
Ingersoll Rand 8228-9B Reversible Air Power Motor is engineered for demanding industrial applications requiring maximum torque, low operating speed, and bidirectional pneumatic drive. Rated at 0.50 HP, this air power motor delivers a free speed of 200 RPM and incorporates triple gear reduction to provide exceptional torque multiplication while maintaining smooth and dependable operation. Its reversible configuration allows both clockwise and counterclockwise shaft rotation, making it well suited for OEM machinery, indexing equipment, material handling systems, automated production machinery, and industrial applications where controlled movement in either direction is required.
The 8228-9B develops 45.00 ft-lbs of stall torque, representing the maximum torque generated when the output shaft is prevented from rotating. The triple gear reduction design significantly increases output torque while reducing operating speed, making this model ideal for applications requiring substantial rotational force under heavy loads.
Type: Air Power Motor | Model: 8228-9B | Rotation: Reversible | Gear Reduction: Triple | Power: 0.50 HP | Speed: 200 RPM | Stall Torque: 45.00 ft-lbs
Features:
- Air-powered motor converts compressed air into dependable rotary power for industrial equipment.
- Reversible configuration enables clockwise and counterclockwise shaft rotation for versatile machine integration.
- Triple gear reduction provides maximum torque multiplication for demanding low-speed applications.
- 0.50 HP output delivers reliable pneumatic performance for compatible industrial machinery.
- 200 RPM free speed is well suited for applications requiring controlled rotational movement with very high torque.
- 45.00 ft-lbs stall torque provides a manufacturer-published reference for evaluating maximum loading conditions.
- Compact geared construction supports installation in OEM machinery and industrial replacement applications.
Made in USA: 
Applications:
- OEM machinery requiring reversible pneumatic rotary power.
- Heavy-duty material handling and conveyor equipment.
- Industrial automation, positioning, and indexing systems.
- Processing and manufacturing machinery requiring high output torque.
- Replacement applications where the published motor specifications match the original equipment.
FAQs:
- Q: Is the Ingersoll Rand 8228-9B reversible?
A: Yes. This model is designed to operate in both clockwise and counterclockwise directions. - Q: What is the advantage of triple gear reduction?
A: Triple gear reduction provides greater torque multiplication than single- or double-reduction designs, making it suitable for applications requiring maximum output torque at lower operating speeds. - Q: What is the rated operating speed?
A: The manufacturer specifies a free speed of 200 RPM. - Q: What does the 45.00 ft-lbs stall torque specification indicate?
A: Stall torque is the maximum torque produced when the output shaft is prevented from rotating. It serves as a performance reference and should not be interpreted as continuous operating torque. - Q: What should be verified before installation?
A: Confirm horsepower, operating speed, rotation direction, gear reduction, shaft dimensions, mounting arrangement, and compressed-air requirements using the Ingersoll Rand Air Motor Catalog before installation.

| SKU | Spindle | R.P.M. | Torque | Air Consumption at Free Speed | Sound Level at Free Speed | Weight | Gear Reduction | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Free Speed | Load Speed at Max. Hp | Stall | Output at Max. Hp | ||||||||||
| lb-ft | Nm | lb-ft | Nm | SCFM | L/s | dB(A) | lbs | kg | |||||
| NON-REVERSIBLE - 0.60 HP | |||||||||||||
| 8226-6A | 1/2" Keyed | 700 | 350 | 17.20 | 23.3 | 9.00 | 12.2 | 40.5 | 19.1 | 80 | 4.25 | 1.91 | Double |
| 8226-7A | 1/2" Keyed | 450 | 225 | 26.00 | 35.2 | 13.70 | 18.6 | 40.5 | 19.1 | 80 | 4.25 | 1.91 | Double |
| 8226-8A | 1/2" Keyed | 375 | 185 | 32.00 | 43.4 | 17.00 | 23.0 | 40.5 | 19.1 | 80 | 4.25 | 1.91 | Double |
| 8226-10A | 1/2" Keyed | 170 | 87 | 60.00** | 88.1 | 36.00 | 48.8 | 40.5 | 19.1 | 80 | 5.56 | 2.50 | Triple |
| 8226-11A** | 1/2" Keyed | 110 | 57 | 60.00** | 134.1 | 55.00 | 74.5 | 40.5 | 19.1 | 80 | 5.56 | 2.50 | Triple |
| 8226-12A** | 1/2" Keyed | 90 | 45 | 60.00** | 165.3 | 60.00** | 94.8 | 40.5 | 19.1 | 80 | 5.56 | 2.50 | Triple |
| 8226-13A** | 1/2" Keyed | 60 | 30 | 60.00** | 249.3 | 60.00** | 139.6 | 40.5 | 19.1 | 80 | 5.56 | 2.50 | Triple |
| 8226-14A** | 1/2" Keyed | 50 | 25 | 60.00** | 306.2 | 60.00** | 169.4 | 40.5 | 19.1 | 80 | 5.56 | 2.50 | Triple |
| REVERSIBLE - 0.50 HP | |||||||||||||
| 8228-2B | 1/2" Keyed | 3,200 | 1,550 | 2.90 | 3.9 | 1.70 | 2.3 | 30 | 14 | 80* | 4.25 | 1.91 | Double |
| 8228-3B | 1/2" Keyed | 2,600 | 1,300 | 3.50 | 4.7 | 2.00 | 2.7 | 30 | 14 | 80* | 4.25 | 1.91 | Double |
| 8228-5B | 1/2" Keyed | 800 | 420 | 11.20 | 15.2 | 6.30 | 8.5 | 30 | 14 | 80* | 4.25 | 1.91 | Double |
| 8228-6B | 1/2" Keyed | 650 | 330 | 13.80 | 18.7 | 8.00 | 10.8 | 30 | 14 | 80* | 4.25 | 1.91 | Double |
| 8228-7B | 1/2" Keyed | 425 | 220 | 20.00 | 27.1 | 12.00 | 16.3 | 30 | 14 | 80* | 4.25 | 1.91 | Double |
| 8228-8B | 1/2" Keyed | 350 | 185 | 25.00 | 33.9 | 14.00 | 19.0 | 30 | 14 | 80* | 4.25 | 1.91 | Double |
| 8228-9B | 1/2" Keyed | 200 | 105 | 45.00 | 61.0 | 25.00 | 33.9 | 30 | 14 | 80* | 5.56 | 2.50 | Triple |
| 8228-10B | 1/2" Keyed | 160 | 80 | 55.00 | 74.5 | 33.00 | 44.7 | 30 | 14 | 80* | 5.56 | 2.50 | Triple |
| 8228-11B** | 1/2" Keyed | 100 | 54 | 60.00** | 81.3 | 48.00 | 65.0 | 30 | 14 | 80* | 5.56 | 2.50 | Triple |
| 8228-12B** | 1/2" Keyed | 85 | 43 | 60.00** | 81.3 | 60.00** | 81.3 | 30 | 14 | 80* | 5.56 | 2.50 | Triple |
| 8228-13B** | 1/2" Keyed | 50 | 28 | 60.00** | 81.3 | 60.00** | 81.3 | 30 | 14 | 80* | 5.56 | 2.50 | Triple |
| 8228-14B** | 1/2" Keyed | 40 | 22 | 60.00** | 81.3 | 60.00** | 81.3 | 30 | 14 | 80* | 5.56 | 2.50 | Triple |
Looking for more information about Ingersoll Rand Air Power Motor? Click here to view the Catalog
For help selecting the correct Ingersoll Rand Air Power Motors for your assembly application, call (800) 608-5210 or email info@intlairtool.com
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov