

INGERSOLL RAND 231C 1/2" DRIVE AIR IMPACT WRENCH
Professional Power You Can Trust - Ingersoll Rand 1/2 Drive Air Impact Wrench (231C Super-Duty)
600 ft-lbs torque with twin-hammer precision for automotive and industrial use
When stubborn lug nuts and rusted bolts won't budge, you need the proven reliability of the Ingersoll Rand 231C. This heavy duty air impact wrench delivers maximum 600 ft-lbs of reverse torque, making quick work of automotive repairs, equipment maintenance, and industrial assembly tasks. Built for professionals who demand consistent performance, this pneumatic impact wrench combines power with precision control.
The exclusive twin-hammer mechanism ensures smooth operation at up to 8,000 RPM, while the adjustable power regulator lets you dial in exactly the right amount of force for each job. Whether you're a professional mechanic or serious DIY enthusiast, this compressed air impact wrench is ready to tackle your toughest fastening challenges.
Key Features and Benefits
Perfect Applications for This Air Impact Wrench
Ideal when you need reliable fastening power for:
- Automotive lug nut removal and tire changes
- Engine and transmission work
- Heavy equipment maintenance and repair
- Construction and fabrication projects
- Industrial assembly and disassembly tasks
- Fleet maintenance and commercial vehicle service
Technical Specifications
Drive Size | 1/2 inch |
---|---|
Maximum Reverse Torque | 600 ft-lbs |
Working Torque | 350 ft-lbs forward / 600 ft-lbs reverse |
Maximum RPM | 8,000 |
Impacts Per Minute | 1,200 |
Air Consumption | 4.2 CFM operating / 22 CFM at load |
Operating Pressure | 90 PSI |
Air Inlet Size | 1/4 inch NPT |
Minimum Hose Size | 3/8 inch |
Weight | 5.8 lbs |
Overall Length | 7.3 inches |
Noise Level | 99 dB |
Get Professional Results with Proven Reliability
Join thousands of mechanics and contractors who trust Ingersoll Rand's 25+ years of impact wrench innovation. This pneumatic air impact wrench arrives ready to use with full lubrication and backed by comprehensive warranty coverage.
Add this professional-grade 1/2 drive air impact wrench to your toolkit today.
Frequently Asked Questions
What size air compressor do I need for this impact wrench?
You'll need a compressor that delivers at least 4.2 CFM at 90 PSI for normal operation, with 22 CFM capacity during heavy-load conditions. Most 60+ gallon shop compressors will handle this tool effectively.
How does this compare to cordless impact wrenches?
This pneumatic impact wrench provides consistent 600 ft-lbs of torque without battery limitations or charging downtime. While cordless tools offer portability, air-powered tools like the 231C deliver superior sustained power for heavy-duty professional use.
Is this suitable for automotive lug nuts?
Absolutely. With 600 ft-lbs of breakaway torque, this air impact wrench easily handles standard automotive lug nuts (typically torqued to 80-120 ft-lbs) as well as larger truck and commercial vehicle fasteners.
What maintenance does this air tool require?
The 231C features pressure-feed lubrication and comes pre-lubricated. Regular maintenance includes adding a few drops of pneumatic tool oil to the air inlet daily and periodic cleaning. The two-piece construction makes internal servicing straightforward when needed.
Warranty and Brand Trust
Ingersoll Rand provides a one-year limited warranty covering defects in materials and workmanship. With over 160 years of industrial tool innovation, Ingersoll Rand has earned the trust of professionals worldwide through durable, high-performance pneumatic solutions designed for demanding work environments.
About the Brand