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.
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.
Also a page on larger Nazels.
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
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
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