Unfortunately, there is no recognized standard that everyone can
agree on. That means that you, as a buyer, will need to understand and
properly compare specifications, keeping in mind the differing
standards of measurement and how the specs interact with one another.
You’ll
need to determine your own way to compare accuracy, motion, non-cutting
time, and horsepower and torque specifications. Keep in mind that the
best “number” in one category does not mean it is the fastest machine,
and may not be the best machine for your application.
We
talked about examples of machines that can look inferior on paper to
other machines, but in reality are the faster and more accurate
machines due to varying standards or different technologies.
There are many things which you must consider, and most will not compare to one another easily on a spreadsheet.
When
is a spec not really a spec? When there’s no standard for measurement,
making comparison impossible; when specs don’t reflect the application
and real-world use of a machine; and when there’s no basis for
comparison of values when key components of normal operation are not
considered.
An Alternative
Because you
can’t choose a machine that is ideal for your application solely based
on a spec comparison on a spreadsheet, the best way to actually see how
a machine will perform is to compare cycle times, value, and cost of
ownership.
Look
at like parts, talk to the manufacturer about your part features and
concerns, and try a few test parts in each manufacturer’s machine to
see how all the specs add up for your application and need.
If
you evaluate a machine based on your application and how the machine’s
value will reflect your use, this will guide you to choosing the right
machine for your application.