I had a Performance Power one eventually gave it away, it did OK on branche
s up to 30mm but seemed to struggle to chip up green stalks and leaves the
most frustrating thing about it was the time it took made even longer by ha
ving to unclog it every so often. In the end it was quicker and easier to c
ut up branches into lengths easily transportable in the car and take to the
Yes the one the council used last Thursday was on a large truck and powered
by a powerful engine, and was extremely noisy. If you have a lot to do
hiring one of those for a couple of hours might be the best approach, but
give your neighbours ear plugs first..
This newsgroup posting comes to you directly from...
I hired an electric one for half a day that was pretty quiet and
handled largish branches with ease while not clogging with the small
green stuff. The cheap one I got (can't remember if it was dirt cheap
on eBay or free from Freegle) makes a load of noise, struggles with
larger stuff and clogs easily with green stuff. The difference is that
the good one runs at low speed and pulls wood through and chomps it,
while the crap one is just a spinning disc on a motor and you have to
shove stuff through to feed it.
I have a Bosch ATX-25 TC shredder, one of these
https://tinyurl.com/y5nfm6ms , which claims to be able to shred
branches up to 45mm, although IME that might be a touch optimistic,
but not a lot. I am reasonably pleased with it. If I have any
criticisms they are that you can't immediately see how full the
collector is getting, and it can be a little awkward to remove it for
emptying when it is full. The so-called 'turbine' cutter does
sometimes get bunged up with hard shreddings, necessitating a complete
halt in the proceedings while the cover is opened up and the turbine
It replaced an earlier Bosch shredder with a corkscrew-type blade,
that couldn't handle such large branches, and anyway the blade had
become chipped over the years. But it had an open discharge that you
simply put a bucket under, much simpler and easier than the ATX-25.
Anything bigger than 40mm I either take directly to the dump for their
green waste recycling skip, of just pile it up in an unobtrusive
corner of the garden to house beetles or other bug life.
I have an earlier version which IIRC was rated to 35 mm although 30 is
more realistic. Mine is the "noisy" design which has a flymo-like blade.
They get through stuff at an amazing rate until the blade gets blunt, at
which point you reverse it. I have never had any success at
re-sharpening because they have an induction-hardened edge and once that
is gone, the blade is dead.
These are a lot cheaper than the "trade" type which have gear-like
cutters. I reckon they are fine for domestic use but if I was in the
trade I would not touch them because you could get through several sets
of blades in a day. (The price would not be the issue, rather the time
wasted changing them).
I have a similar older Bosch shredder (paid £20 for it on local Facebook
page) which copes with even very hard wood of 40mm and more.
I believe the screw type mechanism in these is the best for 40mm branches.
I haven't seen the inside of a garden shredder, but I have a paper
shredder which uses the following (but much smaller) type mechanism
that's used in this video (and a million other YT shredder vids).
Big Shredding Machines !!!
If common garden shredders don't use the above, why don't they? Seems
pretty effective at breaking things, and could be made enclosed for safety.
I've had a Screwfix Titan brand quiet shredder for a couple of years. It
uses a slowly rotating sharpened cog type of blade to cut the branch
against a stationary surface. In my experience, it's a very good
machine, very rarely jamming (which is usually my fault for not emptying
the box often enough, or trying to push too much stuff through). Even
when it has jammed, it is very easy to put the machine into reverse to
clear the jam. In that respect, it is many times better than the
fast-rotating lawnmower-type blade shredder I had before the Titan,
which jammed every couple of minutes, and required a dismantling of the
shredder to clear the jam.
The Titan will handle 40mm branches, but it isn't made any more. The
current McAllister equivalent gets poorer reviews, and although
apparently slightly more powerful, is at least 5kg lighter - so I'm not
sure where the weight has gone. Maybe it has a less reliable motor?
Anything woody larger than 40 mm I saw into 20 - 25 mm lengths, and dry
for burning on the wood-burning stove.
On Sun, 11 Aug 2019 11:19:11 +0100, Michael Chare wrote:
I've got one, but don't use it much. Be aware that the maximum diameter
is of a round straight branch with no side branches. Most plants aren't
like that, so you'll spend a lot of time chopping up branches so they
will go in. Thinner branches can go through a slot, so some side twigs
will go in, but it still won't take anything with substantial side
branches. Mine also won't do much with leafy material - anything not
woody comes through slightly crushed but not shredded.
In the end it seemed much easier to put the small stuff on the compost
heap unshredded, and the big stuff on a bonfire.
IME the first question to answer is what kind of stuff you need to
shred... many garden shredders are aimed mulching down clippings and
small branches, and are a slightly different style of machine from a
chipper which is aimed mostly at reducing the volume of tree waste.
Initially I had one of the old Bosch "quiet" helix style ones. Which was
ok on woody / dry stuff, but clogged easily on leafy green stuff. The
cog based ones are somewhat better I am told. The "noisy" ones are
usually better on leafy green stuff, but slower on branches. Beware some
expect the branches to be fed into a different chute, where they are
then chipped away somewhat more slowly. That also tends to mean they
need to be straight ish, and free of side branches - so lots of prep work.
For my current requirements (lots of tree pruning and little else), I
found the lekky ones fairly poor in general, and too much like hard work
all round. So I went for a semi-pro 9hp chipper with a 270cc motor
spinning a large drum with a couple of substantial resharpenable blades
on it. That claims to do 80mm branches. In reality it can actually do a
bit more if you let it take bits at the branch - i.e. let it shred a
bit, then pull the branch back before the drum looses too much momentum,
give it a mo to spin up again, and repeat.
I suppose it would be mostly bush trimmings. At the moment we chop the
stuff into maybe 6" lengths to go in a plastic tub. We then take several
tubs to the tip a few times a year. I was wondering if a shredder would
chop the stuff up into smaller piece so we could get more into the tubs,
or have a proper compost heap. The council takes 1 wheelie bin every
two weeks which is usually full of grass.
The Bosch shredders do much the same, about 1-2cm. Yes, shredding will
allow the OP to get much more into his tub, but then there's the risk
of the tub being too heavy to lift! Shredding also speeds composting,
but it still takes many months to break down woody shreddings. Adding
nitrogenous fertiliser helps. Some people use their own pee. I used to
put woody shreddings straight onto the garden as a mulch. I never
shred soft green weedy stuff. I don't see the point. It went straight
onto the compost heap, but as I haven't yet made room for one here,
into the garden waste recycle bin.
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