The R series was named because the tube is roll formed and therefore permanently closed, making these springs non-repairable.
R series springs are available with Ø12, Ø15, and Ø19 mm tube diameters and with stroke lengths up to 125 mm. There are 4 color-coded models, all with preset forces. An adjustable model (black) is also available. It can be ordered either set to a specific charge pressure or it can be adjusted by customers with the appropriate charging equipment and training.
|Min. operating temperature (°C)||0|
|Max. operating temperature (°C)||80|
|Force increase by temperature (%/ °C)||0.3|
|Max. charging pressure (bar at 20°C)||180|
|Max. piston rod velocity (m/s)||1.6|
Initial Force (N)
Cylinder Diameter (mm)
Stroke Length (mm)
Total Length (mm)
Available stroke lengths
Initial force at max. pressure
|Gas link system||Length equation||
|Min. charging pressure
(bar at 20°C)
|Recommended max. strokes/min.
|R12||7 - 125||500||No||56 - 295||12||20||~40-100|
|R15||7 - 125||700||No||56 - 295||15||20||~100-150|
|R19||7 - 125||900||No||56 - 295||19||25||~100-150|