Hydraulic cylinders – THERMACT

If you have a special application, it is possible to acquire the hydraulic cylinder from the small range openers in special configurations.

These special hydraulic cylinders belongs to a group of products we call Thermact. Basically the product group called Thermact is any special configuration of the hydraulic cylinder from our small range window openers.

Most of the Thermact cylinders are supplied with our window openers instead of the standard cylinder. But many Thermact is also used without the window openers as a stand-alone. This could be if you need to open a window in your house, winter garden or in your orangerie. But it is also used in industrial applications like in helicopters and wind turbines.

With the Thermact-program it should be possible for you to find a cylinder that fits exactly to your needs. The variety in the Thermact-program is proven by:

•    Temperature ranges right from 9 °C up to 45 °C
•    Stroke lengths from 27 mm all the way op to 206 mm
•    Several different combinations of piston rod ends and mounting elements
•    Push force 80 kg
•    Type B and D need 6 kg force to push the piston pin back
•    Type E: Pull force 0 kg

Link to Thermact general datasheet from our catalogue (pdf).

If you need a special configuration, color, brackets ect. not listed, please do not hesitate to contact us for further inquiry.


Hydraulic cylinder with an internal M6 thread in the end cap, and a 2.5 mm cotter hole in the piston rod end
Hydraulic cylinder with an internal M6 thread in the end cap, and an external M6 thread in the piston rod end
Hydraulic cylinder with a return spring and internal M6 threads in both ends


In addition to the hydraulic cylinders, you can equip them with different mounting elements.

frame_bracket_smBracket to install the cylinder on fx a window frame etc.
ball_joint_without_ang_bracket_smBall joint with M6 thread
ball_joint_with_ang_bracket_smBall joint including an angular bracket


The table below contains the stroke lengths for the different cylinder lengths and types of wax

Cylinder length (L)
Wax typeL = 130 mmL = 200 mmL = 273 mmL = 450 mm
FED38 mm65 mm93 mm160 mm
D27 mm45 mm64 mm111 mm
E49 mm83 mm119 mm206 mm
E5D46 mm78 mm111 mm191 mm
E10D41 mm70 mm100 mm173 mm
E15D37 mm63 mm90 mm155 mm
E20D35 mm60 mm86 mm148 mm
F40 mm67 mm96 mm166 mm
F10D46 mm78 mm112 mm194 mm
F20D41 mm70 mm100 mm173 mm


The table below contains the temperature ranges that the different wax blends works within.

Cylinder extensionCylinder retractionDatasheet
Wax typeStart extensionFully extendedStart retractionFully retractedpdf
FED17 °C34 °C31 °C13 °CFED
D9 °C12 °C8 °C6 °CD
E24 °C29 °C27 °C22 °CE
E5D21 °C27 °C24 °C19 °CE5D
E10D16 °C26 °C22 °C14 °CE10D
E15D15 °C25 °C21 °C12 °CE15D
E20D12 °C23 °C19 °C7 °CE20D
F41 °C45 °C41 °C38 °CF
F10D27 °C41 °C37 °C24 °CF10D
F20D20 °C40 °C34 °C15 °CF20D


Link to info sheet: Thermact for Nova Air (Ventilation ohne Strom! )

For Professionals/B2B
For Professionals/B2B


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Phone: (+45) 59 65 17 17
Mail: info@orbesenteknik.com

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