Ingersoll Rand 7978 Pencil Grinder is designed for precision grinding, deburring, polishing, and finishing applications where a compact pneumatic tool and high rotational speed are required. Featuring a 0.10 HP motor, 60,000 RPM free speed, and a 1/8" collet size, this pencil-style grinder provides a lightweight solution for detailed surface preparation work using compatible mounted abrasive accessories.
Ingersoll Rand 7978 combines high-speed operation with a slim pencil grinder design to help operators access smaller or detailed work areas. Its front exhaust configuration directs discharged air forward during operation, while the 1/8" collet provides compatibility with appropriately sized mounted points and abrasive accessories rated for the tool's operating speed.
Type: Pencil Grinder | Motor Power: 0.10 HP | Free Speed: 60,000 RPM | Collet Size: 1/8" | Exhaust: Front Exhaust
Features:
- 0.10 HP pneumatic motor provides power for precision grinding and finishing applications.
- 60,000 RPM free speed supports detailed work requiring high rotational speed.
- 1/8" collet accepts compatible mounted abrasive accessories.
- Pencil-style design provides access to smaller work areas and detailed surface preparation points.
- Front exhaust directs discharged air forward during operation.
- Compact pneumatic configuration supports controlled handling for precision applications.
- Air-powered operation is suitable for industrial environments using properly conditioned compressed air.
Applications:
- Precision deburring — removing small burrs and sharp edges from compatible metal components.
- Die and mold finishing — performing detailed grinding and surface refinement in smaller work areas.
- Metal fabrication — completing fine finishing tasks after cutting, machining, or welding operations.
- Aerospace and manufacturing applications — supporting precision surface preparation where compact tool access is needed.
- General maintenance and finishing — handling detailed grinding, polishing, and cleanup work with compatible abrasive accessories.
FAQs:
- Q: What accessories can be used with the Ingersoll Rand 7978 Pencil Grinder?
A: The tool is specified with a 1/8" collet. Use only compatible mounted abrasive accessories that match the collet size and are rated for the grinder's 60,000 RPM operating speed. - Q: What is the advantage of a 60,000 RPM pencil grinder?
A: The high rotational speed is suited for detailed grinding, deburring, and finishing applications requiring precise material removal with appropriately rated accessories. - Q: What does the front exhaust design do?
A: Front exhaust directs discharged air forward during operation. Exhaust direction can be a consideration when selecting a tool for a specific workstation or application setup. - Q: How does a pencil grinder differ from a standard die grinder?
A: Pencil grinders are typically designed for precision work in smaller areas and use smaller accessories, while standard die grinders are generally used for broader grinding and material removal tasks. - Q: What should be checked before using this pencil grinder?
A: Inspect the accessory, collet condition, air supply, and overall tool condition before operation. Always verify that accessories are compatible with the tool specifications and rated operating speed.
| SKU | RPM | Throttle Style | Output | Exhaust | Spindle Offset - IN (MM) | Length - IN (MM) | Weight - OZ (KG) | CFM | DBA | Standard Collet - Insert |
|---|---|---|---|---|---|---|---|---|---|---|
| 7980-2 | 85,000 | Lever | 1/8" Collet | Front | 0.6" (14) | 5.6" (143) | 14.0 (0.4) | 9 | 84 | 31812-4 |
| 7980-A | 85,000 | Twist | 1/8" Collet | Front | 0.6" (14) | 5.6" (143) | 14.0 (0.4) | 9 | 84 | 31812-4 |
| 7978 | 60,000 | Slide | 1/8" Collet | Front | 0.4" (9) | 5.6" (143) | 5.5 (0.16) | 6 | 80 | 46119-2 |
| GH011A-600-1 | 60,000 | Twist | 1/8" Collet | Rear | 0.3" (8) | 5.3" (136) | 2.6 (0.07) | 7 | 77 | 47568-1 |
| 7114-E | 20,000 | Lever | 1/8" Collet | Front | 0.5" (12) | 6.0" (152) | 13.0 (0.37) | 6 | 79 | 31812-4 |
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
- Type
- Pencil Grinder
- Power (hp)
- 0.10
- RPM
- 60000
- Collet Size (in.)
- 1/8
- Exhaust
- Front
- Throttle Type
- Slide Throttle
- Length (in.)
- 5.6
- Spindle Offset (in.)
- 0.4
- Air Consumption (CFM)
- 6
- Vibration Level (m/s²)
- < 2.5
- Sound Level (dBA)
- 80
