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Cast Iron Weight, Counter Weights
Cast iron weight is also called as iron
counter weight or cast iron
counterweight. There are many types of
cast iron weights, such as
cast iron weight ball, cast iron
weight plate, hold down weight and tie
down weight etc. Cast iron weights are
used for fitness equipments, building
and farming machinery such as tractors,
forklifts, engineering trucks and
cranes.
My reader wish I could write more for
the crane weight balls. I also hope to
write more for this type of products,
however, the cast iron weights are easy
to make for most of iron foundries, so I
really do not know what I can write more
for these products. If you want know
more about them, please feel free to
write to me. I will try my best to tell
you as much as I know.
By the way, all our articles are
published on our official blog -
Dandong Foundry
Blog in the first time, so, you
could check our official blog for the
latest articles.
Now, let me say more about cast iron
weight.
The material degree for counter weights
is very low. Mainly gray iron
ASTM A48
Class 20, 25 or 30, by Germany standard
also called as GG15 and GG20. All the
iron foundries in China can make these
two degrees. However, you can not ignore
the material requirements. In order to
reduce the price to very low, some iron
foundries use high percent of iron scrap
to make the iron counterweights, so
their material degree is even lower than
Class 15. Therefore, their tensile
strength is very low, and it will cause
the potential danger in application.
As for the casting processes, the buyers
should be aware of it. The cheapest
casting process is
green
sand floor molding process. Many
foundries may think this process is very
suitable for iron counterweights since
counterweights usually have low
dimensional requirements. However, green
sand floor molding can not make good
cast label and letters. If you have high
requirements to surface quality, you
should consider to choose other casting
process. For large counterweights, you
should use the
resin sand casting process,
which could keep good dimensions and
surface quality. It is seldom to make
counterweights by
shell
molding process because shell
molding is too costly. However, if your
counter weights are under 20kg, and have
very high surface quality, the shell
molding is also a very good choice. Of
course, if you have very large annual
demand, then you have to consider the
automatic molding line, which
has similar prices with floor molding,
but has very high production rate and
good dimensions and surface quality, but
it can not make too large counterweight
because of their sand box limitation.
As for counter weights, some level of
welding should be permitted. Both of
suppliers and buyers should assure the
unit weights. Accurate weights are fair
for both partners. You could confirm the
average unit weights by samples or by
first batch of order.
As for the coating,
Dandong Foundry usually
painted the anti-rust painting for cast
iron counter weights, and clients will
paint the finish painting by the
specific paint before their assembly.
As for a buyer for cast iron weights,
you should pay attention to selection to
casting process, accurate unit weights,
surface quality and material degree.
Cast Iron Weight
Cast Iron Counter Weights
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