The components for our copper
brass heater cores are all manufactured in house. The distribution and
return tanks are stamped and formed from a brass strip by progressive
dies. The holes for the nozzles are then punched in the appropriate configuration.
The nozzles are cut, end formed, and bent into the correct shape from
raw brass tube stock. The water channels and air fins are manufactured
using an automated process. The channel is stamped and formed from a brass
ribbon and the air fin is roll formed from a copper ribbon. The two are
then inserted together automatically and deposited into a chute for core
assembly. The fin and channel are marked with the distribution and return
tanks using universal framing fixtures. Both faces of the core bodies
and all corners are then run through an automated flux and solder dipping
process.
Once the core body soldering is complete, the nozzles are brazed into
place using unit specific locating fixtures. The Configuration of the
heater core is now complete and only finishing operations remain. The
heater cores are sent through a Slurry Blast Process, which utilizes small
glass beads and a water mixture to clean and shine the end tanks of the
core. The cores are checked for leaks using air and water pressure test.
Once the heater core passes leak test, they are dried and packed out in
individual cardboard boxes with air pillow inserts.
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