calamari
ArboristSite Operative
I always thought that limbing was bumping knots but I never worked for a commercial timber company and I'm old.
Do loggers really cut "200 trees/day"?
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I have not, at least not on a tower side, shovel logging yes many of them. but I do know the difference between mowing down pulp wood vs marketable timber, and I have been cutting for quite awhile now myself.
Pushing trees is dangerous, anybody thats been doing it for awhile should know that, pushing more then a couple exponentially more dangerous with every stem you cripple, ****ing off and dropping a couple sticks next to them, then maybe working your way back to them crippled trees is about the dumbest ****ing thing I've seen put to video since the fabled ladders and chainsaws video. This cutter is young, if he wants to get old, he should maybe think about gravity for awhile.
Bumping knots is usually done at the landing. There are often stobs and limbs on the underside of the log that the faller couldn't get so the chaser cleans up the log.
Nah, bumping is just another spec on your spec wood.
The expression is as American one.
I met guys in Alaska that were hired for just that job. It's more associated with export softwoods in the PNW but may very well be over used (misused )and said for cleaning up the branch breaks on yarded wood. Limbing in softwood is flush with top of the branch collar. "bumping knots" is fairing in the swollen branch collars and groath bumps where needed.
Now that's my understanding anyway. JJ would know. It's another stage in export timber that Fallers don't do in that region.
I do in the UK in hardwoods such as sweet chestnut for fence poles and posts. Can do it with the peeler going back and forth but is hard on blades and better with saw when limbing.
Writing at the same time. Is it not associated more with export?
its fairly standard for all mill wood (not necessarily needed for pulp) if its hand fell and limbed, then likely one side will still have stobs and lumps that were missed. So the logs get rolled so the stubs can be knocked off.
its more to do with our type of debarkers then anything, ring type that encircle the log, then the log is shoved through, big stobs and lumps will hang up on the mechanism and cause all sorts of trouble, so either the poor SOB that runs the debarker has to bump them, or its done after grading.
Because of this it can potentially get the log culled, one or two stobs isn't a big deal usually, but if one whole side of the log is covered in 4" long 4" dia stobs... they mill gets upset in a hurry. One of the buyers at one of my favorite mills, used to run their debarker, (its a pretty skookum show that builds folks up from pushing brooms to potentially being CEO, its employee owned and operated) anyway every step of production the guys working there worked at the position before and so on....anyanyway...the buyer is younger then me, and he's super open about what the mill needs and wants, just a few minutes talking to him will change your perspective on what makes a good log better, or worse.
For mechanized processing, its pretty much a non issue.
the other benefit of bumping knots is that the logs will sit better on the truck, meaning the driver won't have to stop 15 times on the way to the mill to tighten wrappers, and for stuff like cedar you can maybe even get 1-2 more logs on before you're over height
an example ring type
vs flail type
the old export yard here, would debark before shipping, or now days stuffing containers, I think they still do? but ownership of the yard has changed hands and a lot of the old machinery has been sold off... and I haven't been in there in several months... they are still exporting kinda... as Old DT45 pretty much sold them down the river with the china trade war, the Korean, Japan, and Canadian markets weren't nearly as robust as the china market combined.
vs flail type
the old export yard here, would debark before shipping, or now days stuffing containers, I think they still do? but ownership of the yard has changed hands and a lot of the old machinery has been sold off... and I haven't been in there in several months... they are still exporting kinda... as Old DT45 pretty much sold them down the river with the china trade war, the Korean, Japan, and Canadian markets weren't nearly as robust as the china market combined.
Hate to fall into either type, I would get more than a trim and a shave. Ron
Exactly. Those shows are geared for entertainment and fake drama. They call them reality shows but they are far from reality.
I also mostly heard it called knot bumping over here on the eastside. Can't think of ever hearing it called knot bumping on the westside.
Thanks for the explanation. So @calamari is right then, it's part of limping of the 4th side or at times what is left on all 4 sides on a 'down the hill, Bill' show.
I was a dry sort bucker for about a week in '89. The export got extra collar work. May well have been specs for that client though?
Good vids. I would like to research more.
calamari
ArboristSite Operative
In the logging shows here in central Calif. in the 1960s the entry level job was taking the chokers off and "bumping knots' at the landing as others have pointed out. If you do that for awhile and don't puke, faint or quit, you were considered a serious prospect. I don't recall machine barkers back then and for damn sure no harvesters. Everything was skidded with a cat around here and nobody escaped with their hearing intact.
Nope. All the outfits I've been around have cut off the limbs and stobs that survive the trip to the landing. I always thought that was what the mill demanded. Exporting is illegal off federal land, except for odd exceptions about incense and Alaska yellow cedar and logs from Alaska...
31 overnight with clear sky's this morning.
Northerner
ArboristSite Operative
I know a few older loggers that used to hand fall spruce on the commercial side of things.
200 trees would be a slow day. Not talking giant trees, but when it came to avg 12” trees they got a lot more than 200 trees cut down.
200 trees would be a slow day. Not talking giant trees, but when it came to avg 12” trees they got a lot more than 200 trees cut down.
Cricket
ArboristSite Operative
Just a simple 90 degree snap about 10' off the ground. Bill was $750. Much of that was for the increased risk, trip, emergency day before Christmas, and bucket truck. They got lucky it didn't punch a hole in the roof. Holes in the roof are a chore.
I eat 100 trees for breakfast
With a little ketchup and hot sauce, or just salt and pepper?
Ron
Ron
As it was pointed out to you..We would assume the statement of 200 trees was not to include any bucking.
20" Was A diameter that I thought was achievable within the right circumstances. I am sure I have at least matched those numbers with bigger trees but that was with an excavator raking the flat ground and pushing my trees when needed.
Three more excavators following..pulling stumps,raking branches & running logs.
In perspective I've limbed Cedar,Fir & Arbutus on a job that had smaller trees on rock for other property developments. The trees had to be limbed down to 6" tops and cut to 20' lengths for a container for firewood. Get a saw log when I could. 8 trees an hour it worked out. Some took 1.5 minutes and some cedar were 15 minutes to fell & process.
1 excavator pulling stumps and getting logs down and pilling brush.
He even drove rock truck for 2 days and was soon on my azz again.
Hemlock-Balsam production whilst Heli-Falling.
Top of saw log has to measure 17" at 27 ft (8.3 m) is the smallest. 17" at 37 (11.3) is the next size. You need about 28" tree to make a 27 ft × 17". Spruce need 20" top and Yellow cedar 15".
Not uncommon to find a acre block of Hem-bal in the middle of a cedar stand. All of it can be undersized and It's just a slaughter. All the junk down the hill with lots of top weight on them. It's fast going.
There are certainly jobs that make anyone look ordinary.
