LARGE HARD COAT
AND SHOW ANODIZING
LINE FOR ANODIZED TYPE II AND TYPE III MIL-A-8625 CLASS 2
CALL US AT
631-236-9691 or 410-633-2028
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This is a large show and
hard coat anodizing line. This line was constructed
with mostly brand new equipment. This is a very nice hoist
line that will can anodize parts as long as 10 feet in
length and over 7 feet in depth. These tanks are also
very tall and require a cat walk for the anodize personnel
to operate it. The containment volume of the this line range
from 1,400 gallons to 1,900 gallons per tank, depending on
the tank. The two anodize and sealer containment tanks
would be the largest because of the extra retention times
involve in those processes. The line has air and water
piped to many of the processes.
This tank is going to
Vibrant Blue dye tank for dyeing a nice bright blue color on their
anodized parts. This tank uses steam driven 316
stainless steel heat exchangers for heating the dye.
The controls for the heater is located at the opposite end
of the tank from the operator. All air and water
plumbing are also located in the same area. The dye
process happens after the anodizing process. Once a
part has been anodized, it forms a surface on the aluminum
that is very hard, yet very porous. This porosity
allows the aluminum to be able to soak up dye.
Decorative anodizing will create the largest holes on the
surface of the aluminum, therefore it will also take the
dyeing process best. Hard anodized parts can be dyed
but not as well. SR anodized parts will take a very
nice translucent dye, but will still not look like
decorative or Type II anodized parts.
This third picture
shows a side view of an anodizing sealing tank in this line.
The sealant is used for both hard coat anodizing as well as
for decorative anodize process. It seals at a
temperature of 180F which makes it much safer to use than
conventional hot seals that can run as high as 220F.
This tank has two titanium heat exchangers that are ran by
steam heating. There is one on each side of the tank
for best dispersement of the heat from the steam boiler.
Located at the rear of the tank is a thermostat sensor that
opens and closes the heater solenoid as needed to maintain
the tank temperature. This is the best way and most
efficient way to heat large plating or anodizing tanks.
There is also a schedule 80 CPVC air spargar that runs to
the bottom of the tank to provide air agitation to the
Here are some titanium racks
for holding the aluminum parts for the show or hard coat
anodizing process to follow. Racks like this are used
commercially because you can anodize 20, 30, or maybe a 100
parts at a time. The more parts each turn, the more
money you make on the line. We sell many racks used and we
can get you new racks for any shape and size parts.
This is the top view
of the hard coat tank. You are looking at the ultra
pure titanium cooling coils on the bottom of the tank.
The cool coil get a supply of very cold water from a chiller
unit to chill the anodizing bath and keep it at the optimal
cool temperature for a hard coat finish. The ultra
pure aluminum cathodes are located to the front and the back
of the chiller coil. There is a filter pump located to
the right of the picture
This is just a side view of the hard coat anodizing
Notice the cathode bars that runs down the left and right of the tank.
These cathodes are made of very conductive 1100 series ultra
pure aluminum for most efficient anodizing voltage and
amperage. The cathodes are hanging from bronze bus bars.
Right in front of the photo is a filtration system for
filtering solution as well as agitation of solution.
There is also a PVC air pipe running to the bottom of the
tank for extra solution movement in this very large tank.
The tank over to the right is the decorative Type II
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