For high-speed deburring, weld cleanup, and localized grinding in recessed or obstructed areas, the Ingersoll Rand G3X180RG4 Extended Horizontal Grinder combines a 1.35 HP pneumatic motor with 18,000 RPM free speed and a 1/4-inch collet. Its extended horizontal configuration provides additional reach for placing carbide burrs, mounted points, and other compatible shank-mounted accessories inside fabricated structures, machinery assemblies, and repair areas that are difficult to access with a standard-length die grinder.
The Ingersoll Rand G3X180RG4 uses a collet, which grips the straight shank of the mounted accessory, rather than a threaded spindle for conventional grinding wheels. The 18,000 RPM configuration provides faster accessory rotation than the 15,000 RPM G3X150RG4 model, supporting productive material removal when the abrasive or carbide burr is suited to the higher speed. Rear exhaust directs discharged air away from the immediate grinding area, helping reduce airflow disturbance around the accessory and workpiece.
Type: Extended Horizontal Grinder | Model: G3X180RG4 | Series: G3 Series | Configuration: Extended Horizontal | Motor Power: 1.35 HP | Free Speed: 18,000 RPM | Collet Size: 1/4" | Exhaust: Rear
Features:
- 1.35 HP pneumatic motor supplies power for deburring, localized grinding, weld cleanup, and surface-preparation operations.
- 18,000 RPM free speed supports fast material removal with compatible accessories rated for the tool's maximum operating speed.
- 1/4-inch collet accepts properly matched carbide burrs, mounted points, flap wheels, and other shank-mounted accessories.
- Extended horizontal configuration provides additional reach into recessed surfaces, fabricated assemblies, and machinery structures.
- Straight accessory alignment supports controlled work on openings, internal edges, narrow channels, and localized repair areas.
- Rear exhaust routes discharged air away from the accessory and immediate work surface.
- G3 Series configuration combines pneumatic power, elevated accessory speed, and extended reach for repeated industrial grinding work.
Made in USA: 
Applications:
- Metal fabrication — deburring internal edges, cleaning weld areas, and removing localized material inside fabricated structures.
- Foundry and casting cleanup — removing flash, parting lines, and surface imperfections from recessed areas of compatible cast components.
- Industrial maintenance and MRO — preparing machinery parts positioned behind brackets, housings, guards, and surrounding components.
- Heavy equipment and transportation repair — reaching structural joints, internal surfaces, and confined repair areas with compatible mounted accessories.
- General manufacturing — performing repetitive porting, edge finishing, deburring, and localized grinding on production components.
FAQs:
- Q: What is the main advantage of the G3X180RG4 extended configuration?
A: The extended horizontal body provides additional reach for positioning a mounted abrasive or carbide burr inside recessed areas and around structures that obstruct standard-length die grinders. - Q: What accessories fit the 1/4-inch collet?
A: Use properly rated accessories with a compatible 1/4-inch shank, including suitable carbide burrs, mounted points, and small finishing wheels. Confirm the accessory dimensions, workpiece compatibility, and speed rating before use. - Q: How does the G3X180RG4 differ from the G3X150RG4?
A: The G3X180RG4 operates at 18,000 RPM, while the G3X150RG4 operates at 15,000 RPM. Both supplied models use a 1/4-inch collet and 1.35 HP motor, so the primary difference is accessory speed. - Q: Can conventional threaded grinding wheels be installed on this grinder?
A: No. This model uses a 1/4-inch collet for compatible shank-mounted accessories and is not configured with a threaded spindle and guard for conventional grinding wheels. - Q: What does rear exhaust mean?
A: Rear exhaust routes discharged air toward the back of the tool rather than around the collet and workpiece, helping reduce direct 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
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