Hydraulic Actuator

Use the Hydraulic Cylinder and Hydraulic Valve commands to apply a hydraulic actuator to a Basic Joint with sliding or cylindrical joint properties. The Hydraulic Cylinder defines the piston and chamber parameters of the hydraulic actuator, and the Hydraulic Valve defines the force applied to the joint that is dependent on the pressure characteristics of an incompressible liquid. You can control the force from one direction of the piston, or from both directions.

To apply the force to:

• The joint attachment, use a positive force.
• The joint base, use a negative force.

You can apply a three-position valve, or a four-position valve to either a single-rod hydraulic cylinder or a double-rod hydraulic cylinder. Use the three-position valve when you only want to apply hydraulic force in one direction. Use the four-position valve to apply hydraulic force in either direction.

You can control the flow rate of the hydraulic fluid by using operations and signals to adjust the valve's input pressure and flow rate. A single valve can control the flow rate to multiple cylinders.

Where do I find it?

Application	Mechatronics Concept Designer
Command	Hydraulic Cylinder, Hydraulic Valve

How do I

• Create a hydraulic actuator
• Control a hydraulic actuator

Learn more

Related actuator topics in this section:

• Adding abstract actuators
• Position Control
• Speed Control
• Pneumatic Actuator
• Inverse Kinematics

Look up more details

• Hydraulic Cylinder dialog box
• Hydraulic Valve dialog box

Quick links

• Introduction to Mechatronics Concept Designer
• Mechatronics Concept Designer Preferences
• Browse NX help by product area

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Hydraulic Actuator, NX 2212 Series — © Siemens