Forestry mulcher

[Ty Korrigan]

Hello,

 In compliment with a bio-mass job I've been asked to quote for, I need to remove the stumps.

My wee fsi20b is a gallant machine but faced with 6000m2 and some 400+ stumps it would be the 8th level of hell.

The stumps will be from trees no larger than 35cm dbh and most at 25cm dbh. A mix of Douglas, bird cherry and red oak.

Lots of brash underfoot too.

So before I go off calling up firms and making rendevous, I need to know what I am looking for.

My question is, how large a mulcher in hp is required to effectively deal with the stumps in situ? 

 

 Thanks in advance

    Stuart

 

 

[aspenarb]

Can you not rake up the brash, grub out the stumps and  process them in with the biomass?

 

Bob

[Ty Korrigan]

I've already quoted for stumps to be dug out with a 25t 360 and arranged in a long habitat pile.

Trouble is I'm dealing with a couple and they are not reading from the same script.

The biomass chipper can't deal with the stumps.

They would need to be broken up to remove the soil and decrease the volume before being removed some 25km to a depot where a Bandit Beast awaits.

The Beast cannot access the work site though.

The cost implication of removing the stumps from site is prohibitive.

 

[openspaceman]

1 hour ago, Ty Korrigan said:

Hello,

 In compliment with a bio-mass job I've been asked to quote for, I need to remove the stumps.

My wee fsi20b is a gallant machine but faced with 6000m2 and some 400+ stumps it would be the 8th level of hell.

The stumps will be from trees no larger than 35cm dbh and most at 25cm dbh. A mix of Douglas, bird cherry and red oak.

Lots of brash underfoot too.

So before I go off calling up firms and making rendevous, I need to know what I am looking for.

My question is, how large a mulcher in hp is required to effectively deal with the stumps in situ? 

 

 Thanks in advance

    Stuart

 

 

Assuming stumps out of ground: I don't know what comes in between but a wheeled Plaisance and tracked Awhi 400 would mince them easily, both have  about 400hp, the little ASV RT100  (100hp) would boil the oil and give up but may just about manage the stumps if taken slowly. The Awhi on 3 point linkage  on a Valtra T 190 would manage  them  with a sympathetic driver. These are the only mulchers I have driven and that was 10 years ago. There's a video on youtube of me planing off a 60cms  pine stump with the Awhi 400.

[Ty Korrigan]

Got a link?

 

[Ty Korrigan]

How effective are forestry mulchers on stumps?

As against stumpgrinders...

 Stuart

[swinny]

I would have thought grub them out with a digger and line / pile them up then mulcher them

[swinny]

Tub grinder? 

 

https://m.youtube.com/watch?v=LcCwTzrC3-I

[Ty Korrigan]

Got a Bandit Beast in the yard of the company I use but access is the issue.

 

[aspenarb]

28 minutes ago, Ty Korrigan said:

How effective are forestry mulchers on stumps?

As against stumpgrinders...

 Stuart

It really does hinge on what your customer is expecting, a tractor mulcher will bash the tops off the stumps in situ and level the brash, its never going to be a lawn. For a better finish as its only four hundred stumps I would probably grind them with the big stump grinder and mulch the brash. Power rake and burn the lot is another option.

 

Bob