Rotary actuator E3
Advantages
at a glance
-
ultra compact
-
robust construction
-
high bearing charge
-
double shaft-and piston-sealing (lip seal)
- exact, almost free from backlash positioning
- wear resistant
- continuous shaft hole
The expert
for the mobile application
The E3 is a hydraulic rotary actuator that has been especially designed for mobile applications. This rotary actuator functions according to the "helical gear" principle and, due to its compact design, only requires a minimum amount of space.
As far as the dimensions are concerned, the Eckart E3 is identical in form to the products of its competitors. The Eckart E3 rotary actuator has unique selling points, however, which can offer decisive advantages during its application: firstly, the deflection threads are paired with virtually no play; secondly, the roller bearing is fitted so that there is no play; and thirdly, no compact seals which can be subjected to stress on both sides are used. Consequently, there is no more "wobbling", such as of the work platform, when a lateral movement is made.
Specifications
| Size (piston-Ø) | 5 sizes |
|---|---|
| max. torque at 210 bar | 50 to 3600 Nm (442.5 bis 31,851.6 in-lb) |
| spec. angle of rotation | 0,72 – 340,0 Nm/bar (0.0497 – 23.54 in-lb/psi) |
| Angle of rotation | Standard 180°/360° and any intermediate angle |
| Medium | Hydraulic fluids DIN 51524, ISO 11158 HFC, HFD; others on request |
| min. operating pressure required | 5 to 10 bar (72.5 to 145 psi) |
| max. allowable operating pressure | 210 bar (3045.78 psi) higher on request |
| Installation position | as required |
| Temperature range | -25°C to +70°C (-13°F to +158°F) higher or lower on request |
Option
valve block
- oading hold function, in case there is a tendency for the work platform to rapidly move away if positioned on an incline
- clamp function, so that the work platform cannot wobble from side to side regardless of its stop position
- overpressure function, which prevents the rotary actuator being irreparably damaged due to excess pressure, stemming either from the hydraulic system or from an increase in temperature
Use of work
platform
Bearings for the full accommodation of the load and the rotary mechanism are integrated in the rotary actuator. Consequently, the work platform must not to be separately fitted with bearings. Furthermore, the rotary actuator has a hole through which the hoses or cables can be passed. For safety reasons, it is also possible for a screw to be fitted at this hole. With this screw, extra tightening at the fastening straps of the extension arm or the work platform can be provided. Even if the rotary actuator is damaged, e.g. in the axial direction, the work platform will remain fixed in place.
Typische Anwendungen
- Linear actuation
- Bending machines
- Gate valve control
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