Ingersoll Rand 231C Super Duty Impact Wrench | 1/2" Drive | 8000 RPM | 600 (ft-lbs) Max Torque | Trigger Start

For automotive repairs, tire service, and routine machinery maintenance, the Ingersoll Rand 231C Pistol Grip Pneumatic Impact Wrench delivers substantial fastener-loosening power in a proven air-powered configuration. Equipped with a 1/2" square drive with hog-ring socket retention, this impact wrench produces 600 ft-lbs (813 Nm) of maximum reverse torque for removing stubborn nuts and bolts. Its 25–350 ft-lbs (34–475 Nm) working torque range, as listed in the Ingersoll Rand Vehicle Services Catalog, provides a reference for regular fastening applications, while the 8,000 RPM free speed (socket rotational speed without resistance) supports efficient fastener rundown. With 1,200 blows per minute, the 231C delivers repeated rotational impacts to help loosen tight fasteners without requiring continuous manual turning force.

The Ingersoll Rand 231C features a full-size pistol grip configuration with trigger actuation for straightforward operation during vehicle and equipment servicing. Ingersoll Rand emphasizes the wrench's consistent impact output and ability to withstand repeated drops and harsh working environments. Measuring 7.3" (185 mm) in length and weighing 5.8 lbs (2.63 kg), the tool provides a practical balance of reach and fastening capability. Its 425 ft-lbs (575 Nm) forward torque rating is listed separately from the maximum reverse rating to help buyers distinguish tightening and loosening performance. The wrench operates at 90 PSI (6.2 bar) through a 1/4" air inlet, with 22 CFM air consumption at load and a 3/8" minimum hose size. These specifications help maintenance teams evaluate the tool against their compressed-air supply and fastening requirements.

Type: Pneumatic Impact Wrench | Model: 231C | Series: 231 Series | Configuration: Pistol Grip | Actuation: Trigger | Drive Size: 1/2" | Drive Type: Square, Hog-Ring | Maximum Reverse Torque: 600 ft-lbs (813 Nm) | Working Torque Range: 25–350 ft-lbs (34–475 Nm), | Free Speed: 8,000 RPM | Blows Per Minute: 1,200 | Length: 7.3" (185 mm) | Free Speed Sound Pressure / Power: 99 / 110 dB(A) | Vibration Level: 6.5 m/s² (K: 0.8) | Air Inlet: 1/4" | Minimum Hose Size: 3/8" (10 mm) | Average Air Consumption: 4.2 CFM (119 L/min) | Air Consumption at Load: 22 CFM (623 L/min) | Operating Pressure: 90 PSI (6.2 bar)

Features:

• 600 ft-lbs maximum reverse torque provides loosening capability for stubborn automotive, vehicle service, and machinery fasteners.
• 425 ft-lbs forward torque offers a separately specified fastening output for installation tasks within the tool's rated capability.
• 8,000 RPM free speed supports rapid socket rotation when running down or removing threaded fasteners.
• 1,200 blows per minute provide repeated impact action to help loosen tight nuts and bolts.
• 1/2" square drive with hog-ring retention holds compatible impact sockets while allowing socket changes between fastening tasks.
• Full-size pistol grip with trigger actuation provides a familiar operating arrangement for automotive technicians and maintenance personnel.
• Consistent impact output supports repeated fastening and fastener-removal operations in workshop environments.
• Construction suited to harsh working environments and repeated drops supports routine service and repair work.

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

Applications:

• Automotive tire and wheel service – Removing wheel nuts and installing compatible wheel fasteners during tire changes and vehicle maintenance.
• Professional repair garages – Loosening suspension hardware, mounting bolts, and accessible mechanical fasteners during vehicle repairs.
• Fleet and light truck maintenance – Servicing appropriately sized threaded fasteners on service vehicles and fleet equipment.
• Industrial maintenance and MRO – Removing bolts from machinery brackets, equipment housings, and mechanical assemblies during servicing.
• Mechanical workshops and home garages – Performing general fastener removal, equipment repairs, and restoration work using a suitable compressed-air system.

FAQs:

• Q: How much torque does the Ingersoll Rand 231C impact wrench deliver?
  A: Ingersoll Rand specifies 600 ft-lbs of maximum reverse torque and 425 ft-lbs of forward torque. The Vehicle Services Catalog also lists a working torque range of 25–350 ft-lbs. These figures represent different operating measurements, and maximum reverse torque should not be interpreted as an accurate final tightening setting.
• Q: What air compressor capacity is required for the Ingersoll Rand 231C?
  A: The manufacturer lists 22 CFM air consumption at load and 4.2 CFM average consumption, with an operating pressure of 90 PSI. The tool requires a minimum 3/8" air hose and has a 1/4" air inlet. Choose a compressor capable of supplying the required airflow for your operating duty cycle, allowing for pressure losses through hoses, fittings, and air preparation equipment.
• Q: Does the 231C use a hog-ring or pin-retainer drive?
  A: The 231C uses a 1/2" square drive with hog-ring retention. A hog ring is a retaining ring on the anvil that helps hold a compatible impact socket in place while permitting socket changes. Always use properly fitted impact-rated sockets.
• Q: Can the Ingersoll Rand 231C be used for changing vehicle tires?
  A: Yes. Its 1/2" square drive and 600 ft-lbs maximum reverse torque make it suitable for compatible wheel-fastener removal and installation. Always complete final wheel-nut tightening with a calibrated torque wrench according to the vehicle manufacturer's specified torque.
• Q: What is the difference between the Ingersoll Rand 231C and 2130?
  A: The 231C provides 600 ft-lbs maximum reverse torque at 8,000 RPM and weighs 5.8 lbs. The 2130 offers 550 ft-lbs maximum torque at 9,500 RPM and weighs approximately 4.2 lbs. The 231C favors higher rated loosening torque, while the 2130 offers greater free speed and a lighter tool body.

Looking for more information about Ingersoll Rand Impact Wrench? Click here to view the Catalog

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