Description
US PRO 8521 3/4″ Industrial air impact gun 900LB US PRO
The US PRO 8521 is a professional-grade pneumatic impact wrench engineered for heavy-duty fastening applications. Featuring a robust 3/4″ square drive and twin hammer mechanism, it delivers exceptional power with a maximum torque output of 1200N.m (885ft-lb). Operating at 4600 RPM free speed, this tool handles bolts up to 22mm with precision control via an adjustable moment bound range of 500-1100 N.m. The 3/8″ air inlet accommodates standard workshop compressors at 6-8kg/cm² pressure, whilst the 1.5″ air length ensures manoeuvrability in confined spaces. Ideal for automotive, industrial, and construction work requiring reliable, consistent performance.
Square drive： 3/4″
Free speed: 4600r.p.m
Bolt capacity: 22mm
Max.torque: 1200N.m(885ft-lb)
Hammer mechanism: Twin hammer
Air inlet: 3/8″
Air pressure: 6-8kg/cm2
Air length 1.5″
Moment bound: 500-1100 N.m
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