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Author Topic: Log cutting without sawing?  (Read 2617 times)

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Offline Southside

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Re: Log cutting without sawing?
« Reply #20 on: January 23, 2019, 12:36:04 PM »
Most I have seen were in the 5HP - 10 HP range running 480V, 3 phase.  
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Offline Francis Nabrink

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Re: Log cutting without sawing?
« Reply #21 on: January 23, 2019, 12:43:53 PM »
Most I have seen were in the 5HP - 10 HP range running 480V, 3 phase.  
For logs with 15 inches in diameter? I have seen those small table timer saws that use tha low HP, but the big ones needed away more dont they?

Offline Southside

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Re: Log cutting without sawing?
« Reply #22 on: January 23, 2019, 12:47:06 PM »
Well, you are cross cutting, but maybe species would impact it?
Franklin buncher and skidder
JD Processor
Woodmizer LT Super 70 and LT35 sawmill, KD250 kiln, BMS 250 sharpener and setter
Riehl Edger
Woodmaster 725 and 4000 planner and moulder
Enough cows to ensure there is no spare time.

Offline Francis Nabrink

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Re: Log cutting without sawing?
« Reply #23 on: January 23, 2019, 12:58:21 PM »
Well, you are cross cutting, but maybe species would impact it?
Like this machine https://www.superaxe.com.au/rex-650-c-saw/
It uses a 70HP motor for one circular blade.

Offline DDW_OR

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Re: Log cutting without sawing?
« Reply #24 on: January 23, 2019, 01:05:57 PM »
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Offline Greyman

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Re: Log cutting without sawing?
« Reply #25 on: January 24, 2019, 03:08:46 AM »
For 2,000,000 per month, assuming 5 day week, 10 hrs/day, that's about 170 per minute (3 per second).  Assuming 15' logs that's about 8 logs a minute (that's a logging truck every 5 minutes or so).  This is all for one plant, which would need to have a feed system something like the mill shown in this video (looks like it may be up to twice as fast, hard to tell).  You might get some ideas from the video on cutting as well, where they cut-to-length.  Logistically, it may be better to have a number of smaller firewood type units scattered around though. 





Offline mike_belben

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Re: Log cutting without sawing?
« Reply #26 on: February 03, 2019, 08:40:45 PM »
Multi blades on an arbor shaft is what im thinking too.  Feed the log at it sideways like an old buzz saw except you feed it whole logs.  Practically speaking they may need to be hand cut to a shorter standardized length like 8ft or so. The downside to making the arbor long enough for whole logs is the shaft would have to get quite thick to endure a long unsupported span.  Or it would need some bearing supports along its length which would reduce log diameter that can clear the bearings or require bigger saw OD.  

Id build it off a diesel truck engine. 855 cummins or something locally plentiful and and simple enough for jungle laborers to maintain. Its okay if you have excess horsepower on hand.  The engine will just live longer.   Id use a truck tranny and driveshaft too. No belts to break, just grease the Ujoints and check oil. 
Revelation 3:20

Offline TKehl

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Re: Log cutting without sawing?
« Reply #27 on: February 04, 2019, 03:40:39 PM »
Maybe I'm overthinking this, but I'd be nervous about cutting with multiple blades on one shaft.  What happens when one of those blocks gets cocked and wedged between two blades...

Now a similar setup where logs roll down a line with multiple saws each taking a bite at a time (or one off each end) dropping to a conveyor.  That would put out some volume...
In the long run, you make your own luck good, bad, or indifferent. Loretta Lynn

Offline mike_belben

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Re: Log cutting without sawing?
« Reply #28 on: February 04, 2019, 09:05:16 PM »
The log loader wont allow it.  You have 3 bladed stars on a revolving shaft that grabs the log out of the feeder, walks it into the saw arbor and drops the pieces onto the outfeed chute while simultaneously grabbing next log. Youd have two stars per blade so as to cradle each bucked round for the last few seconds before they drop down, which prevent ejecting pieces that dont wanna fall perfectly square and kinda toggle between blades. 

Scrag mills use this sort of feeder to gang trim pallet stock. 
Revelation 3:20

Offline Old Greenhorn

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Re: Log cutting without sawing?
« Reply #29 on: June 24, 2019, 10:19:03 AM »
I don't know why, but I was just thinking about this thread the other day and came back to see if anything became of it. I see the OP has not been back in a while. Was curious as to what he came up with to suit his need. I guess I will never know.
Oscar 328 Band Mill, Husky 450, 372 (Clone), Mule 3010, and too many hand tools. :) I mill for fun and my mental health. NYLT Certified.

I ain't the woodcutter, but I can cut wood 'til the woodcutter gets here.


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