Slip-Aire Pneumatic Slip Clutch

The Polyclutch® Slip-Aire clutch is an air pressure-actuated version of the mechanical Slipper clutch. It has the same long-life friction plates, ensuring constant torque or tension. With air actuation it can be used to engage/disengage, to vary the torque during operation, or to adjust the torque remotely at any time. Ideal for servo mechanisms, they transmit higher torque levels than comparably sized mechanical slip clutches. Slip-Aire slip clutches are less expensive to purchase and operate than electrically actuated versions. Sealed ball bearings are available on selected models.

  • Can be adjusted remotely while the machine is in operation to accomplish quick, repeatable, accurate setup
  • Can accommodate shaft sizes up to 0.625″ (16mm)
  • Torque capacities of up to 300 lb-in
  • Fixed, adjustable and custom designs

Design Specs - English

Torque Capacity

Model No.Capacity, 50 PSI*Capacity, 100 PSI**WattsFriction Surfaces
AAS 20 & AAO 20122068
AAS 24 & AAO 2425501512
AAS 32 & AAO 32501003012
AAS 44 & AAO 44753004312

*Rated torque for continuous operation at 50 RPM. Torque can be higher or lower depending on actual RPM & duty cycle.
**Maximum torque attainable (at 100 PSI).

Slip-Aire Sizes

Model No.B (std)*B (max)ACDEEEFGHJ
AAS 20 & AAO 200.2500.3751.252.500.7600.250.502.001.0620.9410-32
AAS 24 & AAO 240.3750.5001.503.381.0100.380.752.631.3120.12510-32
AAS 32 & AAO 320.5000.6252.003.631.3850.501.002.631.6720.18810-32
AAS 44 & AAO 440.5000.6252.753.631.6350.501.002.632.3750.18810-32

*Bore diameters (Dimension B): other than standards shown are available up to the maximum diameter.

Design Specs - Metric

Torque Capacity

Model No.Capacity, 50 PSI*Capacity, 100 PSI**WattsFriction Surfaces
AAS 20 & AAO 201.362.2668
AAS 24 & AAO 242.825.651512
AAS 32 & AAO 325.6511.303012
AAS 44 & AAO 448.4733.9043.00012

*Rated torque for continuous operation at 50 RPM. Torque can be higher or lower depending on actual RPM & duty cycle.
**Maximum torque attainable (at 100 PSI).

Slip-Aire Sizes

Model No.B (std)*B (max)ACDEEEFGHJ
AAS 20 & AAO 2081031.7563.5019.306.3512.7050.8026.982.3910-32
AAS 24 & AAO 24101338.1085.8525.659.6519.0566.8033.733.1810-32
AAS 32 & AAO 32121650.8092.2035.1812.7025.4066.8042.474.7810-32
AAS 44 & AAO 44121669.8592.2041.5312.7025.4066.8060.334.7810-32

*Bore diameters (Dimension B): other than standards shown are available up to the maximum diameter.

How to Specify

Specifying a Polyclutch Part Number:

Part Number Example (Slip Aire)

Standard Options

  • Bore size changes – English (inches) and metric (mm)
  • High torque option, accomplished by extra springs – “H” part no. suffix
  • Will increase capacity of standard adjustable slip clutches to 50% (note: removing springs will lower capacity, increase sensitivity)
  • Keyways – English and metric – “K” part no. suffix
  • Heavy inner plates for extra cooling – “D” part no. suffix
  • 303/304 stainless steel construction – “Q” part no. prefix
  • Plastic cover

Custom Clutches: If you are looking for something outside of our standard options, our engineers will work with you to help design a clutch for your specific application. Just ask!

CAD Files

3D Models (.STP)

The files are the standard bore diameter for each size. Please contact us if you require a model in a different bore diameter.

SizesShaft-ThroughShaft-to-Shaft
Size 20AAO20-4AAS20-4
Size 24AAO24-6AAS24-6
Size 32AAO32-8AAS32-8
Size 44AAO44-8AAS44-8

Relevant Resources

Want to speak with our Polyclutch experts? Call us at (262) 786-1500.