Ingersoll Rand 8228-12B Reversible Air Power Motor is engineered to deliver dependable pneumatic power for industrial applications requiring extremely low operating speeds, maximum output torque, and bidirectional operation. Rated at 0.50 HP, this air power motor operates at a free speed of 85 RPM and utilizes triple gear reduction to maximize torque multiplication while maintaining smooth, controlled rotary performance. Its reversible configuration enables clockwise and counterclockwise shaft rotation, making it ideal for OEM machinery, heavy-duty positioning systems, material handling equipment, indexing mechanisms, and industrial automation applications where precise, high-torque movement in either direction is essential.
The 8228-12B develops 60.00 ft-lbs of stall torque, representing the maximum torque generated when the output shaft is prevented from rotating. The triple gear reduction design delivers substantial rotational force at very low speeds, making this model an excellent choice for applications that demand controlled motion under heavy loads.
Type: Air Power Motor | Model: 8228-12B | Rotation: Reversible | Gear Reduction: Triple | Power: 0.50 HP | Speed: 85 RPM | Stall Torque: 60.00 ft-lbs
Features:
- Air-powered motor converts compressed air into dependable rotary power for industrial machinery.
- Reversible configuration enables clockwise and counterclockwise shaft rotation for flexible machine operation.
- Triple gear reduction maximizes output torque for demanding low-speed industrial applications.
- 0.50 HP output provides reliable pneumatic performance for compatible industrial equipment.
- 85 RPM free speed is ideal for applications requiring slow, controlled rotational movement with exceptionally high torque.
- 60.00 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 systems.
- Industrial automation, positioning, and indexing equipment.
- Processing machinery requiring high torque at very low operating speeds.
- Replacement applications where the published motor specifications match the original equipment.
FAQs:
- Q: Is the Ingersoll Rand 8228-12B reversible?
A: Yes. This model is designed for both clockwise and counterclockwise operation. - Q: What is the advantage of triple gear reduction?
A: Triple gear reduction provides maximum torque multiplication while significantly reducing output speed, making it ideal for applications requiring high rotational force and precise low-speed control. - Q: What is the rated operating speed?
A: The manufacturer specifies a free speed of 85 RPM. - Q: What does the 60.00 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 considered a 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
- Type
- Power Motor
- Spindle Keyed (in.)
- 1/2
- RPM
- 85
- Load Speed @ Max HP (RPM)
- 43
- Stall Torque (ft-lbs)
- 60.00
- Stall Torque (Nm)
- 81.3
- Torque Output @ Max HP (ft-lbs)
- 60.00
- Torque Output @ Max HP (Nm)
- 81.3
- Air Consumption (SCFM)
- 30
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