Ingersoll Rand G1H250PG4M Heavy Duty Straight Die Grinder | 0.4 HP | 25,000 RPM | 6 (mm) Collet | Piped Away Exhaust

For high-speed deburring, weld cleanup, and precision metal finishing, the Ingersoll Rand G1H250PG4M Heavy Duty Straight Die Grinder provides controlled grinding performance in a compact pneumatic configuration. Part of the G1 Series, this air-powered grinder delivers 0.4 HP (0.3 kW) rated power and a 25,000 RPM maximum free speed, making it suitable for removing burrs, smoothing rough casting surfaces, and finishing fabricated metal components with appropriately rated accessories. Its 6 mm collet securely holds compatible metric-shank grinding accessories, while the piped-away exhaust configuration allows discharged compressed air to be routed away from the immediate grinding area. The straight-body design supports controlled tool positioning during detailed material removal, particularly when working around machined surfaces, metal edges, and closely spaced components.

The G1H250PG4M combines the G1 Series' compact construction with a comfortable D-shaped grip that supports secure handling during repeated grinding operations. Its 2.5 m/s² vibration rating provides a useful reference for evaluating operator vibration exposure, although actual exposure depends on the working conditions and selected accessory. The grinder's construction is intended to withstand repeated drops, exposure to harsh chemicals, and challenging industrial environments. One-nut access for motor servicing simplifies maintenance access, helping technicians inspect and service internal motor components. With its higher rotational speed, metric collet configuration, and exhaust routing capability, this model is particularly suited to manufacturing and maintenance operations requiring detailed grinding rather than large-scale material removal.

Type: Heavy Duty Straight Pneumatic Die Grinder | Model: G1H250PG4M | Series: G1 Series | Rated Power: 0.4 HP (0.3 kW) | Maximum Free Speed: 25,000 RPM | Collet Size: 6 mm | Configuration: Straight / Horizontal | Exhaust: Piped Away | Vibration Level: 2.5 m/s²

Features:

• 0.4 HP (0.3 kW) rated power supports deburring, light material removal, rough casting cleanup, and precision metal finishing operations.
• 25,000 RPM maximum free speed provides high-speed rotation for compatible carbide burrs and mounted abrasive accessories.
• 6 mm collet accommodates properly sized metric-shank grinding accessories for detailed surface preparation and material removal.
• Piped-away exhaust configuration allows discharged compressed air to be routed away from the immediate work area when connected to an appropriate exhaust arrangement.
• Compact straight-body construction supports accurate tool positioning when grinding metal edges, recessed surfaces, and closely spaced components.
• Comfortable D-shaped grip provides a secure handling surface during repetitive grinding and finishing tasks.
• Construction intended to withstand repeated drops, harsh chemicals, and challenging work environments supports use in industrial manufacturing and maintenance facilities.
• One-nut access for motor servicing simplifies access to internal motor components during inspection and maintenance.

Applications:

• Metal fabrication and welding: Removing minor weld irregularities, smoothing sharp metal edges, and cleaning localized surfaces before finishing.
• Foundry and casting operations: Removing casting flash, cleaning rough castings, and refining accessible metal features after production.
• Tool and die workshops: Deburring machined components, cleaning profiles, and performing detailed material removal with compatible carbide burrs.
• Automotive and transportation maintenance: Finishing suitable metal components, removing burrs, and preparing surfaces during mechanical repair.
• Industrial manufacturing: Cleaning machined edges, smoothing component surfaces, and preparing fabricated parts for assembly.
• Machinery and equipment maintenance: Performing localized grinding, surface cleanup, and component refurbishment in maintenance workshops.

FAQs:

• Q: What grinding accessories are compatible with the Ingersoll Rand G1H250PG4M?

  A: The grinder uses a 6 mm collet for compatible metric-shank grinding accessories, including appropriately rated carbide burrs and mounted grinding points. Select accessories approved for the tool's operating speed, intended application, and permitted accessory dimensions. A 6 mm collet should not be treated as interchangeable with a 1/4-inch collet.

• Q: What is the difference between the G1H250PG4M and G1H200PG4M?

  A: Both models provide 0.4 HP rated power, use a 6 mm collet, and feature piped-away exhaust. The G1H250PG4M operates at 25,000 RPM, compared with 20,000 RPM for the G1H200PG4M. The higher-speed model is an option for applications requiring faster accessory rotation, provided the selected abrasive is rated for that speed.

• Q: What does piped-away exhaust mean on this pneumatic die grinder?

  A: Piped-away exhaust refers to a configuration that allows discharged compressed air to be directed through an exhaust routing arrangement rather than released directly around the tool. This can help manage airflow around the operator and workpiece. It does not replace a dedicated dust extraction or ventilation system.

• Q: Can this grinder be used for weld cleanup and casting deburring?

  A: Yes. Light material removal, rough casting cleanup, weld finishing, and deburring are among the G1 Series' intended applications. Use a grinding accessory matched to the workpiece material and required finish, and observe its maximum speed and operating limitations.

• Q: Is the G1H250PG4M suitable for continuous industrial grinding?

  A: The G1 Series is intended for industrial metalworking and maintenance applications, including repeated grinding and finishing tasks. However, the appropriate operating duration depends on the air supply, working conditions, maintenance practices, and accessory selection. Follow the manufacturer's operating and servicing instructions for the intended duty cycle.

Looking for more information about the Ingersoll Rand Straight Die Grinder? Click here to view the Catalog

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