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Rotary Hydraulic Cylinders

Ptm Mechatronics Gmbh

  • Rotary actuator / hydraulic / pneumatic
  • Rotary actuator / hydraulic / pneumatic
  • Rotary actuator / hydraulic / pneumatic
  • Rotary actuator / hydraulic / pneumatic

Article: 00121267

Rotary actuator / hydraulic / pneumatic

The accelerated mass represents a major
problem in pneumatics. The actuator may
selfdestruct because of the kinetic energy.
Some clients had this unpleasant experience
already. Throttle valves can be used to control
the rotating speed. For damping of the
accelerated mass before reaching the end
positions it is possible to install hydraulic
shockabsorbers. This will improve the situation,
but the result is not totaly satisfactory.
We developped the Hydraulic-Pneumatic Rotary
Actuator -HPA to solve this problem. We split
the task into two steps: The cheap, clean and
compressible medium air will continue to do
the work for the actuation. But to control the
moving mass the non compressible medium
oil is used in a closed hydraulic system. This
allowes to adjust the rotation speed exactly.
A restart after an E-stop is possible without
any problems. There are two independent and
adjustable rotation speeds possible. This
guarantees a precise and constant adjustment
of the end position damping

Specifications

  • Movement: rotary
  • Type: hydraulic, pneumatic
  • Torque: 7.5 Nm (5.53 ft.lb)

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