Häko Product configurator HÄKO Logo print
This is what characterises our servo hydraulic actuator :
  • Optimal price-performance ratio
  • Suitable for testing tasks with long strokes
  • As single-rod or double-rod cylinder
  • With integrated position transducer
  • Low dead weight
  • Optionally with mounting plate for control valve

Sensor technology and valves for servo hydraulic actuators
Perfect for dynamic industrial and testing tasks

For the necessary sensitivity, Hänchen offers suitable sensor technology components and valves – everything for highly dynamic, precise drives with high energy density.

To operate the drive in an Industry 4.0 environment, sensors can also provide data for condition monitoring:

  • Pressure transducer in the chambers analyse the friction behavior
  • Temperature and color sensors provide information on the condition of the fluid
  • Online particle counters indicate the degree of contamination of the system
  • Flow sensors on the functional oil channel provide an indication for a seal replacement.
Force transducer

Force transducers use strain gauge or piezo technology and measure the tensile and compressive forces of the hydraulic cylinder. They are mounted directly to the piston rod and thus measure the load on the piston rod statically or dynamically. Force transducers are used, for example, to monitor or control the cylinder force.

Force transducer work on strain gauge or piezo technology and measure the tensile and compressive forces of the hydraulic cylinder
Valves

Control valves regulate the flow rate in proportion to the electrical control signal. Depending on the application, valves with hydraulic pilot control or valves directly controlled by a proportional solenoid are used. Valves with zero overlap of the valve control edges are particularly suitable for hydraulic control tasks.

Continuous valves for Hänchen servo hydraulic actuator
Proximity switch

Pressure-resistant inductive proximity switch detect the end positions of the stroke in the hydraulic cylinder without contact or wear. The signal is used to control or monitor the hydraulic cylinder. Hydraulic cylinder with proximity switches also have adjustable cushioning.

Pressure-resistant inductive proximity switch detect the end positions of the stroke in the hydraulic cylinder without contact or wear
Position transducers

Position transducers electronically indicate the position of the piston rod. An analogue or digital position signal can be generated via the stroke. This can be used, for example, as an actual value signal in the position control circuit or for monitoring limit values of position or speed. The position transducer can be integrated directly into the cylinder, creating a mechanically protected system in a compact design.

Hydraulic cylinder with position transducers

Series of servo hydraulic actuators from Hänchen
For controlled movements

Servo hydraulic actuator series 120
  • bore 40 mm to 180 mm
  • working pressure up to 150 bar
  • as single-rod cylinder and double-rod cylinder
  • cylinder in round-head design
  • various mounting types
  • honed and chrome-plated piston rod
  • test pressure = 1.5 x max. working pressure
Servo hydraulic actuator series 160
  • bore 50 mm to 125 mm
  • working pressure up to 160 bar
  • as single-rod cylinder
  • cylinder in round-head design according to ISO 6020-1
  • various mounting types
  • honed and chrome-plated piston rod
  • test pressure = 1.5 x max. working pressure
Servo hydraulic actuator series 300
  • bore 50 mm to 140 mm
  • working pressure up to 300 bar
  • as single-rod cylinder and double-rod cylinder
  • cylinder in round-head design
  • various mounting types
  • honed and chrome-plated piston rod
  • test pressure = 1.5 x max. working pressure
Test hydraulic actuator series 320
  • bore 28 mm to 320 mm
  • working pressure up to 320 bar
  • as double-rod cylinder
  • honed and chrome-plated piston rod
  • test pressure = 1.5 x max. working pressure

Hydraulic actuators are suitable for hydrodynamic applications. You can find out more about this under test actuator.

Suitability of the servo cylinder series according to frequency range

The required dynamics of the drive determine the cylinder's type of effect. With fast control valves, even single-rod cylinders achieve a high profile quality at high frequencies.

The limit values shown in the diagram are intended as guidelines for your design. They depend on various operating conditions - we will help you with your selection.

Suitability of the servo cylinder series according to frequency range

Equipment servo hydraulic actuator
Sealing and guiding systems

The sealing system in the cover and on the piston is the core component of a hydraulic cylinder and determines its application possibilities. This defines how sensitive the servo hydraulic actuator can be moved, what minimum amplitudes can be travelled and how side loads affect it. In addition, you can select sealing systems that are low in wear.

For servo hydraulic actuators operating in oscillating mode, we recommend the Servoslide® synthetic guide or PTFE wear rings as a guiding system in the cover.

Learn more about the equipment of cover and piston in the hydraulic cylinder here.

 

Accessories and tools for servo hydraulic actuators
Mounting elements, assembly tools and tools

You can find our standard accessories and tools in the HÄKO product configurator to match your selected cylinder.

Hydraulic cylinder accessories

Do you need suitable accessories for your servo hydraulic actuator?
We can supply you with:

  • spherical rod eyes
  • circular flanges
  • mounting plates
  • clevis brackets
  • screws
    and much more

For further information go to mounting elements.

Accessories
Hydraulic cylinder tools

Do you need help to simplify the handling of your servo hydraulic actuator?
We offer you:

  • sealing and assembly tool
  • venting set
  • Hook wrench
  • maintenance instructions as image documentation
  • engineering drawing in CAD
    and much more

For further information go to assembly tools.

Tools
Technical data of the servo hydraulic actuator

Type of effect: single-rod cylinder, double-rod cylinder | Sealing systems: Basic design, Servocop®, Servoseal®*, Servofloat® |
Speeds: up to 2 m/s | Stroke: 1 - 1,500 mm

 Series 120

150 bar**
 Series 160
ISO 6020-1
160 bar
  Series 300

300 bar
   
Bore
(mm)		 Rod Ø
(mm)		 Force F1 | F2
(kN)
 Force F1 | F2
(kN)
  Force F1 | F2
(kN)
40 25 18.8 |   11.5    ---      ---   
50 25
28
30
40		 29.5 | 22.1
---
29.5 | 18.8
---   		    ---
31.4 | 21.6
---
---  		    ---
---
58.9 | 37.7
58.9 | 21.2
60 30
40
50		 42.4 | 31.8
42.4 | 23.6
---   

  ---
---
---  

     ---
84.8 | 47.1
84.8 | 25.9
63 36     ---    49.9 |   33.6    ---   
80 40
45
50
60		 75.4 | 56.5
---
75.4 | 45.9
---  		    ---
80.4 | 55.0
---
---  		   ---
---
150.8 | 91.9
150.8 | 66.0
100 50
56
60
80		 117.8 | 88.4
---
117.8 | 75.4
---  		    ---
125.7 | 86.3
---
---  		    ---
---
235.6 | 150.8
235.6 | 84.8
125 60
70
80
100		 184.1 | 141.7
---
184.1 | 108.7
---  		    ---
196.3 | 134.8
---
---   		    ---
---
368.2 | 217.4
368.2 | 132.5
140

80
100

 230.9 | 155.5
230.9 | 113.1

   ---
---  

   ---
461.8 | 226.2

 
160

80
100

 301.6 | 226.2
301.6 | 183.8

   ---
---  

   ---
---  

 
180

100
120

 381.7 | 263.9
381.7 | 212.1

   ---
---  

   ---
---  

 

* Not for series 160
** When pivot mounting the pressure is limited to 120 bar.

F1 = force extending when extend the cylinder | F2 = force retracting when retraction the cylinder
For double-rod cylinders, retracting and extend correspond to the value F2.

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