The traditional model for production has
been to get maximum productivity from capital equipment, and to run capacity as
close to maximum as possible. The rubber
and plastics industry is no exception to this traditional norm, but that norm
is changing in favor of a more adaptable model that is more closely aligned
with today’s market. Companies have
adopted such a model, running capacity no higher than 70% before bringing in
new capital equipment, and reducing the average amortization cost for tools
more than 50% over the last 10 years.
The sales cycle of industrial products has
shortened significantly over the last decade, and in some cases has been
reduced by more than ½. This is driven
largely by international competition, and a generally more innovative market
which is empowered by the blistering pace of technology. Industrial products from valve systems to
pumps are being reengineered and updated to meet international demands, and
products are being “sub categorized” into smaller, more succinct market
segments in order to compete globally, when it comes to seal devices. The days of American OEM’s offering simple
chocolate and vanilla flavored products are long gone – sub markets to satisfy
specifically targeted cultures and consumer groups are the driving force for
American industry today, and the engineering required to meet these specific
needs is more detailed and complex than ever.
Companies have adopted a production model
to follow this trend. Companies utilize a modular tooling system for injection
molding, where most tools are fabricated with inserts which are retrofitted
into existing mold bases, which are optimized for the size and tonnage of the
machine they are mounted in. These
inserts are also standardized, which allows for a more economical baseline for
tooling costs. The amount of time and
effort required to change out inserts is also a fraction of the time necessary
to change out a dedicated mold, saving time and labor. Although the price per individual part is
normally slightly higher than the dedicated molds due to cycle time, the
dedicated molds are so much more expensive that the difference in price isn’t
enough to recoup the initial tooling through the life of the project. Our experience has been that product geometry
changes through the life of the project, so the low amortization tooling cost
allows for greater flexibility through the life of the project, keeps overall
costs to a minimum, and allows for quick and adaptable changes in production
scheduling.
The traditional approach to tooling
normally means more complex setup time for cycle optimization. This is worth the time and expense if the
production run is to be for an extended period (many days into weeks), but in
today’s market, these kind of production runs are becoming more the exception
than the rule. Manufacturers who can
adapt to the more fragmented and dynamic demands of the market have a distinct
advantage, even with a higher part cost.
O Rings keep capacity constraints buffered,
amortization costs low, and response/adaptability to customer demand at its
maximum level in order to compete in today’s dynamic market.
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