Chipper Woodmaxx vs Jinma chipper

[Dennis Petersen]

I am going to buy a Kubota how many horse power do I need to run this Woodmaxx hydrolic feed chipper.

[idaho2]

Dennis,

Woodmaxx web site specs says 25+ pto hp to run the 8" hydraulic unit. All the info you need is there.

idaho2

[Reg]

Dennis,

Woodmaxx web site specs says 25+ pto hp to run the 8" hydraulic unit. All the info you need is there.

idaho2

Not sure about this, but my GUESS is that anything that can LIFT it can probably RUN it (-:
IOW, with a less than 25 HP tractor you probably can't move this thing anyway.

[ericher69]

Dennis,

Woodmaxx web site specs says 25+ pto hp to run the 8" hydraulic unit. All the info you need is there.

idaho2

A b2920 is 21 PTO HP

[Agent Blue]

I would like to see the video of a 25hp tractor running an 8" chipper. For sticks and branches under 2" probably will work. The idea of a 8" chipper is the hardwood branch that is 4 or five inches in diameter going through without stopping or plugging the chipper.
I have a 8" Bearcat this is powered by a 55hp New Holland diesel. On a decent sized branch I can slow and plug the unit by feeding it at a normal pace. Don't be fooled...... it takes power and torque to run one of these machines... not fantasy figures. If you sticking to 2" or less branches get a DR Chipper with a 8 hp Briggs.

[PecosAllis]

Woodmax 8" Hydraulic Feed is the best!.($2,800) I did own a DR 8" self feed (LOL) wood chipper (>$4,000) sold it at a loss. I purchased the Woodmax July 2012 and within 2 weeks of owning it i chipped more with it than I did in the 4 years I owned the DR chipper (too much work with DR). I can hardly wait for spring to continue clearing and thinning my property. My family also lives next door and so we all use it. Yes it is an 8" chipper but if you believe that you can pick up logs to put in it, all I can say is good luck. We burn anything in our woodstove 4" or greater. The logs or branches that are soft and rotten that are 8" yes it has done it, but not something I would not do all the time. My old 1959 Allis powers the hydraulics great. I love my Woodmax and I dont think I will have to buy another woodchipper.

[PecosAllis]

[Baby Grand]

I have a 26.5 PTO HP tractor that I have stalled trying to run a weedy maple stem that just fit in my 4.5"
chipper. What I learned is that the slip clutch needs to be adjusted right or you twist your PTO shaft like a candy cane.

[Freytm]

I also have a B2920, how's the chipper running these days? I am in the market and trying to figure out what is the best option for my Kubota. Is the hydraulic drive just too much HP for the B2920 PTO?

[Reg]

I also have a B2920, how's the chipper running these days? I am in the market and trying to figure out what is the best option for my Kubota. Is the hydraulic drive just too much HP for the B2920 PTO?

At a GUESS that 25 HP requirement is for it to digest its maximum capacity, i.e. 8 inch branches - though in my opinion those are "logs".
Duhh, somebody help me with the arithmetic on this; Isn't power required some function of the cross sectional AREA of what you feed ?
(assuming same linear feed rate)
8 squared = 64, 6 squared = 36; from which I would guess it takes 9/16 the power to chip 6 inch branches that it takes to chip 8 inch.
If that is the case (IF) then ~14 HP would probably chip 6 inch stuff about as easily as 25 HP chips 8 inch stuff.