Ingersoll Rand 8211-A Reversible Air Power Motor is engineered to deliver dependable pneumatic rotary power for industrial applications requiring very high operating speeds, compact power delivery, and bidirectional capability. Producing 1.9 HP at a free speed of 14,000 RPM, this air motor features a single-gear-reduction design that provides an effective balance between rotational speed and output torque. Its reversible configuration enables clockwise and counterclockwise operation, making it well suited for OEM machinery, high-speed production equipment, spindle drives, automated manufacturing systems, and other compressed-air powered applications requiring flexible directional control.
The 8211-A develops a 2.2 ft-lbs stall torque, representing the maximum torque produced when the output shaft is prevented from rotating. This combination of high horsepower, very high operating speed, single gear reduction, and reversible operation makes the motor an excellent choice for industrial equipment requiring reliable pneumatic power with controlled bidirectional rotary motion.
Type: Air Power Motor | Model: 8211-A | Rotation: Reversible | Power: 1.9 HP | Free Speed: 14,000 RPM | Stall Torque: 2.2 ft-lbs | Gear Reduction: Single
Features:
- Provides dependable pneumatic rotary power for demanding industrial applications.
- Reversible configuration delivers reliable clockwise and counterclockwise operation.
- 1.9 HP output supports high-performance pneumatic drive applications.
- 14,000 RPM free speed is ideal for equipment requiring very high-speed rotary motion.
- Single gear reduction delivers increased torque compared to a direct-drive configuration while maintaining higher operating speeds.
- 2.2 ft-lbs stall torque provides a manufacturer-published reference for evaluating maximum torque capability.
- Compact motor design integrates easily into compatible OEM machinery and replacement installations.
- Compressed-air operation eliminates the need for electrical power at the motor, making it suitable for facilities utilizing centralized pneumatic systems.
Made in USA: 
Applications:
- OEM machinery requiring reversible pneumatic rotary power.
- High-speed spindle and rotary drive applications.
- Automated manufacturing and assembly equipment.
- Production machinery requiring bidirectional operation.
- Replacement applications where the published motor specifications match the original equipment.
FAQs:
- Q: Is the Ingersoll Rand 8211-A reversible?
A: Yes. This model is designed to operate in both clockwise and counterclockwise directions for applications requiring bidirectional shaft rotation. - Q: What is the rated free speed?
A: The manufacturer specifies a free speed of 14,000 RPM. - Q: What does single gear reduction mean?
A: Single gear reduction uses one stage of gearing to reduce output speed while increasing available output torque compared to a direct-drive configuration. - Q: What does the 2.2 ft-lbs stall torque rating indicate?
A: Stall torque is the maximum torque the motor develops when the output shaft is prevented from rotating. - Q: What should be verified before installation?
A: Confirm horsepower, free speed, gear reduction, rotation direction, 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 - 2.0 HP | |||||||||||||
| 8200-A | 7/8" Keyed | 275 | 140 | 124.00 | 168.0 | 75.00 | 101.6 | 95.0 | 44.8 | 80 | 18.24 | 8.20 | Double |
| 8201-A | 7/8" Keyed | 500 | 255 | 70.50 | 95.5 | 41.00 | 55.5 | 95.0 | 44.8 | 80 | 18.24 | 8.20 | Double |
| 8202-A | 7/8" Keyed | 900 | 445 | 40.50 | 54.9 | 24.00 | 32.5 | 95.0 | 44.8 | 80 | 18.24 | 8.20 | Double |
| 8204-A | 7/8" Keyed | 3,500 | 1,740 | 10.20 | 13.8 | 6.00 | 8.1 | 95.0 | 44.8 | 80 | 13.82 | 5.21 | Single |
| 8205-A | 7/8" Keyed | 14,000 | 7,000 | 2.85 | 3.9 | 1.50 | 2.0 | 95.0 | 44.8 | 80 | 13.82 | 5.21 | Single |
| Reversible - 1.9 HP | |||||||||||||
| 8206-A | 7/8" Keyed | 275 | 150 | 105.00 | 142.3 | 66.5 | 90.1 | 93.5 | 44.1 | 95* | 18.24 | 8.20 | Double |
| 8207-A | 7/8" Keyed | 500 | 250 | 60.00 | 81.3 | 39.9 | 54.1 | 93.5 | 44.1 | 95* | 18.24 | 8.20 | Double |
| 8208-A | 7/8" Keyed | 900 | 450 | 35.00 | 47.4 | 22.2 | 30.1 | 93.5 | 44.1 | 95* | 18.24 | 8.20 | Double |
| 8209-A | 7/8" Keyed | 2,000 | 1,000 | 15.0 | 20.3 | 9.97 | 13.5 | 93.5 | 44.1 | 95* | 13.82 | 5.21 | Single |
| 8210-A | 7/8" Keyed | 3,500 | 1,800 | 8.5 | 11.5 | 5.54 | 7.5 | 93.5 | 44.1 | 95* | 13.82 | 5.21 | Single |
| 8211-A | 7/8" Keyed | 14,000 | 7,000 | 2.2 | 3.0 | 1.43 | 1.9 | 93.5 | 44.1 | 95* | 13.82 | 5.21 | Single |
Looking for more information about Ingersoll Rand Power Motor? Click here to view the Catalog
For help selecting the correct Ingersoll Rand 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
