046 said:thanks for all the info everyone...
ended up with the highest tonage unit that's still reasonably priced.
a true 35 ton 16gpm w/12.5 hp.
looked carefully at 22, 27, 28 and 35 ton chassis. 27 ton MTD 5.5 hp had the lightest chassis. next size larger was 22 ton speeco 6.5, then 28 ton speeco 10.5hp. with 35 ton 12.5hp speeco (huskee) the beefiest by a large margin.
asb151 said:Congratulations. Have you run it yet? I am curious to see what you are measuring for cycle times.
Jackman said:I Guess what confuses me the most is that both splitters seem identical except for the honda motor on the northern tool unit. Its less hp than your unit and more expensive....yet 2 tons more. I like them both but don't know which one to pick up. I'm always a supporter of the theory more HP is ALWAYS better...(the motorhead part of me speaking).
Jackman said:I Guess what confuses me the most is that both splitters seem identical except for the honda motor on the northern tool unit. Its less hp than your unit and more expensive....yet 2 tons more. I like them both but don't know which one to pick up. I'm always a supporter of the theory more HP is ALWAYS better...(the motorhead part of me speaking).
chadincolo said:Changing the pump won't change the tonnage rating unless you also change the pressure the system runs at. Don't know what the hydraulic set up is on your shear, but the get 40 tons out of a 4 inch cylinder (that's what the 22 ton models use) you would need 6300 PSI...that's not something that is feasible.
Jackman said:Chadincolo,
The HP difference must not be an issue...I looked at the Speeco website and they show the specs for all their splitters. The 34 ton model uses a 10.5hp engine and the same spec'd model but with a Honda engine only requires an 8HP Honda to do the job. So the 35ton model, which uses a 12.5HP B/S motor should require about a 9-10HP Honda to do the job following their setup/design.
I'm a B/S fan I just want to know why Honda engines are put in applications that require larger HP B/S engines to do the same job. Do the Hondas have more torque and thus a lower HP model can be used? I think the Huskee talked about in this post is a really great setup and has a really good price right now....I may go get one myself like the author of this post did. Just trying to understand the design behind it all.
chadincolo said:Both are identical, use the same pumps, same valves set at the same pressure, same size cylinder. It's a numbers game, all components have a tolerance, do you assume the pressure is at spec, or at top of tolerance? The Northern looks scary to me (I saw one in person) the wedge goes back into a "tunnel" for a stripper plate, what happens if your hand is near, or what happens when a piece of wood falls in there and you don't see it?
In general, you need 1/2 hp per GPM of the pump, so even a 9hp is a bit oversized for a 16 gpm pump. Speeco is made in Golden Colorado, a 9 hp Honda won't make 9 hp there, so a 12.5 will ensure you won't run out of power (just guessing on the reason, and add that a 13 hp Honda is a big price)
046, how does the cast foot look? Thought that was an interesting add on, looks much bigger than the old cut steel piece. Did you get the optional log catcher too?
046 said:my cycle time of 9 sections down and 8 seconds up way exceeds spec's of 15 seconds. so I would not call that off.
as for running at 1/4 throttle, ram punches right though 18 in diameter logs without knurls with no hesitation. that tells me plenty of hydraulic pressure is getting delivered.
could be totally wrong, but see no reason to run engine at full blast to split smaller logs.
edit: just checked with Speeco tech's. they verified that's how they would operate 35 ton unit themselves. run it at 1/4 throttle or so, then raise rpm's for bigger wood.
also checked, 9 seconds down and 8 seconds is normal for 35 ton unit.
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