Ingersoll Rand 320PG Air Pencil Grinder | 320PG | 56000 RPM | 0.37" Spindle Offset | Rear Exhaust

For precision grinding, mold finishing, and detailed metalworking in confined spaces, the Ingersoll Rand 320PG Air Pencil Grinder provides high-speed material removal in a slim, lightweight configuration. Operating at a maximum free speed of 56,000 RPM, this pneumatic pencil grinder supports accurate grinding, final cleaning, polishing, light deburring, and flash removal using compatible carbide burrs and mounted points. Its 0.37-inch (9.4 mm) spindle offset is a manufacturer-specified dimensional characteristic to consider when selecting tooling for detailed work. The compact 5.51-inch (140 mm) overall length helps operators maneuver around intricate dies, molds, and small components where conventional grinders may be difficult to position.

Weighing just 0.51 lbs (0.23 kg), the 320PG combines a narrow pencil-style body with a custom molded thermoplastic polyurethane (TPU) grip, a flexible, slip-resistant gripping material that helps maintain control during precision work. An oversized speed control knob allows convenient adjustment for different finishing tasks and provides an accessible means of shutting off the tool. The rear exhaust configuration directs discharged compressed air toward the back of the grinder, while a manufacturer-specified vibration level below 3.2 m/s² supports controlled handling. With 8 CFM (220 L/min) air consumption at load, the 320PG offers a compact pneumatic solution for machine shops, manufacturing facilities, and general industrial finishing operations.

Type: Air Pencil Grinder | Model: 320PG | Maximum Free Speed: 56,000 RPM | Spindle Offset: 0.37" (9.4 mm) | Overall Length: 5.51" (140 mm) | Weight: 0.51 lbs (0.23 kg) | Air Consumption at Load: 8 CFM (220 L/min) | Exhaust: Rear | Vibration Level: <3.2 m/s² | Grip: Custom Molded TPU | Compatible Abrasive Types: Carbide Burrs and Mounted Points

Features:

• High-speed pneumatic operation at 56,000 RPM supports precise grinding, finishing, and removal of small surface imperfections.
• Slim pencil-style profile provides access to intricate work areas and small components where larger grinders are difficult to maneuver.
• Compact 5.51-inch overall length supports controlled positioning during detailed die, mold, and precision component finishing.
• Lightweight 0.51 lb construction reduces the amount of tool weight operators must support during repetitive finishing tasks.
• Custom molded TPU grip provides a slip-resistant gripping surface for controlled handling and manipulation.
• Oversized speed control knob allows convenient speed adjustment and accessible tool shutoff.
• Rear exhaust directs discharged air away from the front of the grinder, while the manufacturer-specified vibration level is below 3.2 m/s².
• Accepts compatible carbide burrs and mounted points, allowing operators to perform multiple precision grinding and finishing tasks with one tool.

Tech Tip: To increase tool performance, extend tool life and lessen repair costs use it with a Filter-Regulator-Lubricator (FRLs)

Applications:

• Tool and die shops: Performing final cleaning, detailed polishing, and localized grinding on dies and tooling surfaces.
• Mold manufacturing: Finishing intricate mold features and removing small imperfections from accessible mold cavities.
• Precision machining: Removing light burrs and refining edges on machined metal components.
• Manufacturing and production: Removing flash and performing small-area surface cleanup on manufactured parts.
• General industrial workshops: Completing detailed grinding and finishing tasks using compatible mounted points or carbide burrs.

FAQs:

• Q: What is the Ingersoll Rand 320PG pencil grinder used for?
  A: The 320PG is used for precision grinding, light deburring, mold finishing, die polishing, final cleaning, and flash removal. Its slim body allows controlled work on smaller components and intricate surfaces where a larger grinder would be less practical.
• Q: What type of grinding accessories can the 320PG use?
  A: Ingersoll Rand specifies compatibility with carbide burrs and mounted points. Accessory shank dimensions, collet compatibility, and maximum operating speed must be verified before installation. The manufacturer also offers the separate 320PGK kit with assorted grinding accessories.
• Q: How much compressed air does the 320PG require?
  A: The manufacturer specifies air consumption of 8 CFM (220 L/min) at load. Select a compressed air system capable of supporting the tool's required airflow and operating pressure, accounting for other tools operating on the same supply.
• Q: Can the Ingersoll Rand 320PG be used in tight spaces?
  A: Yes. Its slim pencil-style construction and 5.51-inch overall length help operators reach intricate surfaces and small work areas. Actual accessibility depends on the workpiece geometry and the mounted grinding accessory.
• Q: What is the difference between the 320PG and 320PGK?
  A: The 320PG is the individual pencil grinder model. The separately offered 320PGK is a kit containing the 320PG grinder, five assorted mounted points, five assorted carbide burrs, and a hard case. Select the kit when the additional accessories are required.

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For help choosing the correct Ingersoll Rand Pencil Grinders, please call (800) 608-5210 or email info@intlairtool.com