Ingersoll Rand 3840R Multi-Vane Reversible Air Motor | Series 3840 | 1.35 HP | 238 RPM | 69 (ft-lbs) Starting Torque | 92 (ft-lbs) Stall Torque

Ingersoll Rand 3840R Multi-Vane Reversible Air Motor is engineered to provide dependable pneumatic rotary power for industrial equipment requiring high output torque, controlled low-speed operation, and bidirectional capability. Part of the 3840 Series, this air motor delivers 1.35 HP with a free speed of 238 RPM. Its durable multi-vane design converts compressed air into smooth, continuous rotary motion, while the reversible configuration enables both clockwise and counterclockwise operation for applications requiring flexible directional control.

The 3840R develops 69 ft-lbs starting torque, providing substantial breakaway force to initiate heavily loaded equipment, and 92 ft-lbs stall torque, representing the maximum torque produced when the output shaft is prevented from rotating. This combination of reduced operating speed, dependable horsepower, and reversible operation makes the motor an excellent choice for OEM machinery, conveyors, indexing equipment, material handling systems, industrial processing machinery, and other compressed-air powered applications.

Type: Multi-Vane Air Motor | Series: 3840 Series | Model: 3840R | Rotation: Reversible | Power: 1.35 HP | Free Speed: 238 RPM | Starting Torque: 69 ft-lbs | Stall Torque: 92 ft-lbs

Features:

• Multi-vane air motor design delivers smooth, dependable pneumatic rotary power.
• Reversible configuration provides reliable clockwise and counterclockwise operation.
• 1.35 HP output supports demanding industrial pneumatic drive applications.
• 238 RPM free speed is ideal for applications requiring controlled low-speed operation with increased torque.
• 69 ft-lbs starting torque helps overcome heavy startup loads efficiently.
• 92 ft-lbs stall torque provides a manufacturer-published reference for evaluating maximum torque capability.
• 3840 Series motor 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.
• Industrial conveyors, indexing equipment, and positioning systems.
• Material handling and processing equipment requiring bidirectional rotation.
• Packaging and production machinery.
• Replacement applications where the published motor specifications match the original equipment.

FAQs:

• Q: Is the Ingersoll Rand 3840R reversible?
  A: Yes. This model is designed to operate in both clockwise and counterclockwise directions for applications requiring bidirectional shaft rotation.
• 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 238 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 developed 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.

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For help selecting the correct Ingersoll Rand Air Motors for your assembly application, call (800) 608-5210 or email info@intlairtool.com