LT40 production question??

jeremiahdixon · January 31, 2011, 05:15:55 PM

Hi everyone, I am curious about how many logs I might be able to cut on my LT40 with 8' 8" avg dia 10" making 2 passes on each oak log?

Bibbyman · January 31, 2011, 05:55:11 PM

I'm not clear on what you're making but the problem I see is getting them on and off fast enough.

I'd say if we were just slabbing two sides and pushing them off, we could maybe do a 100 a day. But.. we have an LT40 Super with hydraulic power pack that speeds up the hydraulics. Also an infeed deck and rollers to push the cants out after they're sawn.

16' live deck infeed that I could probably stack 20 or more small logs on at a time.

Sections of skate rollers used with the roller toe boards make removing cants easy and quick.

You say LT40... Manual or hydraulic? Old style hydraulics or new with two-plane clamp and roller toe boards?

jeremiahdixon · February 01, 2011, 05:26:36 PM

Well the finished products will be stringers. I do have a live deck feeding the mill and a conveyor coming off the LT40 that picks up slabs or whatever im cutting. My mill is a super hydraulic 3 phase. I took all of the hydraulics off of it though and am going to run them off of my Brewco super edger. Im not sure about new style or old style. I can take some pictures and maybe you could tell me ;D I would actually like to do more then 100 but if not Ill be ok with whatever I can get. I will try to figure out the picture process and post some of my set up.

Bibbyman · February 01, 2011, 05:43:13 PM

By "new style" I mean with two-plane clamp and roller toe boards. The roller toe boards make it possible to roll the cant off the mill. Otherwise you have to do some lifting.

Keep in mind too, it's just me and Mary. We're both old enough to get the senior discount at the cafe without asking. So if you've got more help and energy, you're going to be able to out produce us.

So, what are you doing? Slabing two side on the WM and then sending them through the Brewco to make 6x8 or 7x9 or whatever?

I think we'd all like to see pictures of your setup.

Magicman · February 01, 2011, 08:39:26 PM

Quote from: jeremiahdixon on January 31, 2011, 05:15:55 PM
I am curious about how many logs I might be able to cut on my LT40 with 8' 8" avg dia 10" making 2 passes on each oak log?

With all of that production equipment, I'm curious about your original question ???

Slingshot · February 01, 2011, 09:35:35 PM

My answer would have been,..... "All of 'em, if you keep at it".

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Woodey · February 01, 2011, 10:20:17 PM

Bibbyman, I like your production setup.
How do you get the cants off the skate rollers ?

Bibbyman · February 02, 2011, 12:48:02 AM

Quote from: Woodey on February 01, 2011, 10:20:17 PM
Bibbyman, I like your production setup.
How do you get the cants off the skate rollers ?

I just tip them over onto a pair of skate rollers going the other way.

jeremiahdixon · February 02, 2011, 09:23:55 AM

Bibbyman, I am 2 siding the log to where I have a true 3 and a half inch middle piece. Then run everything through the edger, chop it, then going to a 2 head resaw with returns and power feed.
Magicman, I am hoping I have a good set up. Ive never worked in a milll before and really do no know much about the whole process or what to expect from it. Time will tell I guess.... ;)

Bibbyman · February 02, 2011, 09:31:42 AM

What are you doing with all the outside lumber? How are you handling that?

jeremiahdixon · February 02, 2011, 09:39:36 AM

Ok if you mean the top and bottom pieces? I am putting them through my edger too and going through the process. If I get any tie logs I have have a set of rollers that are pop up that will carry them off to a rack. Then the slabs off of it will be used for stringers as well. Sounds good anyway, not sure how everything will work out. Kind of why I was wondering what kind of production I might look to getting out.

customsawyer · February 02, 2011, 04:46:25 PM

Where are you located and what kind of logs are you cutting?

jeremiahdixon · February 02, 2011, 07:12:08 PM

Im located in south central mo and plan on cutting oak cant logs.

Bibbyman · February 02, 2011, 07:55:19 PM

You've got quite an impressive list of integrated equipment. Did you develop this system? Or is it "new to you"?

jeremiahdixon · February 02, 2011, 09:05:55 PM

Mainly just been modifying to what I believe will work best in my opinion. Ive got a partner helping me and lots of opinions from all directions. I took the hydraulics off of my LT40 for one because they seemed slow, and my edger has way more hydraulic power then it needs. I boughts a Morgan air chop saw and am in the process of turning it around to fit in my space and am hooking up all new cylinders and hoses. Few conveyor belts here and there, have built and modified some just plain ol paid for the others. Do not have the 2 head at my location yet but will get around to it in time. I have a Manitou rough terrain forklift that I used to build my building and set up the equipment so far. Will probably sell it soon, the mast is too tall to work for my needs. I also have a Prentice 210 with CTR bucksaw I am going to use to buck all of my trees from tree length to 8ft 8in logs. I have tried posting some pictures but isnt very easy for me to figure out.

customsawyer · February 03, 2011, 04:42:36 AM

The only thing that I can tell you is with my set up I have tried several times to get more production and the one thing I have found is the mill is not the bottle neck. There is something behind it or in front of it that tends to need improved on.
That is just my experience.

ljmathias · February 03, 2011, 05:28:28 AM

Yeah, mine too, and the bottleneck is usually ME! Just finished up a batch of live edge pine siding cut at 4/4 and 8+" wide- timed myself on it: once I had the log on the mill, I could cut slabs and boards at less than a minute each. Then it took about 3-4 minutes to scrape off all the sawdust and peel off bark with a slingblade, then stack on the FEL of my tractor to carry over for stickering: very, very time consuming when you work alone. Oh, well, the look when it's finally stained and hung is fantastic and well worth the effort.

Lj

jeremiahdixon · February 17, 2011, 09:56:02 PM

I finally got to turn my woodmizer on today. Well kinda, I guess we had the 3 phase wiring backwards and therefore the band turned backwards and locked up on me throwing the band off and rolling it around the pulley. OOOPS

Lessons learned.

WH_Conley · February 17, 2011, 11:05:01 PM

OOOK. Interesting fact about 3 phase I guess. Have to remember that.

isawlogs · February 17, 2011, 11:28:42 PM

Quote from: jeremiahdixon on January 31, 2011, 05:15:55 PM
Hi everyone, I am curious about how many logs I might be able to cut on my LT40 with 8' 8" avg dia 10" making 2 passes on each oak log?

Cutting two passes on 10 inche logs , you can easily cut two logs at once .. I think you can cut way more then 100 peices a day, if you have something to take those cants off the mill fast enough

Brucer · February 18, 2011, 12:40:42 AM

Quote from: WH_Conley on February 17, 2011, 11:05:01 PM
Interesting fact about 3 phase I guess. Have to remember that.

The electricians where I used to work could never be bothered tracing out the wiring when they were installing new motors. They'd just leave the motor uncoupled, hook up the wires, and run the motor. If it ran backwards they'd swap two of the wires. They said is was faster and easier than trying to trace everything.

I'm not sure if this was the approved way of doing it, but everyone in the plant did it that way.

kderby · February 18, 2011, 12:53:30 AM

Marcell good call on the two at a time. I can do that with this size log if I am not so picky about cut accuracy (getting a pair of "flat" faces on mediocre fence post grade material so it will stack/band/store/transport easily).

kderby

pa_of_6 · February 18, 2011, 09:17:47 AM

I would think that you should be able 20 logs an hour easily on the woodmizer mill, that is without and restrictrions feeding or offloading the mill.

Good labor is the key. You will have to figure out how many guys you need to allow you to attain the production you want.

You then will need to calculate what the return on extra manpower is.

If you are only getting 2 extra logs an hour by adding a fellow and paying him $14.00 per hour and getting paid 5 $ a log(after expenses).

You never did say how long your day was going to be either....8-10-12 hours..

junkorgem · February 18, 2011, 07:06:26 PM

Quote from: Brucer on February 18, 2011, 12:40:42 AM
Quote from: WH_Conley on February 17, 2011, 11:05:01 PM
Interesting fact about 3 phase I guess. Have to remember that.

The electricians where I used to work could never be bothered tracing out the wiring when they were installing new motors. They'd just leave the motor uncoupled, hook up the wires, and run the motor. If it ran backwards they'd swap two of the wires. They said is was faster and easier than trying to trace everything.

I'm not sure if this was the approved way of doing it, but everyone in the plant did it that way.

Hello all,
I've been reading this forum for at least three weeks and it's been very informative. I thought I would touch base on the three phase motor rotation subject.
It is perfectly acceptable to check rotation as Brucer described as long as equipment is not damaged. There are times when a rotation/phase meter is required, usually when working on an existing service. Say if you were to install a generator and transfer switch, you would need to be sure the generator was the same rotation as the service. There are some types of equipment that could be damaged by running backwards like scroll compressors and different types of hvac equipment. In the case of a bandmill I would simply remove the blade and "bump" it to determine rotation.

Magicman · February 18, 2011, 07:13:23 PM

Welcome to the Forestry Forum, junkorgem. Good luck with your sawmill build. It sounds like you bring some interesting knowledge to share with us. Where are you gonna get those 48" trees from to slab?