Insulated Runner Molding
Adept Custom Molders (ACM) provides plastic injection molding using
insulated runner molds, an excellent option when a large number of
plastic parts need to be manufactured quickly.
Learn more: Choosing
the Correct Molding System
Insulated Runner Molding: Advantages Over Hot Runner Systems
Properly designed insulated runners, with thermally controlled gates, offer several
advantages over hot runner mold systems, including:
- Dependable reproduction – no "dead spots" in mold
- Uniform temperature distribution – thermal insulation forms through
melt deposited at the wall
- Economical process for continuous operation of uniform cycles
without extended interruptions
- Easy to maintain – quick to clean
- Fast production color changes
- Molds are less expensive to build and to maintain than hot
runners
- Minimal heat loss – thermal equilibrium reached quickly
- Low energy
input on startup – reduces energy cost
- More consistent volume of polymer per part
- Faster molding cycles
- Elimination of runner scrap — less regrind
- Improved part finish
- Decreased tool wear
Insulated runner systems are inexpensive alternatives to traditional hot runners, where
the
mold is not heated, but the runner channels are extremely thick and stay molten
during continuous cycling.
This feature provides the flexible gating advantages
of hot runners without the
added cost of the manifold and drops of a heated hot runner system.
Insulated Runner Molding: Cold Runner Molding Has Advantages
However, as with hot runners, the insulated runner system also has
disadvantages when compared to cold runner molding in certain situations. The increased level of technology required to manufacture and operate the
insulated mold results in:
- More complicated mold design
- Higher mold costs
- More difficult start-up procedures
- Possible thermal degradation of the polymer melt
- More difficult color changes than with cold runners
Learn more: Choosing
the Correct Molding System
For a quote or more information about how we can help your project, call 765-457-8225, or send us an email, or submit this short form:
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