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Home made log loaders???

Started by steveo_1, March 25, 2004, 11:32:50 PM

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woodhaven

Yep pretty bad. My place will never be the same. It will make you sick to look at now compared to what it was before.

Be careful this summer.
Just watch out for them Gators!!!!!!
Richard

Fla._Deadheader

We will smooch a couple for ya ;D :D :D :D :D
All truth passes through three stages:
   First, it is ridiculed;
   Second, it is violently opposed; and
   Third, it is accepted as self-evident.

-- Arthur Schopenhauer (1788-1860)

steveo_1

   Well guys thanks for all the info on these loaders and  hydraulics, im more confused now than ever :D.  I am running an open center system so the 4 way valve is a good idea to use with my existing plumbing,but my problem is what can I do with all this hydraulic hose that will be attached to my sawhead when i dont need it? Thats why i had planned on using the quick connects. When loading a log the saw will be in the start position.Then i can unhook the loader and begin sawing. Its a 20' mill and i do cut stuff that long from time to time,so i dont need all that hose hanging around in my way when im not using it.           Fla. what do you do with your hose when the saw is in the start, or at the forward most position? Does it tend to be in the way or hang up on anything while the saw is in motion?
got wood?

Fla._Deadheader

The only thing that travels with our sawhead, is the bundle of wires for the sawhead control, and charging wire for the battery.  All the Hydraulics, valves, etc., are mounted permanently to the frame.  We made our mill as a remote, so we stand at one end and watch the sawhead travel through the log.  We can cut 16 feet without the extension.

  I have posted pics of the cabinet, showing the tube of wires that exits the cabinet. It's in the "need a GOOD electrician" thread.
All truth passes through three stages:
   First, it is ridiculed;
   Second, it is violently opposed; and
   Third, it is accepted as self-evident.

-- Arthur Schopenhauer (1788-1860)

Swede

D._Frederick

I have a saw mill with a hydraulic system but I´ve counted both ways and found:  with a 11,2 cc pump it´ll take 8 seconds to load a log.. The one on the mill is 4 or 5 cc. The new pump need 11kW engine at 150 bar and then the lifters can be loaded with 1,8 ton.  I don´t think I have to use more than 100 bar but IF.............. :).

 Fla._Deadheader;

Thank You for talking about adjusting. Didn´t think about it but perhaps it´s a good idea. I´m not doing it by bending anything, just came home after buying two..........*%#={%%# >:(  dictionary* ......of this: One left threaded bolt + a pipe left treaded in one end and right treaded in te other end+ one right treaded bolt. One end at the swinging center and the other end at the hydraulic cylinders lower end/plate to the ground. :) Turning the pipe the length of the "what you want to call it" will be changed.
One day my loglifters will work too but perhaps I´ll take the angular grinder from it´s place today. Don´t know yet but if I do it´s because of You! (^__^)

Steveo_1;

I run the feeding + up/down from the saw there the engine and hydraulic pump is. The log loading at right side. At left side I´ll have two long houses on a cable chain, from the saw unit to start position where I put the control lever for all hydraulic operation at the frame. The housing/chain will be "rolling" in a curve in a trench at the left side. I hope it will stay there.

Did you understand anything? (^__^) /Swede.
Had a mobile band sawmill, All hydraulics  for logs 30\"x19´, remote control. (sold it 2009-04-13)
Monkey Blades.Sold them too)
Jonsered 535/15\". Just cut firewood now.

Vermonter

Borg Warner power steering pumps are often 1.6 gpm at 1800psi, the pressure relief valves are usually on the steering box, so be sure to install one if you use the pump on it's own.  A small horizontal shaft (5-8hp) would be plenty, you can reduce hp requirements by using larger diameter cylinders, but you'll lose speed with a larger cylinder.  A metal resevoir should give you the cooling you need, A separate power unit would eliminate all the hosing, and allow you to run a log turner, or a live deck, or hydraulic dogging, or etc....
New homestead

Stan

QuoteJust watch out for them Gators!!!!!!

Dinna worry we Vols will keep 'em held down.  :D
I may have been born on a turnip truck, but I didn't just fall off.

EZ

I've been kicking around about putting a hyd log loader on my mill also. Dont know any thing about hyd. I've got a pump off of my old log splitter, dont know the rating or anything like that, all I know is it was ran by a 8 hp and split some really tuff stuff. But if I use it I'll have to buy a motor for it.
Also I have a hyd snow blade motor and pump and a guy at the shop told me that it would be plenty of pump and motor to lift a large log, I dont know. Any body know if this guy knows what he is talking about or is this a bunce of crap.
EZ

Buzz-sawyer

Hey EZ
Yea the pumps for truck snow plows are plenty powerful....similair to the 12v pumps on fork lifts I have seen them modified to run  a boom crane to lift 5000 puonds....
    HEAR THAT BLADE SING!

Swede

Have been making a electric position stop for easier and quicker set of dimension for two days but it´ll take one more day.
Yesterday I get the  cylinders,  and other hydraulic components for log lifters and chain rotating bar. :) But I also get more ideas wich means more job. Yesterday evening i get idea about  remote control for the feeding and up/down in the end of the frame? The weather is fine so i realy want go out to the log piles waiting for me but.......

Realy begin to understand you guys talking about more, bigger, updatig, bells, stronger, faster, whistlers.......... Do I ever finish this sawmill?

And by the time money goes the wrong way! /Swede.
Had a mobile band sawmill, All hydraulics  for logs 30\"x19´, remote control. (sold it 2009-04-13)
Monkey Blades.Sold them too)
Jonsered 535/15\". Just cut firewood now.

EZ

Thanks Buzz,
Another question.
Can I tap in the small holding tank of the snow plow with say a 3/4 line and run it into another holding tank.
EZ

Swede

EZ;

You need to cout a littel to find out if a pump can make what You want it to. All pumps gets  "enough  to lift a log".

A pump from a logsplitter usaly works at 2000-2500psi. 1psi=14,3 bar
With 2 cylinders Ø4cm (~1,5") you get:
2x2x3,14=12,56 (area of cylinder) x2=25,12sqcm.
25,12x150bar (2145psi) gives you the power 3768KP.

Ex. Rotating center-cylinders end=200mm
      Rotating ceter-center of log=600mm
600:200=3
3768KP:3=1256Kg (max. log weight) when angle between Rot. center -cylinders upper end and the line between the cylinders two ends is 90*

If possible take a look at the  parts from the logsplitter. I guess the motor was rated at 1750rpm (4-pol.) at 60Hz. and 8Hp (~6kW) with the pump coupled end to end with the motor. Am I right?

Formula:
Q=Flow in Litres/min.
Vg=Flow in sqcm/r.
n=rpm.
p= pressure in bar
P=Power in kW

 Q= Vg x n x 0,94: 1000
 P= p x Q : 510

Or so to say, a motor at 6kW gives ~20.4 litres/min. at 150 bar. It will take 18,47 sec. to fill the two cylinders if they are Ø40 mm. and 250mm long.

I think......../Swede.

PS. Please, tell me if I´m wrong!













Had a mobile band sawmill, All hydraulics  for logs 30\"x19´, remote control. (sold it 2009-04-13)
Monkey Blades.Sold them too)
Jonsered 535/15\". Just cut firewood now.

EZ

Now I'm really confused. I can see right now I've got my work cut out to do this. ;D
EZ

woodhaven

Don't feel to bad. I would never in a million years have thought of using a auto power steering pump for something like this. I still ain't convenced but it does have my intrest up for a experiment.
I wonder if you use power steering fluid or hyd fluid?
Richard

isawlogs

You guys have me confused and I'm not even building a loader    :o :D ;D ;D
A man does not always grow wise as he grows old , but he always grows old as he grows wise .

   Marcel

Fla._Deadheader

Well, I don't have any problem with being confuzed. I just try to not get edikated more than my intelligents will allow ::) ::)

  Getting a loader to work is as easy as fallin off a log ;D ;D ;D

  I think I paid around $74.00 for a forklift pump, on Ebay. If the reservoir isn't large enough, just add an extra one. If a pump puts out pressure, the cylinders will push the log up. How fast, depends on the size of the hose and cylinders. A 12V pump would be MUCH easier than a power steering pump. NO belts or add-on motor to mess with. A forklift pump powers a forklift up, don't it ?????

  Swede likes to put out all them Swedish Metric numbers to confuze y'all, and ya see how confuzed HE is :D :D :D :D :D :D

  Don'T try to make this harder than it has to be. Shoot, we done did it, and it werks ::) ::) ;D :D
All truth passes through three stages:
   First, it is ridiculed;
   Second, it is violently opposed; and
   Third, it is accepted as self-evident.

-- Arthur Schopenhauer (1788-1860)

Buzz-sawyer

Fla ...a big ditto to your post (previous)
It aint ALL that hard and it certainly can be done cheap and quickly.
EZ you can put another holding tank with it...you are definitely thinking right....a pump is a pump, a reservour is a resivour, and a cylinder a cylinder,
In regards to the power steering pumps use ;I have witnessed them being used to operate a mast lifting 6000 pounds...
The transfluid will work just fine...or light oil of similar weight...10w?
The only thing a person might need to be aware of is high vollume low pressure systems/ vs. high pressure low vollume....you could blow seal outa the low pressure cylinders... (all we have been discussing is high pressure stuff,  not a lot of  low pressure stuff is in use)

You guys put something together and see what happens....youll be suprised....it might work!
    HEAR THAT BLADE SING!

Swede

Fla_D;  
"Swede likes to put out all them Swedish Metric numbers to confuze y'all, and ya see how confuzed HE is "      

(^__^)

Yes! These unlogical US measures makes me confuzed even having a small library behind my back  to find out gall. lbs, psi .........and my calculator  smelled strange last night. :O
Sorry, but these logical metric is all my poor education allows me to handle.

Buzz-Sawyer; ".......high volume low pressure systems/ vs. high pressure low volume........"

:) Yes, working with air compressors in 20 years I know that you get ~100 l/min per 1HP at 100psi even when I´m asleep. The formula told me how to calculate in hydraulic and I think anyone can get use for that knewledge too.

I´ve seen so many grown men behave as childs after building woodsplitters with a cheap (e.g. free) pump from a workshop machine at 3-400psi and thinking a pump is a pump and a cylinder is a cylinder.

Swede.
Had a mobile band sawmill, All hydraulics  for logs 30\"x19´, remote control. (sold it 2009-04-13)
Monkey Blades.Sold them too)
Jonsered 535/15\". Just cut firewood now.

Fla._Deadheader

Swede, right on, Buddy ;) ;) ;D :D :D :D :D :D

  My point has always been, if ya don't have a junkpile to play with, yer in deep do do.  As Buzz just said, "try it, Ya MIGHT like it" :D :D :D :D :D

  I've posted enough pics of our little building adventure, that a blind man could make a log loader.

  Has ANYONE done any thinkin about a "Green Chain" type loader???  I ain't sayin anymore about THAT.
All truth passes through three stages:
   First, it is ridiculed;
   Second, it is violently opposed; and
   Third, it is accepted as self-evident.

-- Arthur Schopenhauer (1788-1860)

Minnesota_boy

Harold,
Are you talking about the green chain that takes the lumber off the mill to the stackers, or the live deck that moves the logs to the sawmill?
I eat a high-fiber diet.  Lots of sawdust!

Fla._Deadheader

Live chain, Green chain??? Same-same ain't it??? ??? ??? ;D
All truth passes through three stages:
   First, it is ridiculed;
   Second, it is violently opposed; and
   Third, it is accepted as self-evident.

-- Arthur Schopenhauer (1788-1860)

woodhaven

I want the power steering pump off the car. Wife says go to the junk yard. I just don't understand I know the one on the car works. Women          ?????????????????

 I Never Get To Have Any Fun
Richard

Fla._Deadheader

Richard, ya went and done it all wrong :o :o

  Ya shooda sneaked out during the night and took it offa the car. THEN, ya cooda said some thief absconded with the merchandise ;D :D :D :D
All truth passes through three stages:
   First, it is ridiculed;
   Second, it is violently opposed; and
   Third, it is accepted as self-evident.

-- Arthur Schopenhauer (1788-1860)

Buzz-sawyer

Hey Richard...better yet install a high tech lifing device ON your wifes car then use it as a "All terain forklift" to move your logs....
    HEAR THAT BLADE SING!

woodhaven

You trying to get me killed!!!!!!!!!!!!

She is standing here now with Mr. Smith and Mr. Wesson
Richard

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