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Pneumatic swivel and turning unit


These rotary actuators has a particular compactetion and ruggedness, the hight torque and the stroke dispositives of regulation and deceleration.
Spindle rotation, supports on prestressed obliques and drilling lock nut, is assured by apair of rack pistons in treated steel.


  • Rotation angle can be adjusted with precision, with a total extra stroke approx. of 2°, through two threaded pushroads and one or two contrast blicks built into the cap (optional).
  • Stop is made directly on the spindle assuring precision and reliability.
  • Deceleration is guaranteed by hydraulic shock absorbers, with incorporated cartridge and pressure-tinght, with act on the rack pisto and the rotation can be controlled via integrated sensors, that detect the magnetic field generated by a rubber magnet ring fixed up one of two rack piston. It is possible to have as optional the rotation control with proximity sensors fixed with two external grub screws (to stop the actuator) to detect the spindle position.
  • All versions has an internal circuit that feeds bith sides of the piston (to obtain the maximum torque) connected only on one side for simplicity and to save space.


3D DrawingModelRotation angleFluid consumption double strokeTheoretical rotation torque
@ 6 bar
WeightRepeat accuracy
AR 16-90° 90° 20 cm³0.35 daNm1.5 kg± 0.01 mm
AR 16-180° 180° 39 cm³0.35 daNm2 kg± 0.01 mm
AR 20-90° 90° 38 cm³0.65 daNm2.5 kg± 0.01 mm
AR 20-180° 180° 73 cm³0.65 daNm3 kg± 0.01 mm
AR 25-90° 90° 68 cm³1.2 daNm3 kg± 0.01 mm
AR 25-180° 180° 133 cm³1.2 daNm4.2 kg± 0.01 mm
AR 32-90° 90° 132 cm³2.4 daNm4.5 kg± 0.01 mm
AR 32-180° 180° 258 cm³2.4 daNm6 kg± 0.01 mm
AR 45-90° 90° 286 cm³5.2 daNm8 kg± 0.01 mm
AR 45-180° 180° 560 cm³5.2 daNm11.5 kg± 0.01 mm
AR 50-90° 90° 424 cm³7.7 daNm12.5 kg± 0.01 mm
AR 50-180° 180° 832 cm³7.7 daNm18 kg± 0.01 mm

Operating pressure 4 – 8 bar
Ambient temperature 5-60°C
Sound emissions (sound pressure) ≤ 70 db (A) in each direction

The dimensions are indicative and susceptible to changes due to technical improvements. We reserve the right to make changes without notice.