Sensor technology and valves for servo hydraulic actuators Perfect for dynamic industry and test tasks
For the necessary sensitivity, Hänchen offers convenient sensor technology components and valves – all for highly dynamic, precise drives with high energy density.
Force transducers use strain-gauge or piezo-technology and measure the retracting and extending forces of the servo hydraulic actuator. They are installed directly on the piston rod and measure the load on the piston rod statically or dynamically. Force transducers are used e.g. for monitoring or controlling the cylinder force.
Control valves regulate the flow rate in proportion to the electrical select signal. Depending on the application case, valves with hydraulic pilot control or directly proportional solenoid-controlled valves are used. Valves with zero overlap of the control edges are especially suitable for hydraulic control tasks.
Pressure-resistant inductive proximity switches detect the end positions of the stroke in the hydraulic servo actuator - wear-free and without contact. The signal is used to check or control the hydraulic cylinder. Servo hydraulic actuators with proximity switches also feature adjustable cushioning.
Position transducers show the position of the piston rod electronically. An analogue or digital travel signal can be generated using the stroke. This can be used e.g. as an actual-signal in the position control circuit, or for monitoring position or speed limits. A position transducer can be integrated in the actuator, making a compact, mechanically protected servo hydraulic actuator system.
Technical data for Hänchen hydraulic servo actuators
Type of effect: single-rod cylinder, double-rod cylinder* | Sealing systems: basic design, Servocop®, Servofloat®* | Speeds: up to 2 m/s for series 120, 300 / up to 0,5 m/s for serie 160 | Stroke: 1 - 1,500 mm