Woodland Mills WC68 Chipper
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ericm979
Super Member
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- Santa Cruz Mountains CA, Southern OR
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My Woodmaxx 8H was like that. I posted here and got advice that maybe the flow control valve was oversized. Hydraulics texts also said the same thing. I searched for the model number of the no name made in China valve and found it was a 20 gpm model. I talked to Woodmaxx and they told me that the hydraulic system is 3 gpm. So the valve was oversized. I found a 5 gpm replacement from a well known company that bolted right on. It's now easily controllable to any feed speed setting.
jonsstihl
Veteran Member
I have 39HP PTO and I run my wc68 full speed and I haven't had to drop the speed down yet but I'm not usually chipping full 6" logs either but I have put a couple big softwood branches through. hardwood becomes firewood.
JimRB
Veteran Member
I am posting a me too about dull knives in a WM68. Great with new knives, feed is frustrating when the knives get dull. Flip the knives over to the unused side and the feeding is great again. I have used my 5 inch grinder to freshen up the knives. I do not have that coveted surface grinder to properly wet grind.
I also do not find the hydraulic feed rate control to be as adjustable as desired. I have bogged out my 28 PTO HP feeding some 6 inch stuff. Actually if I do adjust the feed rate down it does pretty good with the big stuff. Also getting those "bigger" trees in the feed is a challenge.
I chopped down some pines and cedars. I have not observed clogging.
I also do not find the hydraulic feed rate control to be as adjustable as desired. I have bogged out my 28 PTO HP feeding some 6 inch stuff. Actually if I do adjust the feed rate down it does pretty good with the big stuff. Also getting those "bigger" trees in the feed is a challenge.
I chopped down some pines and cedars. I have not observed clogging.
oosik
Epic Contributor
I've had two "gravity feed" Wallensteins. First the BX42S - now the BX62S. I use them to chip the small pines ( 1" to 6" on the butt ) as I thin my stands. About every two years I will chip 800 to 1000 of these small trees. I ONLY chip pines. For that matter - Ponderosa pine are the only trees on my land..
I've had the BX62S for ten years. So.... about 5000 small pines thru this bigger chipper. Because they are green, soft and without any dirt or rocks - the knife blades are still sharp as razors.
Yes - the chipper will jerk the tree right out of your hands. It will actually frighten those who have come out to help.
Butt first - right down the infeed chute. Never any need to trim branches.
It is powered by my Kubota M6040.
When I bought the BX62S - I considered getting the larger Wally chipper. I think it was the BX92S. Then I realized - a 6" green P. pine was about all I'm capable of man-handling. A 6" pine - 20 feet long or longer and trying to weave your way thru a sea of fallen pines. It's an absolute recipe for a fall.
And believe me - I fall frequently dragging these fallen pines to a collective pile.
I've had the BX62S for ten years. So.... about 5000 small pines thru this bigger chipper. Because they are green, soft and without any dirt or rocks - the knife blades are still sharp as razors.
Yes - the chipper will jerk the tree right out of your hands. It will actually frighten those who have come out to help.
Butt first - right down the infeed chute. Never any need to trim branches.
It is powered by my Kubota M6040.
When I bought the BX62S - I considered getting the larger Wally chipper. I think it was the BX92S. Then I realized - a 6" green P. pine was about all I'm capable of man-handling. A 6" pine - 20 feet long or longer and trying to weave your way thru a sea of fallen pines. It's an absolute recipe for a fall.
And believe me - I fall frequently dragging these fallen pines to a collective pile.
Last edited:
PEJ5
Gold Member
I bought the WM WC68 about 5 years ago. It works very well. For the most part I have been chipping branches off of dead trees. Last December we lost 30+ trees to a major wind storm and recently we have been clearing an area to build a house. We do not have time to let the branches sit and wait for the needles to drop off. Needles on branch ends have clogged a few times over many hours of operation. To overcome this I feed the next branch in just as the heavy needles from the last branch are going through. The chips from the next branch keep the chute cleared - very effective!
I have yet to flip my cutters. I have adjusted the hydraulic pressure relief valve once based on this video.
I've been gone for a couple of weeks and no cel service. Back home now and want to report on new info.
The day before I left I decided to pull the knives out of the chipper and give them a good look. I found that despite my attempts to sharpen them when they mounted on the chipper, they were not very sharp. So I took them off and into the shop where I used my adjustable grinding table to set the angle and slowly sharpen them. One of the knives appears to have hit the anvil at some point and was in pretty rough shape. I got 3 blades razor sharp (my cut finger will attest to that, lol). The 4th, damaged blade was in much better shape but not perfect. I mounted them and tried the chipper briefly, as I didn't have much time before I had to leave. It seemed to be working like it used to but I will need to give it a longer workout to make sure. Maybe when the rain stops. I am pretty sure that was the problem and will be ordering a new set of blades and anvil.
I cancelled the order for the WC68.
The day before I left I decided to pull the knives out of the chipper and give them a good look. I found that despite my attempts to sharpen them when they mounted on the chipper, they were not very sharp. So I took them off and into the shop where I used my adjustable grinding table to set the angle and slowly sharpen them. One of the knives appears to have hit the anvil at some point and was in pretty rough shape. I got 3 blades razor sharp (my cut finger will attest to that, lol). The 4th, damaged blade was in much better shape but not perfect. I mounted them and tried the chipper briefly, as I didn't have much time before I had to leave. It seemed to be working like it used to but I will need to give it a longer workout to make sure. Maybe when the rain stops. I am pretty sure that was the problem and will be ordering a new set of blades and anvil.
I cancelled the order for the WC68.