Ingersoll Rand G1H250PH63 Horizontal Air Grinder | 0.4 HP | 25,000 RPM | 3/8" - 24 Thread | Rear-Piped Away Exhaust

For grinding, deburring, and surface finishing in metal fabrication and industrial maintenance environments, the Ingersoll Rand G1H250PH63 Horizontal Air Grinder delivers high-speed pneumatic performance in a compact straight-body configuration. Part of the G1 Series Type 1 range, this grinder features a 0.4 HP (0.3 kW) vane motor and a 25,000 RPM maximum free speed for light material removal, cleaning rough castings, and weld finishing. Its 3/8"-24 threaded spindle provides a threaded mounting connection for compatible grinding accessories, distinguishing this model from conventional collet-equipped die grinders. With a manufacturer-listed 3-inch (76 mm) wheel diameter, accessory selection must account for the tool's mounting configuration, speed rating, and applicable wheel restrictions. The piped-away exhaust allows discharged compressed air to be routed away from the immediate grinding position.

The G1H250PH63 measures 6.14 inches (156 mm) in overall length and weighs 1.26 lbs (0.57 kg), making it suitable for grinding tasks where compact tool dimensions and manageable weight are important. Its lightweight composite housing accommodates working environments with changing temperatures, while a patent-pending soft-mount system helps reduce vibration transmitted through the tool and supports motor and switch service life. A motor controller helps maintain operating speed and prevent overspeeding. With 9.4 L/s maximum air consumption, a 1/4-inch air inlet, and an 8 mm minimum hose diameter, this grinder can be integrated into a compressed air system sized for its operating requirements. Its straight horizontal configuration supports grinding and finishing along accessible metal surfaces in manufacturing, fabrication, and equipment maintenance applications.

Type: Horizontal Pneumatic Type 1 Grinder | Model: G1H250PH63 | Series: G1 Series Type 1 | Rated Power: 0.4 HP (0.3 kW) | Maximum Free Speed: 25,000 RPM | Wheel Diameter: 3" (76 mm) | Spindle Thread: 3/8"-24 | Configuration: Straight / Horizontal | Exhaust: Piped Away | Weight: 1.26 lbs (0.57 kg) | Overall Length: 6.14" (156 mm) | Maximum Air Consumption: 9.4 L/s (approximately 19.9 CFM) | Air Inlet Diameter: 1/4" | Minimum Hose Diameter: 8 mm | Vibration Level: 10.7 m/s² | Vibration Uncertainty: 3.3 m/s² | Sound Pressure Level: 81.1 dB(A)

Features:

• 0.4 HP vane motor delivers pneumatic power for light grinding, deburring, casting cleanup, and localized metal finishing.
• 25,000 RPM maximum free speed supports high-speed operation with properly mounted grinding accessories rated for the tool's speed.
• 3/8"-24 threaded spindle provides an attachment connection for compatible grinding accessories and mounting hardware.
• 3-inch wheel diameter specification helps buyers identify appropriately sized grinding accessories, subject to the manufacturer's mounting and safety requirements.
• Motor controller helps maintain operating speed while providing overspeed protection during grinder operation.
• Patent-pending soft-mount system reduces vibration transmission and helps extend motor and switch service life.
• Lightweight composite housing supports handling during repeated grinding operations and accommodates changing workplace temperatures.
• Piped-away exhaust configuration allows discharged compressed air to be routed away from the grinding position through a suitable exhaust arrangement.

Applications:

• Metal fabrication and welding: Cleaning weld areas, removing minor surface irregularities, and preparing fabricated metal components for subsequent finishing.
• Foundry and casting operations: Removing accessible casting flash, cleaning rough castings, and smoothing localized metal surfaces.
• Railroad and heavy machinery maintenance: Grinding suitable equipment components, removing burrs, and preparing metal surfaces during mechanical repairs.
• Industrial manufacturing and MRO: Performing light material removal, component deburring, and surface preparation on manufactured metal parts.
• Shipbuilding and construction equipment fabrication: Cleaning fabricated metal assemblies and finishing accessible weld areas with approved grinding accessories.
• Aerospace and precision component manufacturing: Performing localized finishing operations where the grinder and selected accessory meet applicable material and process requirements.

FAQs:

• Q: What type of grinding accessories fit the Ingersoll Rand G1H250PH63?

  A: The G1H250PH63 features a 3/8"-24 threaded spindle and a manufacturer-listed 3-inch wheel diameter. Accessories must have an approved mounting arrangement and a maximum operating speed rating of at least 25,000 RPM. Confirm wheel type, mounting hardware, guarding requirements, and compatibility with the grinder before installation.

• Q: Is the G1H250PH63 a conventional collet-type die grinder?

  A: No. This model belongs to the G1 Series Type 1 Grinder range and uses a 3/8"-24 threaded spindle rather than a conventional shank-gripping collet. The threaded spindle and compatible mounting arrangement must be considered when selecting grinding accessories.

• Q: What does the piped-away exhaust configuration do?

  A: Piped-away exhaust allows discharged compressed air to be directed away from the immediate grinding position using a suitable exhaust routing arrangement. It helps manage tool exhaust airflow but does not collect grinding dust or replace dedicated workplace ventilation.

• Q: How much compressed air does the G1H250PH63 consume?

  A: The manufacturer lists maximum air consumption at 9.4 L/s, equivalent to approximately 19.9 CFM. The grinder also has a 1/4-inch air inlet and requires a minimum hose diameter of 8 mm. Select an air supply capable of meeting the tool's airflow needs at the recommended operating pressure.

• Q: What is the purpose of the soft-mount system?

  A: The soft-mount system helps reduce vibration transmission through the grinder and contributes to extended motor and switch life. The manufacturer lists a vibration value of 10.7 m/s² with an uncertainty of 3.3 m/s² for this model. Appropriate vibration exposure controls should be followed during use.

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