Mechanical Tree Jack?
- Thread starter jokke
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Barnie
ArboristSite Operative
Where did you get it
It is made in Sweden; http://www.stalpen.com/ (english version doesn't seem to work at the moment)
I use it when I have to.
And it's so much quicker to use than ropes and winches. Especially with trees like that spruce.
I use it when I have to.
And it's so much quicker to use than ropes and winches. Especially with trees like that spruce.Barnie if you are looking for a tree jack like that, I see you have a Lumbermate. The same company that makes your mill (Norwood) makes a tree jack like that one.
(www.norwoodindustries.com)
Craig
(www.norwoodindustries.com)
Craig
SWE#Kipp
Addicted to ArboristSite
Here is the site of the manufacture of the Timbertool http://www.reipal.se/
jrparbor04
ArboristSite Operative
in this picture i see,,,wouldnt a wedge and a smaller hinge work better and more efficient?
joesawer
Addicted to ArboristSite
Am I the only person who sees this as a very unreliable push method?
stumpjumper83
ArboristSite Operative
Tree jacks
I've seen a regular hydraulic jack inserted into the backcut to assist falling before. This was in the woods though not in a residential setting. I've thought about using a bumper jack / handy man jack with a L shapped brace and chain for pushing trees. It seems that a rope seems to help direct them better and has a ton more leverage due to the the height that you put them in at. Just look at the amount of leverage that you gain by having the pull rope at 20' rather than 6'. I should post pics of the 24" yard maple that I pulled over this summer. The tree was a double and both halves were about 24". I lightened up the outside one and topped it at 20 - 25' then fell the rest of the outside tree. Inside tree I roped at 30 -35' attached the rope to a big telehandler I had rented. Cut my notch, and pulled/wedged the second tree over. I dont thing that the little jack pictured in the pic would have had enough guts to pull that tree over. I think that the jack works about as well as a buddy pushing on the backside. I beleive that for constant use it might need to be beefed up. I'll see if I can find some maple pics...
opcorn:
I've seen a regular hydraulic jack inserted into the backcut to assist falling before. This was in the woods though not in a residential setting. I've thought about using a bumper jack / handy man jack with a L shapped brace and chain for pushing trees. It seems that a rope seems to help direct them better and has a ton more leverage due to the the height that you put them in at. Just look at the amount of leverage that you gain by having the pull rope at 20' rather than 6'. I should post pics of the 24" yard maple that I pulled over this summer. The tree was a double and both halves were about 24". I lightened up the outside one and topped it at 20 - 25' then fell the rest of the outside tree. Inside tree I roped at 30 -35' attached the rope to a big telehandler I had rented. Cut my notch, and pulled/wedged the second tree over. I dont thing that the little jack pictured in the pic would have had enough guts to pull that tree over. I think that the jack works about as well as a buddy pushing on the backside. I beleive that for constant use it might need to be beefed up. I'll see if I can find some maple pics...
opcorn:
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With the angles involved and no really secure attachment, I would not feel comfortable at all.
SWE#Kipp
Addicted to ArboristSite
I've seen a regular hydraulic jack inserted into the backcut to assist falling before. This was in the woods though not in a residential setting. I've thought about using a bumper jack / handy man jack with a L shapped brace and chain for pushing trees. It seems that a rope seems to help direct them better and has a ton more leverage due to the the height that you put them in at. Just look at the amount of leverage that you gain by having the pull rope at 20' rather than 6'. I should post pics of the 24" yard maple that I pulled over this summer. The tree was a double and both halves were about 24". I lightened up the outside one and topped it at 20 - 25' then fell the rest of the outside tree. Inside tree I roped at 30 -35' attached the rope to a big telehandler I had rented. Cut my notch, and pulled/wedged the second tree over. I dont thing that the little jack pictured in the pic would have had enough guts to pull that tree over. I think that the jack works about as well as a buddy pushing on the backside. I beleive that for constant use it might need to be beefed up. I'll see if I can find some maple pics...
The Jack that Jokke shows can puch about 2,6 tons I find it hard for a person to give a push that powerful, that said of course it has it's limits the maple tree you talk about would be one sure, a rope and maybe a rope puller would be a better choice for the job ,,,, It is as always the right tool for the right job
maybe if it woudn't have been so windy day. (and if I didn't have tree jack)
Any method of felling trees can be unreliable if you don't know what you're doing
Well, I can't afford to hire Superman... (and his obviously already working for you)
jrparbor04
ArboristSite Operative
ok,,,so i guess you are saying this little jack is better than using a rope and a wedge,,,hmmmm,,,interesting,,,and dont forget about a better hinge,,,that helps the felling process easier and safer
joesawer
Addicted to ArboristSite
maybe if it woudn't have been so windy day. (and if I didn't have tree jack)
Any method of felling trees can be unreliable if you don't know what you're doing
Well, I can't afford to hire Superman... (and his obviously already working for you)
I do not mean anything personal towards you or the "jack". I can see that it will push, I did not realize that it could push 2.6 tons. Will the foot print support that much, will the wood fiber hold 2.6 tons at that angle? What are the chances of it kicking out?
I'd say your guess is interesting. Rope (with puller) is almost every time as good or better than that "little jack", but in many cases the jack is very much quicker. I'm not sure what you mean with "better hinge", but if you think smaller hinge would be safer..? that's just weird
With my thin arms you can see in that picture... I'd say it could push maybe 1.3 tons, but it's still more than my buddies can push. The jack is CE-approved. That's all I know about it's reliability. And it has worked better than I would have believed before trying.
SWE#Kipp
Addicted to ArboristSite
The treejack has been in use at the tele company's here in sweden since it was introduced on the market since 1972, max lift capacity is 2,9ton I have used a stalp from late 70th and it had been in production use so it did' not look nice but it did function as it was supposed to.
There is a guy in the milling forum that use a Reipal Treejack for his felling it has not the capacity of the Stalp Treejack but it is a good tool non the less !!
And he seems very happy with it !!!
I just bought this Rope puller as a compliment of the Treejack !!
I'm really looking forward of testing it
There is a guy in the milling forum that use a Reipal Treejack for his felling it has not the capacity of the Stalp Treejack but it is a good tool non the less !!
And he seems very happy with it !!!
I just bought this Rope puller as a compliment of the Treejack !!
I'm really looking forward of testing it
SWE#Kipp
Addicted to ArboristSite
Link to the thread with Sawyer Rob who use a treejack
http://www.arboristsite.com/showthread.php?t=49507d.php?t=49507
http://www.arboristsite.com/showthread.php?t=49507d.php?t=49507
jrparbor04
ArboristSite Operative
takes the same amount of time to set a rope with a puller and use a wedge that it would to set this little jack up,,,on the hinge thing,,,that hinge looks way to big for the size of the tree,,,i would use no more than two inch hinge on a diameter tree of that size,,,,
