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Coaxial cable is used in a variety of
products serving many different markets. It is used to carry
higher frequency signals from point A to point B with minimal
signal loss and degradation. Cables and interconnect systems
are getting smaller, and overall volume is increasing. The most
common applications include antenna cabling, cable TV equipment
interconnects and automotive applications. In automobiles, for
example, more and more systems (satellite radio, AM/FM radio,
GPS, cell phones, etc.) are being packed into extremely tight
spaces. This increased density of signal carrying cables makes
coaxial cable an obvious choice to reduce or eliminate signal
interference.
Higher volume jobs for standard
applications are usually produced offshore, and smaller jobs are
produced locally using varying levels of automation. OEM’s
tend to outsource coaxial cable assemblies since they are
considered a commodity and not part of their core business.
Increasingly, cable and connector manufacturers are producing
and providing finished cable assemblies to the OEM’s. Since
they manufacture the cable and connectors, these manufacturers
have a cost advantage over subcontractors who must purchase the
components on the outside.
Cable preparation
The first step in producing a coaxial cable
assembly is to measure and cut the cable to length. Many cables
are in the 3 to 12 feet length range and can be produced using
an automatic cutting machine and then laid into an automatic
stacker. Longer lengths must be coiled and tied for easy
handling. A semi-automatic cutting machine (with an optional
coiler) can make quick work of this step. The next step is to
strip the cable ends to prepare them for termination. This step
is best done using a semi-automatic programmable coaxial cable
stripper (see photo above). These types of strippers can store
parameters for a wide range of cable types and can typically
perform a 2 or 3 level strip in approximately 6 seconds. An
operator must feed each cable end into the machine and wait
until the stripping operation is completed. Fully automatic
cable preparation machines are available which eliminate the
need for an operator to present each cable end. These machines
can measure, cut and strip cables with a cycle time of
approximately10 seconds, depending on cable length...
...Continued
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