Which crusher to produce BRF (Raméal Fragmented Wood)?

Agriculture and soil. Pollution control, soil remediation, humus and new agricultural techniques.
Ahmed
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Re: What mill to produce BRF?




by Ahmed » 02/06/18, 16:15

I am not convinced that there is a high risk of pests or diseases, because fungi occupy the field and are extremely effective. The recycling aspect of the material with the same seems to me quite coherent, since it corresponds to the specific needs of the plant concerned. The other explanation is more trivial: I want to cut down several black walnuts that are near my two walnut trees, so ... 8)
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guibnd
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Re: What mill to produce BRF?




by guibnd » 02/06/18, 16:59

Ahmed wrote:I am not convinced that there is a high risk of pests or diseases, because fungi occupy the field and are extremely effective. The recycling aspect of the material with the same seems to me quite coherent, since it corresponds to the specific needs of the plant concerned. The other explanation is more trivial: I want to cut down several black walnuts that are near my two walnut trees, so ... 8)

yes, logical, the shortest way ... we are lazy or we are not : Lol:
and indeed, what better than to restore to a walnut ... walnut
yes you're right, I put ideas in my head sometimes! diseases and fungi, even deposited at 20m, can also be transported under the soles : roll:
me, I put 10m between each walnut, must it at least, I have a cushy 49 years is very impressive!
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Twandering with clayey and fertile wheat, full of water in winter, cold in spring, crushed and cracked in summer,
but that was before the Didite ...
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Re: What mill to produce BRF?




by Ahmed » 02/06/18, 17:50

Bah! And then the walnut is beefy, with its chemical defenses, it is safe from a lot of pathogens ...
Ten meters, yes, it is prudent, considering the size of the adults ... Fifty years, that must start to make indeed a beautiful "cushy"! :D
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Re: What mill to produce BRF?




by guibnd » 03/06/18, 12:48

when I grind laurel palm (rarely but I tried once), there is a strong smell that emerges!
it smells like glue it seems to me
why this smell so strong? is the laurel mash is interesting or at least not bad?
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Twandering with clayey and fertile wheat, full of water in winter, cold in spring, crushed and cracked in summer,
but that was before the Didite ...
Ahmed
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Re: What mill to produce BRF?




by Ahmed » 03/06/18, 22:26

Many trees and shrubs contain odoriferous substances that are often chemical compounds intended to protect them from predators, so walnuts exhale a strong, characteristic odor, juglone.
The first time I spread crushed mash in my garden, it was cherry laurel that a landscaper had given me (it was what he had on hand) and I was not dissatisfied with the result, even if it was not what I would have preferred ...
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Re: What mill to produce BRF?




by Ahmed » 13/10/18, 21:33

These days, crushing weeping willow branches. Production of a lot of shredding tails: the thin twigs of the ends are ejected beyond the pile because although they are thin, these strands have a greater mass because of their length and accumulate more energy during the ejection. As I know that the knives have suffered a lot of outrage due to many grinding sequences, I decided to make a sharpening before continuing. Well take me, because I immediately see an improvement in terms of speed and the removal of shredding tails: everything is projected on the job in a uniform manner. It is therefore an important parameter to take into account before qualifying the grinding behavior of a plant.
It is therefore important to remain vigilant on the cutting quality of the blades, especially since the degradation of this property is gradual and does not manifest too obviously, insofar as the machine continues to swallow without too much rechignition .
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Re: What mill to produce BRF?




by eclectron » 12/03/19, 16:11

Ahmed wrote:
Which plants do you want to treat?

All if possible.
Tree size (ash, willow, linden, maple, poplar and sometimes fruit and bamboo), so branches 6 to 8 cm max max at the base. I would probably rather log up to reduce the diameter of the branches 4 or 5 cm.
On the other hand I have a lot of hedge size too, including Leyland's cypres
and leafy in a very varied hedge (eleagnus, troene, deutzia, vegelia, fosithya, syringat, hazel, laurel of the Caucasus, I must forget lol)
As trimming hurdles do not fascinate me, I often leave. Sizes can be + 1m in length.
It does not exceed 1 2 cm in diameter, the privet does even less.

Ahmed wrote:
I think the larger model is likely to swallow more volume per unit of time, but in practice, as you can see, the limiting factor is the operator and the shredder runs empty quite often through compared to the phases in load, also two operators improve the occupation rate of the machine.

Yes with the rental crusher we were 2 too and I confirm that the knives must be sharp, it changes everything. (seen in the thread of the subject)
I also saw that you did a lot of adaptations and that you handle well the welding on metal. Hat!

Well now I hesitate between the big and the small model now ...
Because apart from my big pile (3 years of pruning surely composted for what is on the ground) I should not spend a big section.
In 2 years I would have decided! :D
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whatever.
We will try the 3 posts per day max
Ahmed
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Re: What mill to produce BRF?




by Ahmed » 12/03/19, 19:24

Everything you quote passes without a problem in the crusher and provides a very correct grind. Softwood is also not a problem: I have just successfully passed a very large volume of Douglas branches and I have previously grinded cedar and spruce ...
I have a large thuja site in my sights: a hedge which has taken on considerable proportions and which I will "eradicate" permanently (I burn the pieces that I do not grind in my stove and I find that it is a good fuel).
As for your big old pile, we must see if its seniority does not make dry wood, because the mill is not designed for that, it requires a much greater effort than green wood: try with a secateur in comparing stems of the same diameter. Well, a little dry not too big anyway, but do not overdo it ... If it is partially rotten and very wet it will work properly; you must try.
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Re: What mill to produce BRF?




by eclectron » 13/03/19, 08:43

Perfect if everything goes.
For dry wood, there is, for sure ... I would see, I would make the log with large sections, if that's a problem, I do not know what's underneath .. .
With a shredder home I have time to sort, while when it is a shredder rental, it must pay for the day, no time to sort or cut.
As I did the heap in anticipation of the shredder that passes 15 cm, even 8 dry cm passes well when he is well honed.

On reflection, I think I'll go for the big one, it will be more tolerant and I wouldn't regret having taken the small one and then saying to myself "too bad it is not a little more powerful".
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whatever.
We will try the 3 posts per day max
Ahmed
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Re: What mill to produce BRF?




by Ahmed » 13/03/19, 10:28

I must tell you that I also have a good experience in large chippers and especially in medium, since I used one for several years: model hitched behind tractor, disc, hydraulic roller drive; cutting capacity about 18 cm in diameter. I made a few woodchips (there you need big!) And crushed a lot of cedar hedges. For this last use, it behaved well, but in general it is not very suitable for small green waste, since the rollers push the material against the knives and therefore it does not work well for what is flexible => tendency to jam.
You will see that with the kind of machine that you plan to "adopt", you can even grind soft plants or semi-woody stems, like hollyhock stems, contrary to what the seller's site claims (from made approximate translation, this wood chipper is cataloged in the chippers of plants, which is denied in the body of the text : Cheesy: ).
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