Hydraulic power being priority in a purchase.

   / Hydraulic power being priority in a purchase.
  • Thread Starter
#21  
Interesting. It's hard to tell what the difference is in that tractor and a regular (non TLB) version.

I think you are wise to be researching this. I had a bobcat 45 HP tractor and after doing some research I found that it did not offer enough flow or pressure to operate most skid steer attachments that required continuous flow. Skid steers run around 20 gpm at 2,000+ psi and it only ran like 7 gpm at 1500 psi. Being able to use attachments from walk behind skid steers such as a trencher would be really useful on a little tractor like what you are looking at.

One way to get higher flow from a small tractor operating a backhoe is to buy a backhoe with it's own hydraulic system and pump that hooks to the PTO. Those can give you significantly more flow and faster operation than using the tractor's hydraulic pump.

I love the idea of a compact TLB. I guess these woudl be the closest thing I've seen to one.
View attachment 459620

I think we even have a dealer not too far away for those terramites. I wonder what they cost. Maybe I better find out before I make the purchase.
 
   / Hydraulic power being priority in a purchase.
  • Thread Starter
#22  
So you are saying that this tractor can push more flow than a PTO hydraulic pump?

My math comes up with a different answer. I see the ability to flow more than double that 5-7 gpm output with a PTO pump?? What am I missing?

Your math is correct. A 25 engine hp might have 21 or 22 at the pto, but the torque at the pto is multiplied by the gear reduction ratio. But back to hp. General rule of thumb, 1 hp will flow 1gpm at 1,500psi. So if you have say 22 hp available, you can flow 22 gpm at 1,500 psi, or 11 gpm at 3,000 psi etc.

When using the backhoe, it is unlikely that you will run anything else, so your full power at the pto is available to flow fluid.
 
   / Hydraulic power being priority in a purchase. #23  
Those Terramites are stout, but very slow. Lift around 2k lbs, but have a 1 speed HST & top out around 8mph tops. A friend just got an Allmand (no longer in production) but almost the same. More machine than our Kubota L3200s in some ways, but a fair bit slower & you can't remove the hoe to do tractor stuff. About twice the loader capacity to boot.

They were designed primarily for the rental market with a 20hp gas engine, although some have a small diesel in em.

A good little machine if you can deal with the slow travel speed & lack of PTO & 3pt. My friend has a L3200 & wanted a hoe & spare machine, so the lack of the 3pt wasn't a big deal. They are similar size & weight machines.
 
   / Hydraulic power being priority in a purchase. #24  
Your math is correct. A 25 engine hp might have 21 or 22 at the pto, but the torque at the pto is multiplied by the gear reduction ratio. But back to hp. General rule of thumb, 1 hp will flow 1gpm at 1,500psi. So if you have say 22 hp available, you can flow 22 gpm at 1,500 psi, or 11 gpm at 3,000 psi etc.

When using the backhoe, it is unlikely that you will run anything else, so your full power at the pto is available to flow fluid.

Those are pretty cool. And made in the USA. 10 GPM at 2,500 psi. Pricing is on the site as well.
http://terramite.com/
 

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