AFD70 Series
Passive Compliance Force Device
| The PushCorp Passive AFD70
Series force device is a simple, low-cost compliant unit for many applications.
Using a low friction cylinder and linear rail technology this device delivers up to 50 lb.
(222 N) of force. The unit is equipped standard with an internal position sensor to
monitor the location of the carriage. Fitted with a manual or electrically
controlled pneumatic regulator, the AFD70 Series can make quick work of
many force based applications. The 70 Series can be equiped as either an AFD71 single acting with only positive force application, or an AFD72 double acting with positive and negative force capability. The unit may also be ordered in three different standard mounting configurations. |
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| AFD70-3 Table Top |
For additional information download the AFD70 Manual (.pdf)
FEATURES
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SPECIFICATIONS:
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Standard Mounting Configurations
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AFD70-1 Vertical |
AFD70-2 Horizontal |
AFD70-3 Table Top |
| The
PushCorp, Passive AFD70 Series Compliant Force Device was designed
as an inexpensive alternative to the active AFD1000 Series. In some
applications the AFD70 can provide comparible performance to the AFD1000 at a lower
cost. The simplicity of the AFD70 Series does, however, require more
integration effort from the end user. Since the AFD70 Series does
not employ a seperate controller, the unit must rely on innovative features. The AFD70
Series uses glass cylinders with graphite pistons, and linear ball bearings to
greatly reduce operating friction. This allows the unit to be reliably used at lower
force levels. It has the same physical dimensions as the AFD1000 Series,
and the same bolt patterns. This means that all of the AFD1000 mounting options are
available and that most of the PushCorp process equipment will bolt right up. The AFD70 Series requires the user to supply regulated pressure to control the force output. An AFD71 requires one regulator and the AFD72 needs two. The force output resoulution is highly dependant on the regulator accuracy. The regulator can be manual or electrically |
controlled based
on the application. If a constant force is required and the orientation does not
change, a manual regulator is sufficient. If the force and/or orientation changes
during the process, then an electrically controlled regulator is necessary to provide
gravity compensation. This means that the process equipment weight must be
compensated for, which requires calculation and adjustment of the regulator pressure at
all times during the process. The AFD70 Series has a linear potentiomenter installed inside the unit to monitor the carriage position. A connector on the outside of the unit is connected to a high-flex cable. The cable must be connected to a power supply and an analog input device. The position of the carriage can be monitored continuously during the AFD's operation. If the end-user has the skills to setup the gravity compensation and linear potentiometer, the AFD70 Series may be the ideal solution. On the other hand, if easier setup and higher performance is desired, the active AFD1000 Series would be a better choice. |
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*New*
Extended Stroke AFD70L: The AFD70 Series may now be ordered with an extended 40mm stroke. This allows a greater range of compliance, without having to step up to an AFD80 Series. Currently the AFD70L may be ordered as an AFD71L-2, single acting, horizontal mounting, or an AFD72L-2, double acting, horizontal mounting. SPECIFICATIONS:
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PUSHCORP, INC. P.O. Box 181915 • Dallas • Texas • 75218 • (972) 840-0208 • FAX (972) 840-1046
