|
Runton Engineering, Inc.
makes a wide range of molded coils, everything from
.25" in diameter to over 4". Each customer's
requirement is usually different so we design the
part and the molds to order.
The moulding material is a
glass filled polyester resin which thermosets when
heated to 350 deg. F. It is manufactured by IDI
Caribe under their number 44-DR-3A and it is fungus
resistant per MIL-STD-454N.
The material is designed to
be used for low and medium production quantities as
a protection for electrical devices such as coils
against harsh environments experienced in industrial
use. It is applied by hand to the coil and then
placed in a heated mold which gives it the proper
shape. Usually little additional labor is required
to finish the part.
The process does not compete in
cost with injection molded parts but if low volume
and low tooling costs are a measure, this process is
the way to go.
Depending on the outer shape
of the part, tooling is quite inexpensive, usually
running less than $1,000. Tooling is usually
delivered within 2 weeks and the molded coils a week
later. Of course, this all depends on the part
shape, etc.
Very truly yours,
Peter L. Runton
President
|
