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Author Topic: Woodland mills clutch upgrade ??? bigger engine, but what clutch?  (Read 6819 times)

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Offline mattyo5

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So, lets say, for argument sake, I'd like to have a little more oomph from my WM hm126.  I've sawed quite a few BF with this thing, but I've the tinkering bug. 

So, anyone know what centrifugal clutch is on it stock?   because right now I think its slipping a bit.  the bandwheels stop sometimes and the engine isn't even boggy


2nd thing.  what if I manage to upgrade the motor, to say... 18hp -20hp.   what centrifugal clutch to buy?  I've been spending a PILE of time searching, and a 1" bore 20hp centrifugal clutch seems to be elusive.  what product, from what distributer?   (yes I know cooks mills have a belt engagement etc etc and that I should upgrade to that, but thats WAY more work than my tinker bug is gonna take me right now). 

ideas?  am I just not searching in the right places?

-Mattyo
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline losttheplot

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #1 on: February 29, 2016, 12:28:22 AM »
My Lumber mate 2000 has a centrifugal clutch.
It is the same clutch 13 up to 23 hp.
When I needed to replace it, I google searched the brand name and part number I think it was rated for around 8 hp.
I ended up getting a replacement from Norwood as it was the most cost effective here in Canada.
The new ones don't have any markings on them.

My clutch will slip if the RPM's drop. I put a tiny tach on it and keep the rpm's up and the clutch does not  slip with a 20hp motor.

DON'T BELIEVE EVERYTHING YOU THINK !

Offline fishfighter

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #2 on: February 29, 2016, 06:48:41 AM »
Will be watching this thread with interest. ;D Tinkering mines want to know. :D

Online btulloh

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #3 on: February 29, 2016, 07:56:07 AM »
Also curious about this.  I'm wondering if the wheels and such will take more hp.
HM126

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #4 on: February 29, 2016, 07:58:31 AM »
Ok...so this is what I've come up with.   I can find the 8hp rated ones no problem. ...for about $80 or so.  But to get one rated at up to 18hp, I'm looking at $300 for a Noram 1800 series....which are not easy to find btw. 

I'm going to call Woodland Mills today and see what they say.  Seems to me there is a gap in the market here somehow. 

SOMEONE has to know what the OEM is in the Norwood, or Woodland Mills or any of the others that use centrifugal clutches.   
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline 21incher

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #5 on: February 29, 2016, 06:03:39 PM »
Surplus center has some 1' shaft clutches rated at 13 hp.
Hudson HFE-21 on a custom trailer, Deere 4100, Kubota BX 2360, Echo CS590 & CS310, home built wood splitter, home built log arch, and a logrite cant hook.

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #6 on: February 29, 2016, 10:07:53 PM »
Again, sorry to the mods.  The links were posted for reference, not for leverage to or for anything/anyone else. 

If anyone else has something add about finding sources for centrifugal clutches for mills I'd love to hear it.

anyone take apart a woodland mills clutch?   I may have to do it asap, as mine is slipping. 
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #7 on: February 29, 2016, 10:11:38 PM »
So my summation post got deleted.  I will repost w/o ebay links.  So far, I have come up with the Hillard Extreme duty available from:

http://www.mfgsupply.com/gomini/gominiclutch/gominiclutchutility/gominiclutchutilityhilliard/h1p3.html

rated to 13hp, 1" shaft.  For $69, seems the one to get.   $80 for the one from Woodland Mills, and they said theirs IS rated for their 9.5hp engine. 

If I want to go bigger, then there is one on ebay, search for 24hp centrifugal clutch.   its blue.  $199+ship. 

or an 18hp rated one which is made by Noram, 1800 series.  https://www.jsesc.com/catalog/product.aspx?CODE=NOR180007

If anyone has anything else I'm all ears.   Thanks!
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline NeilB

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #8 on: March 02, 2016, 04:05:41 PM »
Hi Mattyo5,

If the blade or band wheels are stopping/slowing down during the cut, but the engine is still at full RPM, there is a good chance your drive belt is loose or worn. You may want to just take a quick look at it firstly and either tighten it or replace it. If the belt isn't tight and it starts slipping on the clutch, you can wear out a belt (possibly the clutch) quite quickly. Just something you may want to look at first...

Neil
Neil B
Woodland Mills

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #9 on: March 02, 2016, 04:30:27 PM »
Good point.  It is quite worn.  I'll replace it, then see if I still have the issue. 

I have an extra couple of belts for the single bandwheel, somehow I bought bx58.   too big.  bx57 is what I want right?   I have bx77 for the drivewheel.
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline NeilB

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #10 on: March 02, 2016, 05:01:15 PM »
The BX77 is the drive belt for sawmills before 2015. BX58 is the right size, but a BX57 will fit, it's just tight to get on. It would be the BX77 drive belt that would cause you the most grief regarding the blade slowing down, but the other one is important to check for wear also...
Neil B
Woodland Mills

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #11 on: March 02, 2016, 05:27:45 PM »
The bx58 that I have is WAY too loose.  I'll get a 57 and see what happens.  Thanks

the bandwheel measures 18.75" across btw...  18.75x3.14 gives an circumference of 58.75"   a bx57 belt has an outer circumference of 60" and a 58 has 61" ... 

I'm not exactly sure of how belts are measured, but for sure the bx58 is too loose on the bandwheel. 
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline NeilB

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #12 on: March 03, 2016, 08:29:09 AM »
Yes, the BX58 will run loose, but will not cause any issues. Using a BX57 or BX58 is fine.
Neil B
Woodland Mills

Online btulloh

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #13 on: March 03, 2016, 08:32:12 AM »
NeilB - Do you see any problems with adding more hp to the hm126?
HM126

Offline NeilB

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #14 on: March 03, 2016, 11:02:44 AM »
I know others have done it and not had issues in doing so. We have not tested a larger engine on this saw head ourselves, so I couldn't give you direct advice on doing so. You may be able to ask one of the Woodland Mills owners on the forum who have done it to see what their experience has been though...
Neil B
Woodland Mills

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #15 on: March 03, 2016, 05:53:32 PM »
Out of shear curiosity, do you have any experience glueing a belt to the bandwheel.... like say with super77 , or contact cement? 
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Offline 47sawdust

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #16 on: March 03, 2016, 07:21:33 PM »
WM belts run loose with no problems.
Mick
1997 WM Lt30 1999 WM twin blade edger Kubota L3750 Tajfun winchGood Health Work is my hobby.

Offline Magicman

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #17 on: March 03, 2016, 07:27:26 PM »
Out of shear curiosity, do you have any experience glueing a belt to the bandwheel.... like say with super77 , or contact cement?
I am curious as to why you would ask.  See Reply #12 above, and as just mentioned; WM runs loose belts.   ???
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic   WM Million BF Club Member   WM Pro Sawyer Network

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline mattyo5

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #18 on: March 03, 2016, 10:10:55 PM »
I have crazy random thoughts, thats all.  seems silly to have a loose belt.  the original one isn't that loose.  but whatever, i'll post my results when I get the mill fixed up. 
Woodland Mills HM126 Sawmill - modded
Husqvarna 385xp rebuilt and ported
Husqvarna 372xp rebuilt and ported
2x Husqvarna 350 ...rebuilt and ported
Hitachi CS33etdb top handle saw

Online btulloh

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Re: Woodland mills clutch upgrade ??? bigger engine, but what clutch?
« Reply #19 on: March 04, 2016, 08:30:14 AM »
The belt on the non-drive wheel runs loose by design.  It helps keep sawdust off the blade and bandwheel.  This is referenced in the 126 owners manual.
HM126


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