Ingersoll Rand 3800P Multi-Vane Non-Reversible Air Motor is designed to provide dependable pneumatic rotary power for industrial equipment requiring substantial torque at a controlled operating speed. Part of the 3800 Series, this air motor delivers 1.45 HP with a free speed of 600 RPM. Its multi-vane design converts compressed air into continuous rotary motion, while the non-reversible configuration supports applications that require consistent operation in one direction.
The 3800P produces 42 ft-lbs starting torque, which indicates the torque available as the motor begins moving a connected load, and 56.5 ft-lbs stall torque, which is the maximum torque developed when the output shaft is prevented from rotating. This speed-and-torque combination is suited to compatible OEM machinery, material handling equipment, mixers, conveyors, and processing systems where low-speed pneumatic drive power is required.
Type: Multi-Vane Air Motor | Series: 3800 Series | Model: 3800P | Rotation: Non-Reversible | Power: 1.45 HP | Free Speed: 600 RPM | Starting Torque: 42 ft-lbs | Stall Torque: 56.5 ft-lbs
Features:
- Multi-vane motor design converts compressed air into continuous rotary output for compatible industrial equipment.
- Non-reversible configuration provides dependable operation in a single rotational direction.
- 1.45 HP output provides a defined power rating for motor and application matching.
- 600 RPM free speed supports equipment requiring controlled, lower-speed rotary motion.
- 42 ft-lbs starting torque helps evaluate the motor’s ability to initiate movement under load.
- 56.5 ft-lbs stall torque provides a manufacturer-published maximum torque reference.
- 3800 Series configuration supports OEM and replacement applications where the published specifications and mechanical interfaces match.
Made in USA: 
Applications:
- OEM machinery requiring single-direction pneumatic rotary power.
- Industrial mixers and agitators compatible with the stated speed and torque ratings.
- Conveyor and material handling equipment.
- Processing and production machinery requiring controlled rotary motion.
- Replacement installations where the 3800P dimensions, mounting arrangement, shaft configuration, and performance ratings match the existing motor.
FAQs:
- Q: Is the Ingersoll Rand 3800P reversible?
A: No. This model is specified as a non-reversible air motor for applications requiring operation in one rotational direction. - Q: What is the rated free speed of the 3800P?
A: The manufacturer specifies a free speed of 600 RPM. - Q: What does the 42 ft-lbs starting torque rating mean?
A: Starting torque is the torque available as the motor begins rotating the connected load from rest. - Q: Is 56.5 ft-lbs the normal continuous operating torque?
A: No. The 56.5 ft-lbs value is stall torque, which occurs when the applied load prevents the output shaft from rotating. - Q: What should be checked before installation?
A: Verify horsepower, free speed, torque requirements, rotation direction, shaft dimensions, mounting configuration, and compressed-air requirements using the Ingersoll Rand Air Motor Catalog.

| 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
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