Pneumatic Rotary Actuators

Pneumatic rotary actuators are types of devices that are operated by compressed air that produces a rotary motion via a shaft to control the speed and rotation of attached equipment.

An actuator receives and converts a source of energy and uses it to make something move or operate. Actuator types can be linear or rotary, meaning it cam move something in a circular spinning motion. When purchasing a rotary actuator things to considered include rotation angle, how much air is required for the task,  materials and interface.

Types of pneumatic rotary actuators:

Both designs are available as double action (air is supplied to both sides of the piston) or single action (air supplied to only one side).

  • Rack and pinion rotary actuators - this type of actuator has a better range of rotation and torque than the vane type and are usually larger in size and ideal for medium duty applications that need more speed.  They also have a longer lifespan then the vane type
  • Rotary vane actuators - these actuators are more limited in rotation than the rack types and often used for lighter loads.

How do pneumatic rotary actuators work?


Compressed air is connected into the pneumatic connection on the rotary actuator which drives a cylinder stroke into an oscillating rotary motion.

Where would you use a pneumatic rotary actuator?

These actuators are commonly used in industrial applications for conveying, clamping, transferring parts, positioning, and controlling valves and can be used in hazardous areas.


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Description Price Manufacturer Series Action Bore Rotary Angle Maximum Input Pressure Maximum Operating Pressure Absolute Maximum Pressure Force at 7 bar Cushioning Type Port Connection Weight Series Size Type
RS Stock No. 796-7272
Mfr. Part No.CRB2BW30-90SZ
BrandSMC
£106.62
Each
Units
CRB Double 30mm 90° - 1 MPa - - Rubber M5 x 0.8 199g - -
RS Stock No. 302-5800
Mfr. Part No.CRB1BW50-180S-XF
BrandSMC
£170.63
Each
Units
CRB1 - 50mm 180° - - 1MPa - Rubber G 1/8 790g - -
RS Stock No. 227-4449
Mfr. Part No.MSQB10A
BrandSMC
£386.86
Each
Units
MSQ - 15mm 190° - - 1MPa - Rubber M5 x 0.8 530g - -
RS Stock No. 796-7281
Mfr. Part No.CRB2BW30-180SZ
BrandSMC
£106.62
Each
Units
CRB Double 30mm 180° - 1 MPa - - Rubber M5 x 0.8 198g - -
RS Stock No. 838-8910
Mfr. Part No.CDUJB6-8S
BrandSMC
£26.25
Each
Units
CUJ Single 6mm - - 0.7 MPa 1.05MPa 10.99 (IN) N, 19.79 (OUT) N Not Cushioned M3 x 0.5 42.5g - -
RS Stock No. 796-7278
Mfr. Part No.CRB2BW30-270SZ
BrandSMC
£106.62
Each
Units
CRB Double 30mm 270° - 1 MPa - - Rubber M5 x 0.8 400g - -
RS Stock No. 302-5793
Mfr. Part No.CRB1BW50-90S-XF
BrandSMC
£170.57
Each
Units
CRB1 - 50mm 90° - - 1MPa - Rubber G 1/8 810g - -
RS Stock No. 121-5345
Mfr. Part No.DFPD-80-RP-90-RD-F0507
BrandFesto
£146.34
Each
Units
- Double - 90° 8bar 8 bar - - Not Cushioned - 3308g DFPD Compact
RS Stock No. 227-4455
Mfr. Part No.MSQB20A
BrandSMC
£431.56
Each
Units
MSQ - 18mm 190° - - 1MPa - Rubber M5 x 0.8 990g - -
RS Stock No. 885-2212
Mfr. Part No.CDRB2BW20-180SZ
BrandSMC
£135.67
Each
Units
- Double 20mm 180° 0.7MPa 0.7 MPa 1.05MPa - - M3 x 0.5 130.6g - Standard
RS Stock No. 125-9920
Mfr. Part No.DRVS-16-90-P
BrandFesto
£109.26
Each
Units
DRVS Single 16mm 90° 8bar 8 bar 8bar 10 (Axial) N, 15 (Radial) N Elastic M5 272g DRVS Standard
RS Stock No. 796-7288
Mfr. Part No.CRB2BW20-90SZ
BrandSMC
£105.52
Each
Units
CRB Double 20mm 90° - 0.7 MPa - - Rubber M5 x 0.8 280g - -
RS Stock No. 796-7297
Mfr. Part No.CRB2BW10-90SZ
BrandSMC
£102.37
Each
Units
CRB Double 10mm 90° - 0.7 MPa - - Rubber M3 x 0.8 280g - -
RS Stock No. 796-7307
Mfr. Part No.CRB2BW20-270SZ
BrandSMC
£105.52
Each
Units
CRB Double 20mm 270° - 0.7 MPa - - Rubber M5 x 0.8 101g - -
RS Stock No. 849-7556
Mfr. Part No.NCRB1BW30-180S
BrandSMC
£68.77
Each
Units
NCRB1 Double 30mm 180° 0.23MPa 0.23 MPa 1.5MPa - Not Cushioned 10-32 UNF 225g - -
RS Stock No. 796-7304
Mfr. Part No.CRB2BW10-180SZ
BrandSMC
£102.37
Each
Units
CRB Double 10mm 180° - 0.7 MPa - - Rubber M3 x 0.8 26.7g - -
RS Stock No. 796-7284
Mfr. Part No.CRB2BW20-180SZ
BrandSMC
£105.52
Each
Units
CRB Double 20mm 180° - 0.7 MPa - - Rubber M5 x 0.8 103g - -
RS Stock No. 121-4309
Mfr. Part No.DFPD-40-RP-90-RD-F0507
BrandFesto
£106.44
Each
Units
DFPD Double - 90° 8bar 8 bar - - Not Cushioned G 1/8 1882g DFPD Compact
RS Stock No. 121-5296
Mfr. Part No.DFPD-10-RP-90-RD-F03
BrandFesto
£69.35
Each
Units
- Double - 90° 8bar 8 bar - - Not Cushioned - 965g DFPD Compact
RS Stock No. 125-9919
Mfr. Part No.DRVS-6-180-P
BrandFesto
£107.61
Each
Units
- Single 6mm 180° - 8 bar 8bar 25 (Axial) N, 30 (Radial) N Elastic M3 38g - Standard