Ingersoll Rand 7803-3B Non-Reversible Milling Motor is designed to provide controlled pneumatic rotary power for milling machinery and other equipment requiring dedicated forward rotation. This 0.85 HP air motor operates at a 1,200 RPM free speed and delivers 16.00 ft-lbs of stall torque. Its double gear reduction configuration provides reduced output speed with increased torque capability, making it well suited for applications where controlled rotation and substantial output torque are required.
The 7803-3B uses a non-reversible, forward-rotation configuration for equipment designed to operate in one direction. Its gear-reduced pneumatic design provides a practical combination of 0.85 HP input power, controlled 1,200 RPM speed, and high stall torque for compatible milling and industrial machinery applications.
Product Type: Non-Reversible Milling Motor | Rotation: Forward-Rotation | Power: 0.85 HP | Free Speed: 1,200 RPM | Stall Torque: 16.00 ft-lbs | Gear Reduction: Double
Equipment Options:
45058 - Foot Bracket
41559 - Flange Bracket

Features:
- Forward-only rotation provides dedicated directional operation for compatible milling equipment.
- 0.85 HP pneumatic motor provides dependable rotary power for industrial machinery.
- 1,200 RPM free speed provides controlled output speed for applications requiring reduced rotational speed.
- Double gear reduction increases the mechanical reduction between motor input and output for applications requiring higher output torque.
- 16.00 ft-lbs stall torque provides substantial torque capability when the motor is stopped under load.
- Pneumatic power provides an alternative drive source for compatible milling and industrial equipment.
Made in USA: ![]()
Applications:
- Milling machinery requiring controlled forward-only rotation.
- Industrial production equipment requiring gear-reduced pneumatic rotary power.
- OEM machinery and equipment integration.
- Custom machinery where reduced output speed and increased torque capability are required.
- Equipment applications where pneumatic power is preferred over an electric motor.
FAQs:
- Q: Is the 7803-3B reversible?
A: No. The 7803-3B is a non-reversible milling motor designed for forward rotation. - Q: What does double gear reduction mean?
A: It indicates that the motor uses two stages of gear reduction to reduce output speed and provide increased torque capability compared with a direct-drive arrangement. - Q: What is the free speed of the 7803-3B?
A: The published free speed is 1,200 RPM. - Q: What does the 16.00 ft-lbs stall torque rating indicate?
A: Stall torque is the torque available when the motor is stopped under load. The 7803-3B has a published stall torque of 16.00 ft-lbs. - Q: What type of equipment can use this milling motor?
A: It is intended for compatible milling machinery and other industrial equipment requiring forward-only pneumatic rotation with reduced output speed and substantial torque capability. The motor's mounting, shaft, speed, torque, and air requirements should be matched to the equipment before installation.

| SKU | Spindle | R.P.M. | Torque | Air Consumption at Free Speed |
Sound Level at Free Speed dB(A) |
Weight | Gear Reduction |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Free Speed |
Load Speed at Max. Hp |
Stall | Output at Max. Hp |
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| lb-ft | Nm | lb-ft | Nm | SCFM | L/s | lbs | kg | ||||||
| NON-REVERSIBLE - 0.85 HP | |||||||||||||
| 7801-3B | 7/16"-20 UNF-3A Threaded, Plus 1/8" Sq. Key Drive |
4,600 | 2,400 | 4.00 | 5.5 | 1.86 | 2.5 | 41.7 | 19.7 | 78 | 4.89 | 2.20 | Single |
| 7803-3B | 1,200 | 600 | 16.00 | 21.9 | 7.44 | 10.2 | 41.7 | 19.7 | 78 | 6.39 | 2.86 | Double | |
| 7804-3B | 650 | 330 | 30.00 | 41.2 | 13.95 | 19.1 | 41.7 | 19.7 | 78 | 6.39 | 2.86 | Double | |
| 7805-3B | 350 | 170 | 55.00 | 75.5 | 26.25 | 36.0 | 41.7 | 19.7 | 78 | 6.39 | 2.86 | Double | |
Looking for more information about Ingersoll Rand Milling Motor? Click here to view the Catalog
For help selecting the correct Ingersoll Rand Milling 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
