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Posted by Andrew Mawson on April 13, 2007, 5:31 am
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>
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> > Hi,
> >
> > Has anyone in the group personal experiance of the Anyang Power
> > Hammers, and if so which model and comments would be appreciated.
> >
> > Anyone in the UK got one set up and seeable?
> >
> > AWEM
> >
> >
>
>
> Andrew,
>
> I have only the smallest experience with Anyang. It is this. A
few
> years back a friend of a friend got one and was disapointed with the
valving
> of the hammer. It was not adjusted properly from the factory and
was
> hitting too light. Apparently the response from the seller was slow
and
> there was much frustration. This was many years ago and I have
heard more
> recently that an Anyang at a shop in California had a similar
problem but
> was adjusted and made OK. I think this is a link to the actual
hammer,
> along with the hitting weirdness.
>
> http://www.youtube.com/watch?v=848ivpc0_HI
>
> For the record, my personal experience with Chinese made heavy
tooling
> is good. I have heard much of terrible castings, non machined parts
and
> poor costruction. Most of this is old news. The newer items coming
out of
> China (industrial products I mean) are pretty damn good, especially
for the
> price. I recently bought a lathe that has performed well.
> The basic design of the Anyang is taken from the Nazel power
hammers
> made 50 years ago in Philadelphia. These hammers were VERY good
hammers. I
> have logged many hours on the Nazel 2B. This is a 6000lb hammer
with a 180
> lb ram. The dynamics of the hammer just simply makes sense. A
super heavy
> flywheel is brought up to about 300 RPM. The 2B's weighed about
350lb.
> This maintains a huge amount of rotational energy. That energy is
driving a
> piston that has no pressure in the top of the piston. When you
apply
> pressure to the foot pedal, the valves begin to close the escaping
air off
> which makes all that rotational energy transfer to the ram. When
you push
> full down on the pedal all of that energy is transferred so
efficiently it
> boggles the mind. I remember often just sitting and watching the
hammer in
> use and marveling at the design. Not only that, the hammer was
designed to
> give a one shot, pause then full 120 per minute hitting speed. This
was for
> set hits. Really an amazing feat of engineering for a smiths shop.
> Here is a link to a Nazel being run.
> http://www.youtube.com/watch?v=uc4ZRul7f34
>
> Also a page on larger Nazels. www.nazel.com/
>
> Sorry I got a bit off subject. The Anyangs are not what Nazel
was, of
> this there is no doubt, but the design is based on the same energy
transfer
> method. I think if the company's in China are improving their
valving and
> casting quality, I would recommend this hammer. Just son't buy an
old one.
>
> I am currently running a Sahindler and two little giants. If
you are
> forging tapers and scrolls, there is nothing like a mechanical
hammer. If
> you are working more top tools and sculpture work then an air hammer
is
> better. I think that your Anyang is more energy efficient than a
Kuhn or
> Sahindler. The flywheel on those two is small and is only a gearing
device
> not an energy storage measure. Also the valving is such that it
sounds like
> the motor is pushing air under load when you are not using the
hammer. What
> this means to your electric bill you can figure out yourself.
>
>
> OK, I think I have written far too much and given you way too
much
> opinion. Sorry. I am just trying to be helpful. If you have any
questions
> feel free.
>
>
> Andrew Molinaro
>
> www.artisansoftheanvil.com
>
>
>
Andrew,
That was a very useful set of links and comments - many thanks.
I have been offered a 60 lb Goliath here in the UK for £1500 (plus
carriage of maybe £200) which frankly needs quite a bit of work to set
it to rights although it is basically working. I got to thinking it
was logical to start comparing these Chinese hammers price wise. Here
a roughly equivelent Anyang (the C41-25) runs to about £3,500 and the
rather bigger C41-40 is quoted at £4077, both prices including taxes
and delivery. It's a lot of money for what is only a hobby, but I have
to decide if I want to spend my days mending machines or making
things!
As I understand it, a single blow on the Anyang is not so easy to
achieve, but you can do a 'hold down' for twists etc - can anyone
confirm this?
AWEM
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