New tier 4 diesels on woodmizers

redneckman · December 28, 2020, 06:07:55 PM

Hello everyone. I know what I'm getting ready to ask has probably already been discussed in depth. However, I haven't had much luck looking for it. I am wondering if any of you are running the new tier 4 Yanmar on Woodmizer mills. If so, can you comment on your experience with it good and bad. I am thinking about buying one, and the new tier 4 concerns me. I have the tier 3 47 hp on my LT 50. I love it.

terrifictimbersllc · December 28, 2020, 06:44:58 PM

Yes on my mill. No issues, 500 hr have only seen running regens so far. I like that it is clean and quiet. Didn't really have a choice.

YellowHammer · December 28, 2020, 09:08:40 PM

I have a Tier 4 on my LT70. I've had zero issues, and its pretty good on fuel. Actually, in seems to burn about the same as my older LT40 diesel.

redneckman · January 01, 2021, 08:49:29 AM

Quote from: YellowHammer on December 28, 2020, 09:08:40 PM
I have a Tier 4 on my LT70. I've had zero issues, and its pretty good on fuel. Actually, in seems to burn about the same as my older LT40 diesel.

Yellowhammer, how do you like your LT 70? Everytime I mention upgrading to a LT 70, my local Woodmizer rep tries to talk me out of it. The last time we spoke about it, he said it was hard to learn. I doubt that.

Southside · January 01, 2021, 08:56:56 AM

I got the same feedback from another WM location when I was looking at mine. Yes operating it is very different than any other portable WM mill, took me probably two weeks to get really comfortable with everything as many buttons perform multiple functions and the operator has a lot of options on what can be done, but once you get past that you will never want to go back to operating the traditional style or Accuset II for that matter.

PA_Walnut · January 01, 2021, 09:04:53 AM

Tier4 here. Works great, mostly transparent. You can hear it groaning a bit when doing a regen and a slight power loss, but nothing dramatic.

My Kubota tractor, whole other matter: PITA, insistent and persistent when wanting to regen, etc. I just park it, rev it up and walk away while it deals with the nonsense. Silly.

farmfromkansas · January 01, 2021, 09:12:16 AM

How long have they been building the tier 4 diesels? Know some of the older ag tractors had problems, but they may have gotten the bugs out by now. Have a neighbor who bought a new AGCO tractor, had to overhaul the engine at very low hours, but that was a few years ago.

KenMac · January 01, 2021, 10:29:34 AM

When y'all are talking about regen are you referring to the engine using the DPF fluid to clean the exhaust system, whatever the name is. I have a Perkins 67 hp diesel made in 2018 that doesn't require the DPF fluid. Just curious. At one time I was a certified diesel mechanic, but that was before all of this crap came about and then changed trades. HVACs have other issues all together.

terrifictimbersllc · January 01, 2021, 10:45:06 AM

There's no DPF fluid. Regen is an operation where it heats the catalytic converter apparatus to 1300° or so Fahrenheit in response to detecting an increased soot load in that filter.A running regen is when it happens automatically while you are sawing.The stationary regen is when you have to send it into that mode and cannot use the machine otherwise until it is finished. I haven't seen a stationary regen yet in 550 hr

Bruno of NH · January 01, 2021, 12:01:57 PM

I wish Woodmizer would put on a Kubota liquid cooled gas as engine as a option.
30 horsepower.
Looks like to me Kubota and Woodmizer had some falling out ?
I like my Kohler 38hp just wish it was liquid cooled.
I think Kawasaki makes liquid cooled gas engines.

pineywoods · January 01, 2021, 12:50:03 PM

Yes Bruno, kawasaki does make some nice small water cooled gas engines. I have a 25 hp kawasaki v twin water cooled on my wm Lt40, replaced an old briggs. I love it as long as I stay away from the corn juice.

YellowHammer · January 01, 2021, 01:03:13 PM

Quote from: redneckman on January 01, 2021, 08:49:29 AM
Quote from: YellowHammer on December 28, 2020, 09:08:40 PM
I have a Tier 4 on my LT70. I've had zero issues, and its pretty good on fuel. Actually, in seems to burn about the same as my older LT40 diesel.
Yellowhammer, how do you like your LT 70? Everytime I mention upgrading to a LT 70, my local Woodmizer rep tries to talk me out of it. The last time we spoke about it, he said it was hard to learn. I doubt that.

@redneckman
100% its the best control system I've used, with the engine driven LT70 is super fast and easy. It doesn't take much time to learn the system, it takes time to unlearn the old system. I took to it pretty fast and love it.

Mine regens occasionally, its totally transparent to the operator except there is a little smell.

When I called my sales rep and told him I wanted to upgrade to the LT70, he said he was wondering why I hadn't called earlier.
The 70 Super itself is a very fast mill, I did a video recently sawing poplar and, by myself, was on a 1,000 bdft per hour pace, which is pretty relaxed sawing for this mill.

boonesyard · January 01, 2021, 01:34:51 PM

This tier 4 yanmar regen is absolutely no issue. I also have to frequently start this engine when it's very cold and it has never failed. Good power plant

SawyerTed · January 01, 2021, 03:46:01 PM

@redneckman let me know if you decide to sell the LT 50. I may be interested in it. I'm not far from you.

redneckman · January 01, 2021, 09:21:34 PM

Quote from: SawyerTed on January 01, 2021, 03:46:01 PM
@redneckman let me know if you decide to sell the LT 50. I may be interested in it. I'm not far from you.

I'll do it! My mill is a fine mill. Plus, it's a wide head. It has loads of power and saws great. I've been getting 6, 8, 10 BF jobs here lately. I would like to upgrade to a 70. At very least another LT 50 with the controls at the front. Thanks everyone for the input. It makes me feel better about the new engines.

Beavertooth · January 02, 2021, 09:06:14 PM

Redneck Man if you ever were to you use the LT70 with the controls at the end of mill so you can saw with the mill coming towards you you will never again want to saw with the head going away from you. That is one of the greatest features of the LT70 is being able to saw with head comeing to you. You can see everything so much better and all the slabs and lumber goes off the other end of mill where some other poor unfortunate soul has to deal with it. :D :D :D Seriously I would hate to have to go back to sawing any other way. I bought an LT40HD in 2005 and my LT70 in 2007 and sold my LT40 in 2010. Don't let anyone tell you that the LT40 Super or the LT50 is just as fast or as the 70. The LT70 is a completely different machine ..

Southside · January 02, 2021, 10:47:53 PM

True that - and the Super 70 is all that and then some.

redneckman · January 05, 2021, 02:52:30 PM

Well guys, Ive decided to pull the trigger again and ordered a new super 70. For you guys that run these, what blade width are you running? The Woodmizer guy said they would run up to a 1.75" blade. Personally, I really like the wide blades over the narrow ones. I run 1.5" blades on my LT 50..

For anyone interested, my mill will be going up for sale late Spring 2021. New mill will not be here until July. Today, it has 790 hours on it.

terrifictimbersllc · January 05, 2021, 05:33:40 PM

I run 1-1/2" 055 7 turbos from woodmizer. 195" , they have 223 teeth. Cuts everything. That's what I recommend. I got a free 1-1/2 045 7 turbo carbide blade and used it to cut about 3500 bf of cedar siding from cedar power poles. In contrast, the 7 turbos dulled after about 300 bf. I ordered 5 more of the carbides, haven't used them yet, they're a specialty use thing because my customers have to agree to $80 blade charge if hit metal instead of $35 charge for the double hard blades.

I also bought some 1-1/2" 055 7/40 Kasco blades from Richard Cutting edge and a 4/40 wheel to resharpen them to after using them once. These as either 7/40 or 4/40 are great blades, but neither cut knotty spruce any better than turbo 7's above, which is what I was hoping they would.

Southside · January 05, 2021, 06:13:56 PM

Been running 1.5" but have some 1.75" on the way to try out.

Bandmill Bandit · January 05, 2021, 08:28:21 PM

I'd like to see Woodmizer offer thr Stage 4, Tier 4 Volvo Penta engine as a power option. That engine the best Tier 4 engine available right now in my opinion. It is so clean and efficient it doesn't even need a regen system.

https://www.volvopenta.com/industrial/benefits/emission-technology/stage-iv/

I have run a couple of them in Volvo and JCB machines. They are impressive all around and economical.

YellowHammer · January 05, 2021, 10:45:41 PM

I run .055 x 1.5 Turbos for everything. Also, I can't tell a dimes worth of difference between the WM Double Hards or the WM Silvertips, which I guess are just single hards.

Wait, there is a difference. The Silvertips very rarely fatigue crack and they are $23 each instead of $42 each.

The LT70 Super has engine driven hydraulics, and the speed of the hydraulics can be controlled, to a point. If the engine is in idle, the hydros run at about the same speed as a Super. However, if throttled up, the hydros run many times faster.

KenMac · January 05, 2021, 10:48:55 PM

My Cook's AC36 has a 57 hp Perkins engine and I can find no mention of any "regen" in the manual and have not seen or noticed any difference in its' operation in 290 hours. I reserve the right to be wrong. I thought I was wrong once, but was mistaken.

KenMac · January 05, 2021, 10:50:48 PM

Correction---67 hp Perkins. I feel better now that I broke the ice!

terrifictimbersllc · January 06, 2021, 07:28:46 AM

Quote from: YellowHammer on January 05, 2021, 10:45:41 PM
I run .055 x 1.5 Turbos for everything. Also, I can't tell a dimes worth of difference between the WM Double Hards or the WM Silvertips, which I guess are just single hards.

Wait, there is a difference. The Silvertips very rarely fatigue crack and they are $23 each instead of $42 each.

The LT70 Super has engine driven hydraulics, and the speed of the hydraulics can be controlled, to a point. If the engine is in idle, the hydros run at about the same speed as a Super. However, if throttled up, the hydros run many times faster.

I get blades 60 at a time, 15% off with free shipping. Those not familiar this is standard Woodmizer quantity pricing.
The Doublehard 195 055 1.5 blades come out to $30.68 each.
Silvertip and Kasco equivalents are about $27 each.