Temperature
Choosing the correct vacuum cup for the temperature of the part can be crucial
to the longivity of a vacuum cup. Silicone is an excellent low cost choice,
but it can sometimes mark parts. Viton and Hithane are long lasting, temperature
resistant and they do not mark. Polyurethane is best saved for medium temperature
applications.
When
considering temperature, remember that the maximum temperatures listed
in the Vacuum Cup Properties charts refer to sustained temperatures.
Because most applications
do not require
cups to hold a hot part for long periods of time, the maximum temperature
that a cup can be used for can usually be more than
that stated in the chart; i.e.
a cup that is listed with a maximum temperature of 200º can often
be used to grip a part of more than 200º as long as it is for a short
period of time.
Viton® provides
high temperature performance in a non-silicone, non-marking
vacuum cup. These green cups are more flexible than other Viton® cups
allowing them to be used on parts with slight texture or contoured
surfaces.
 HNBR
is a silicone-free, hybrid material well suited for vacuum
cups used to hold hot, plastic, injection molded parts without
leaving a residue or ghost marks.
|
Static
electricity can sometimes be a problem in molding applications
causing parts to stick to the EOAT. This small, lightweight static
eliminator mounts on the EOAT.
It effectively treats and eliminates static and related problems
at the source. Low voltage 24V DC operation makes it safer for
use on end-of-arm-tooling than typical high voltage units. It
is 92 x 34 x 30mm in size and weighs only 160g. For large
parts, you can use multiple units.