Ingersoll Rand 3800M Multi-Vane Non-Reversible Air Motor is engineered to deliver dependable pneumatic rotary power for industrial equipment requiring high torque with controlled operating speeds. Producing 1.55 HP with a free speed of 1,100 RPM, this 3800 Series air motor utilizes a durable multi-vane design to provide smooth, continuous power delivery in demanding industrial environments. Its non-reversible configuration ensures reliable single-direction operation, making it well suited for OEM machinery, conveyors, industrial mixers, material handling systems, processing equipment, and other compressed-air powered applications requiring consistent rotary performance.
The 3800M develops a 24 ft-lbs starting torque, providing strong breakaway force to initiate rotation under load, and a 33 ft-lbs stall torque, representing the maximum torque produced when the output shaft is prevented from rotating. This combination of horsepower, controlled speed, and increased torque makes the motor an excellent choice for industrial applications requiring dependable pneumatic power and steady rotary output.
Type: Multi-Vane Air Motor | Series: 3800 Series | Model: 3800M | Rotation: Non-Reversible | Power: 1.55 HP | Free Speed: 1,100 RPM | Starting Torque: 24 ft-lbs | Stall Torque: 33 ft-lbs
Features:
- Multi-vane air motor design delivers smooth, dependable pneumatic rotary power.
- Non-reversible configuration provides reliable continuous operation in one direction.
- 1.55 HP output supports demanding industrial pneumatic drive applications.
- 1,100 RPM free speed offers an effective balance between operating speed and output torque.
- 24 ft-lbs starting torque helps overcome initial load resistance during startup.
- 33 ft-lbs stall torque provides a manufacturer-published reference for evaluating maximum torque capability.
- Compact motor design integrates easily into OEM machinery and industrial equipment.
- 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 dependable single-direction pneumatic rotary power.
- Industrial mixers, agitators, and processing equipment.
- Conveyor and material handling systems.
- Packaging and production machinery.
- Replacement applications where the published motor specifications match the original equipment.
FAQs:
- Q: Is the Ingersoll Rand 3800M reversible?
A: No. This model is a non-reversible air motor designed for continuous operation in one direction. - Q: What is a multi-vane air motor?
A: A multi-vane air motor uses sliding vanes inside a rotor to convert compressed air into smooth, continuous rotary motion with consistent power delivery. - Q: What is the rated free speed?
A: The manufacturer specifies a free speed of 1,100 RPM. - Q: What is the difference between starting torque and stall torque?
A: Starting torque is the torque available to begin rotating a load from rest, while 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, rotation direction, shaft dimensions, mounting arrangement, and compressed-air requirements using the Ingersoll Rand Air Motor Catalog before installation.

| SKU | Max. Power | Speed at Max. Power rpm |
Free Speed rpm |
Starting Torque | Stall Torque | Air Consumption at Max. Power | Weight | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hp | kw | lb-ft | Nm | lb-ft | Nm | scfm | m³/m | lb | kg | |||
| NON-REVERSIBLE — Direction of rotation is counterclockwise when facing the shaft | ||||||||||||
| 3800M | 1.55 | 1.16 | 520 | 1,100 | 24 | 32.5 | 33 | 44.8 | 48 | 1.36 | 7 1/8 | 3.23 |
| 3800P | 1.45 | 1.08 | 285 | 600 | 42 | 57 | 56.5 | 76.6 | 48 | 1.36 | 8 1/2 | 3.86 |
| 3800Q | 1.45 | 1.08 | 180 | 375 | 62 | 84 | 83.5 | 113 | 48 | 1.36 | 8 1/2 | 3.86 |
| 3800R | 1.45 | 1.08 | 150 | 320 | 72 | 98 | 96 | 130 | 48 | 1.36 | 8 1/2 | 3.86 |
| 3800S | 1.45 | 1.08 | 120 | 255 | 88 | 119 | 118 | 160 | 48 | 1.36 | 8 1/2 | 3.86 |
| 3800U | 1.45 | 1.08 | 105 | 220 | 105 | 142 | 140 | 189 | 48 | 1.36 | 8 1/2 | 3.86 |
| REVERSIBLE | ||||||||||||
| 3840M | 1.40 | 1.04 | 390 | 825 | 23 | 31.2 | 31.5 | 42.7 | 44 | 1.25 | 7 3/8 | 3.35 |
| 3840P | 1.35 | 1.01 | 215 | 440 | 40 | 54.2 | 53.5 | 72.6 | 44 | 1.25 | 8 3/4 | 3.97 |
| 3840Q | 1.35 | 1.01 | 130 | 280 | 60 | 81.4 | 80 | 106 | 44 | 1.25 | 8 3/4 | 3.97 |
| 3840R | 1.35 | 1.01 | 122 | 238 | 69 | 93 | 92 | 125 | 44 | 1.25 | 8 3/4 | 3.97 |
| 3840S | 1.35 | 1.01 | 100 | 190 | 86 | 116 | 115 | 156 | 44 | 1.25 | 8 3/4 | 3.97 |
| 3840U | 1.35 | 1.01 | 83 | 162 | 100 | 135 | 134 | 181 | 44 | 1.25 | 8 3/4 | 3.97 |
Looking for more information about Ingersoll Rand Air Motor? Click here to view the Catalog
For help selecting the correct Ingersoll Rand Air 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
