For production deburring, weld cleanup, and localized material removal with straight-line accessory access, the Ingersoll Rand G3H150RG4 Horizontal Air Die Grinder combines a 1.35 HP pneumatic motor with 15,000 RPM free speed and a 1/4-inch collet. The horizontal configuration aligns the mounted accessory with the tool body, supporting controlled work on edges, openings, castings, and fabricated components where a straight approach is more practical than an angle-head grinder.
The Ingersoll Rand G3H150RG4 accepts compatible carbide burrs, mounted points, flap wheels, and other shank-mounted accessories selected for the workpiece and required finish. Its rear exhaust routes discharge air away from the immediate grinding area, helping reduce airflow disturbance around the accessory and work surface. With 1.35 HP available at 15,000 RPM, this G3 Series grinder provides a focused setup for fabrication, foundry cleanup, machinery repair, and repetitive production finishing.
Type: Horizontal Air Die Grinder | Model: G3H150RG4 | Series: G3 Series | Configuration: Horizontal | Motor Power: 1.35 HP | Free Speed: 15,000 RPM | Collet Size: 1/4" | Exhaust: Rear
Features:
- 1.35 HP pneumatic motor supplies power for deburring, grinding, weld cleanup, and localized surface preparation.
- 15,000 RPM free speed supports productive material removal with properly rated shank-mounted accessories.
- 1/4-inch collet accepts compatible carbide burrs, mounted points, flap wheels, and other accessories with matching shank dimensions.
- Horizontal configuration provides a straight accessory approach for edges, openings, castings, and fabricated components.
- Rear exhaust directs discharged air away from the immediate grinding area and workpiece.
- Collet-mounted accessory system allows the abrasive or cutting tool to be selected according to the material, profile, and desired finish.
- G3 Series configuration combines pneumatic power and controlled accessory speed for repeated industrial grinding work.
Made in USA: 
Applications:
- Metal fabrication — deburring cut edges, blending localized weld areas, and cleaning fabricated parts with compatible mounted abrasives.
- Foundry and casting cleanup — removing flash, parting lines, and surface imperfections from accessible areas of compatible cast components.
- Industrial maintenance and MRO — cleaning machinery parts, refining repair areas, and preparing surfaces during equipment service.
- Heavy equipment and transportation repair — working on brackets, housings, structural components, and localized repair areas.
- General manufacturing — performing repetitive edge finishing, deburring, and material removal on production components.
FAQs:
- Q: What accessories fit the Ingersoll Rand G3H150RG4?
A: Use properly rated accessories with a compatible 1/4-inch shank, such as suitable carbide burrs and mounted abrasive points. Confirm the accessory dimensions, material suitability, and maximum operating speed before use. - Q: How is a horizontal die grinder different from an angle die grinder?
A: A horizontal die grinder aligns the accessory with the tool body, providing a straight approach to the work. An angle die grinder positions the accessory at an angle for surfaces and edges that are easier to reach from the side. - Q: Can conventional grinding wheels be installed on this model?
A: This tool uses a 1/4-inch collet for compatible shank-mounted accessories. Do not install threaded-spindle grinding wheels or other accessories not intended for the tool's collet configuration. - Q: What does the 15,000 RPM rating mean?
A: It is the grinder's free speed, meaning rotational speed without load. Actual working speed varies with the accessory, workpiece material, applied pressure, and available compressed-air supply. - Q: What does rear exhaust do?
A: Rear exhaust routes discharged air toward the back of the tool rather than directly around the collet and workpiece, helping reduce airflow disturbance near the grinding area.
Available Variations and Specifications
| Model | HP | RPM | Exhaust | Output | Type | Weight lb (kg) |
Length in (mm) |
Height in (mm) |
CFM |
|---|---|---|---|---|---|---|---|---|---|
| G-Series Angle Grinders | |||||||||
| G3A100RP106 | 1.35 | 10,000 | Rear | 5/8" – 11 thread, 6" guard | 27, 28 | 4.9 (2.2) | 9.6" (244) | 3.6" (91) | 33 |
| G3A120RG4 | 1.35 | 12,000 | Rear | 1/4" collet | N/A | 3.7 (1.6) | 9.5" (241) | 3.3" (84) | 55 |
| G3A120RP1045 | 1.35 | 12,000 | Rear | 5/8" – 11 thread, 4.5" guard | 27, 28 | 4.6 (2) | 9.6" (244) | 3.6" (91) | 55 |
| G3A120RP105 | 1.35 | 12,000 | Rear | 5/8" – 11 thread, 5" guard | 27, 28 | 4.7 (2.1) | 9.6" (244) | 3.6" (91) | 55 |
| G-Series Horizontal Grinders | |||||||||
| G3H150RG4 | 1.35 | 15,000 | Rear | 1/4" collet | N/A | 2.3 (1) | 9.1" (231) | N/A | 33 |
| G3H180RG4 | 1.35 | 18,000 | Rear | 1/4" collet | N/A | 2.3 (1) | 9.1" (231) | N/A | 55 |
| G-Series Extended Angle Sanders | |||||||||
| G3L086RS10 | 1.35 | 8,600 | Rear | 5/8" – 11 thread | N/A | 4.3 (1.9) | 13.0" (330) | 3.0" (76) | 33 |
| G-Series Extended Horizontal Grinders | |||||||||
| G3X150RG4 | 1.35 | 15,000 | Rear | 1/4" collet | N/A | 3.7 (1.6) | 14.1" (358) | N/A | 33 |
| G3X150RH64 | 1.35 | 15,000 | Rear | 3/8" – 24 thread, 4" guard | 1 | 4.5 (2) | 14.1" (358) | N/A | 33 |
| G3X180RG4 | 1.35 | 18,000 | Rear | 1/4" collet | N/A | 3.7 (1.6) | 14.1" (358) | N/A | 55 |
| G3X180RH63 | 1.35 | 18,000 | Rear | 3/8" – 24 thread, 3" guard | 1 | 4.5 (2) | 14.1" (358) | N/A | 55 |
Looking for more information about the Ingersoll Rand Grinder? Click here to view the Catalog
For help choosing the correct Ingersoll Rand Grinders for your application, please 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
