The core features of the IR231 are its exceptional power-to-weight ratio and ergonomic design.It utilizes an optimized vane-type air motor that starts quickly,responds sensitively,and delivers high torque even at low speeds.The housing is made of high-strength composite material,reducing overall weight while ensuring sufficient structural integrity.The precision-crafted impact mechanism(twin-hammer type)guarantees each blow is powerful and provides an extremely long service life.Furthermore,its quiet exhaust system effectively reduces operating noise and directs exhaust air away from the work area,enhancing comfort.The handle contour is carefully designed for a comfortable grip,reducing fatigue during prolonged use.
The core specifications reflect its heavy-duty positioning.Its free speed is typically around 8000 RPM,with a no-load impact frequency of over 1500 BPM.The maximum reverse torque(loosening torque)is as high as 880 ft-lb(approx.1193 Nm),sufficient for most heavy-duty vehicle wheel bolts and large machinery fasteners.The air inlet is a standard 1/4"NPT,and a 3/8"inner diameter air hose is recommended for optimal performance.The overall length is approximately 208 mm,and it weighs about 2.5 kg,striking a good balance between power and portability.The required working air pressure is 90 PSI(approx.6.2 Bar),where it performs best.
The IR231 is widely used in industrial and vehicle repair scenarios requiring high torque output.In automotive repair,it is ideal for removing and tightening wheel bolts on trucks,buses,and heavy engineering machinery.On production lines or in assembly workshops,it is used for the final tightening of large mechanical components,such as engine mounts and transmission fixing bolts.It is also common in heavy industries like wind power maintenance and railway repair for handling large flange connection bolts or structural fasteners.Its reliability and power make it a standard tool in any workplace facing challenging bolt removal tasks.
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