Indoor rotators come in many different
sizes based mostly on the weight of the sign or display to be rotated.
Larger rotators usually have more powerful drive systems since more weight
requires more turning torque. If your display will be evenly balanced
and will rest on the hub plate of the rotator you can match the rotator
that is rated for the sign weight. For example, if you have a display
weighing 250 lbs that is evenly balanced we would recommend our T100-5C
compact rotator rated for 300 lbs. If you have the same display that will
be mounted vertically on a wall, we would recommend a larger T100-5X compact
rotator with a more powerful drive system.
If you have a tall display or an eccentric or unbalanced display,
you should consider using a rotator that is rated above the weight of
your display. Also keep in mind that an unbalanced load will put more
stress on the bearings resulting in a shorter overall bearing life. Using
a rotator with a higher load rating may prolong the life of the bearings.
Collector and brushes: the number of circuits you require will determine
how many collector rings you will need. "F" Model rotators and
compact rotators mounted upside down require an additional circuit to
power the rotator. With this type of application, your electric wires
must pass through the collector to the brushes. The motor is powered by
the brushes; the rotator frame turns with the display or sign. Consult
an electrician if you are unsure of the power requirements of your lighting
system. Our rotators come equipped with 115V motors, and turn in the clockwise
direction at 2 to 3 rpm. As an option, motor voltage, rotation direction,
and speed can be changed on most models. We also have variable speed motors
for most of our revolving units.
Mounting: Most of the time the rotator is located out of the site of the
viewer. The rotator can be positioned under the display in a cabinet,
inside the display, or above. Our rotators have drilling in the hub plate,
base plate, and the side of the frames and on our compact models we include
tapped holes on the sides of the rotator frames. Your sign or display
should be engineered to support the total weight of the display as well
as side loading, electrical requirements and public safety. If you want
to hang the rotator and display, please let us know when you order so
we can add safety features for this type of application. Our accessory
companion matching plates make it easy to mount your display to the hub
of the rotator, simply weld the plate to the post that supports the display,
then bolt the companion plate to the rotator hub.
Outdoor Rotators: Your sign becomes a sail when the wind
hits it. Even a relatively light weight sign can generate an enormous
amount of side force or bending moment when hit by wind. Depending on
the wind conditions of the area the sign will be installed, the same sign
could require different size rotators. A rotator mounted high inside the
sign will see less force than a rotator mounted below the sign and can
therefore be smaller, however, this type of installation is not always
feasible. We offer accessories such as split plates and stub bearings
to support the sign opposite the rotator. You should always consult an
engineer when considering outdoor sign installations. Please see the installation
links below to determine the recommended rotator for your project. If
the sign will be used in a high wind area, please call for free consultation
on rotation selection.
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