutter.
Also to second your pto verses hyd statement have you seen the size of the powerpacks they use for excavator heads?? They are usually twice the size of what is driving the tractor. Gee, I wonder why. I think that supports the hp needed theory. Robbie
Also to second your pto verses hyd statement have you seen the size of the powerpacks they use for excavator heads?? They are usually twice the size of what is driving the tractor. Gee, I wonder why. I think that supports the hp needed theory. Robbie
Robbie Hegwood
Platinum Member
Not real sure which picture your refering to but there are two main forestry packages. ASV has there own which you can see on there web site and see if that's the one your refering to. A company named Hahn makes a package that is identifiable by it's top is elevated. I especially like Hahn's top guard. But there are pieces i like of ASV's better. But since I don't have either and they are 5,000+$ I will be making my own. It will be an elevated design. I am still on the fence about a forestry door, I have a friend who will cut me a 1/2 piece of plexi for 200.00$ but not sure if it's stronge enough. The cheapest real forestry door is 1000.00+ so will see. I have other more pressing expenses right now. I had a chance to see a ASV with there forestry package up close today when I dropped off my tractor and its pretty tough and financeable in the intial purchase. That would have been a nice option but they wern't out yet when I bought mine.
Robbie Hegwood
Platinum Member
Okay, I found the picture and I have seen that version before now that I see the picture. A New Holland rep knows who makes it but I was not interested in it at all. The reason being with most forestry packages the front doors are so beefy they usually connot be kicked out in an emergency. That makes the only emergency exit the rear window, with that guard it blocks the only way out of the tractor. I now that doesn't sound like much but with the environment these tractors run in the possibilty of fire is high. I want out qiuckly if need be. I've had to use my rear window once "ASV Face Down" in the saftey section. So I know from personal experience. Both the Hahn and ASV packages keep the rear window as an option. The Hahn you can go out the door the ASV you cannot. See what you make of that. Robbie
CallChopper
New member
- Joined
- Mar 27, 2007
- Messages
- 2
Guys,
You NEVER want to have just the rear exit. If the engine is on fire and if the ASV lift is up you cannot exit the door by opening it. You have to have the pull the strip to push the window out. Crawl out over a burning engine?
In Nevada City CA old ASVs don't wear out they burn up. one a year for the last 4 years. Worn fuel line, not clearing the belly pans, sticks on the turbo.
Want to buy mine? with an FAE carbide fixed tooth?
You NEVER want to have just the rear exit. If the engine is on fire and if the ASV lift is up you cannot exit the door by opening it. You have to have the pull the strip to push the window out. Crawl out over a burning engine?
In Nevada City CA old ASVs don't wear out they burn up. one a year for the last 4 years. Worn fuel line, not clearing the belly pans, sticks on the turbo.
Want to buy mine? with an FAE carbide fixed tooth?
