For weld blending, edge cleanup, and localized surface conditioning where a narrow abrasive path improves access, the Ingersoll Rand G1A120RS812 Angle Belt Sander combines a 0.4 HP pneumatic motor with 12,000 RPM free speed and a compact G1 Series angle configuration. This setup helps operators guide the abrasive belt along seams, brackets, contours, and fabricated components that may be difficult to reach with a wider disc sander or guarded grinding wheel.
The Ingersoll Rand G1A120RS812 supports controlled blending, deburring, scratch refinement, and localized coating removal with compatible abrasive belts. Its rear exhaust routes discharged air away from the immediate sanding area, helping reduce airflow disturbance around the belt and workpiece. The 12,000 RPM configuration provides a measured sanding rate for fabrication, repair, maintenance, and production-finishing tasks where belt access and surface control matter more than aggressive material removal.
Type: Angle Belt Sander | Model: G1A120RS812 | Series: G1 Series | Configuration: Angle | Motor Power: 0.4 HP | Free Speed: 12,000 RPM | Exhaust: Rear
Features:
- 0.4 HP pneumatic motor supplies power for weld blending, deburring, edge finishing, and localized surface preparation.
- 12,000 RPM free speed supports controlled abrasive-belt action with belts selected for the tool and workpiece.
- Angle-head configuration helps position the abrasive belt along seams, edges, brackets, contours, and restricted work areas.
- Narrow abrasive contact area supports focused material removal and surface refinement on localized sections of the workpiece.
- Rear exhaust directs discharged air away from the immediate sanding area and abrasive contact point.
- Abrasive belts can be selected according to the material, starting surface condition, and desired finish.
- G1 Series configuration provides a compact pneumatic sanding platform for repeated fabrication, repair, and production work.
Made in USA: 
Applications:
- Metal fabrication — blending weld seams, cleaning edges, and preparing localized areas on fabricated components.
- Automotive and transportation repair — refining brackets, seams, housings, and repair areas where compact belt access is useful.
- Industrial maintenance and MRO — removing localized corrosion, coatings, and surface irregularities from machinery parts.
- Stainless steel finishing — blending scratches and refining directional finishes with abrasives selected for stainless steel.
- General manufacturing — performing repetitive deburring, edge cleanup, and surface-preparation work on production components.
FAQs:
- Q: What is the Ingersoll Rand G1A120RS812 used for?
A: It is used for weld blending, edge cleanup, deburring, localized coating removal, and surface refinement where a narrow abrasive belt provides suitable access and control. - Q: Why choose an angle belt sander instead of a disc grinder?
A: A belt sander provides a narrower contact area that can follow seams, edges, and mild contours more easily. A disc grinder is generally selected when broader contact or heavier material removal is required. - Q: What abrasive belts fit this model?
A: Use only belts that match the manufacturer-specified width, length, and contact-arm configuration for the G1A120RS812. Confirm those dimensions before ordering replacement abrasives. - Q: How should abrasive grit be selected?
A: Choose grit according to the workpiece material, starting condition, amount of material to remove, and desired finish. Coarser belts handle initial correction, while finer grades refine the scratch pattern. - Q: What does rear exhaust mean?
A: Rear exhaust routes discharged air toward the back of the sander rather than directly around the abrasive belt and work surface, helping reduce airflow disturbance near the sanding area.
Available Variations and Specifications
| Model | HP | RPM | Exhaust | Output | Type | Weight lb (kg) |
Length mm (in) |
Height in (mm) |
CFM |
|---|---|---|---|---|---|---|---|---|---|
| G-Series Angle Grinders | |||||||||
| G1A120FG4 | 0.4 | 12,000 | Front | 1/4" collet | N/A | 1.1 (0.5) | 152 (6.0) | 3.0" (76) | 19 |
| G1A120RG4 | 0.4 | 12,000 | Rear | 1/4" collet | N/A | 1.1 (0.5) | 152 (6.0) | 3.0" (76) | 19 |
| G1A200FG4 | 0.4 | 20,000 | Front | 1/4" collet | N/A | 1.1 (0.5) | 152 (6.0) | 3.0" (76) | 25 |
| G1A200RG4 | 0.4 | 20,000 | Rear | 1/4" collet | N/A | 1.1 (0.5) | 152 (6.0) | 3.0" (76) | 25 |
| G1A200RH63 | 0.4 | 20,000 | Rear | 3/8"–24 thread, 3" guard | 1 | 1.3 (0.6) | 152 (6.0) | 1.9" (48) | 25 |
| G1A200RP63 | 0.4 | 20,000 | Rear | 3/8"–24 thread, 3" guard | 27, 28 | 1.3 (0.6) | 152 (6.0) | 1.9" (48) | 25 |
| G-Series Angle Sanders | |||||||||
| G1A120RS418 | 0.4 | 12,000 | Rear | 1/4" × 18" belt | N/A | 1.2 (0.5) | 355 (14.0) | N/A | 19 |
| G1A120RS4 | 0.4 | 12,000 | Rear | 1/4"–20 thread | N/A | 1.1 (0.5) | 152 (6.0) | 3.0" (76) | 19 |
| G1A120RS812 | 0.4 | 12,000 | Rear | 1/2" × 12" belt | N/A | 1.2 (0.5) | 274 (10.8) | N/A | 19 |
| G1A120RS818 | 0.4 | 12,000 | Rear | 1/2" × 18" belt | N/A | 1.5 (0.7) | 355 (14.0) | N/A | 19 |
| G1A200RS4 | 0.4 | 20,000 | Rear | 1/4"–20 thread | N/A | 1.1 (0.5) | 152 (6.0) | 3.0" (76) | 25 |
| G1A200RS812 | 0.4 | 20,000 | Rear | 1/2" × 12" belt | N/A | 1.2 (0.5) | 274 (10.8) | N/A | 25 |
| G1A200RS818 | 0.4 | 20,000 | Rear | 1/2" × 18" belt | N/A | 1.5 (0.7) | 355 (14.0) | N/A | 25 |
| G-Series Horizontal Grinders | |||||||||
| G1H200FG4 | 0.4 | 20,000 | Front | 1/4" collet | N/A | 0.9 (0.4) | 155 (6.1) | N/A | 19 |
| G1H200RG4 | 0.4 | 20,000 | Rear | 1/4" collet | N/A | 0.9 (0.4) | 155 (6.1) | N/A | 19 |
| G1H200RH63 | 0.4 | 20,000 | Rear | 3/8"–24 thread, 3" guard | 1 | 1.2 (0.5) | 155 (6.1) | N/A | 19 |
| G1H250RH63 | 0.4 | 25,000 | Rear | 3/8"–24 thread, 3" guard | 1 | 1.2 (0.5) | 155 (6.1) | N/A | 20 |
| G1H250FG4 | 0.4 | 25,000 | Front | 1/4" collet | N/A | 0.9 (0.4) | 155 (6.1) | N/A | 20 |
| G1H250RG4 | 0.4 | 25,000 | Rear | 1/4" collet | N/A | 0.9 (0.4) | 155 (6.1) | N/A | 20 |
| G1H350FG4 | 0.4 | 35,000 | Front | 1/4" collet | N/A | 0.9 (0.4) | 155 (6.1) | N/A | 25 |
| G1H350RG4 | 0.4 | 35,000 | Rear | 1/4" collet | N/A | 0.9 (0.4) | 155 (6.1) | N/A | 25 |
| G-Series Extended Horizontal Grinders | |||||||||
| G1X200RG4 | 0.4 | 20,000 | Rear | 1/4" collet | N/A | 1.3 (0.6) | 231 (9.1) | N/A | 25 |
| G1X250RG4 | 0.4 | 25,000 | Rear | 1/4" collet | N/A | 1.3 (0.6) | 231 (9.1) | N/A | 25 |
| G1X350RG4 | 0.4 | 35,000 | Rear | 1/4" collet | N/A | 1.3 (0.6) | 231 (9.1) | N/A | 25 |
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